Toolkit/2A sequence

2A sequence

Protein Domain·Research·Since 2021

Also known as: 2A, 2A/2A-like sequences, 2A-like sequence

Taxonomy: Mechanism Branch / Component. Workflows sit above the mechanism and technique branches rather than replacing them.

Summary

2A is a short viral oligopeptide sequence that mediates a ribosome skipping effect during translation, causing co-translational cleavage of polyproteins. It is used in heterologous co-expression systems to separate proteins of biotechnological interest from a single coding sequence.

Usefulness & Problems

Why this is useful

2A and 2A-like sequences are useful as versatile tools for cleaving proteins of biotechnological interest in heterologous co-expression systems. This enables co-expression of multiple protein products from one translated polyprotein precursor.

Problem solved

This tool addresses the need to generate separable protein products during heterologous expression without encoding each protein as an independent transcriptional unit. The supplied evidence specifically supports its use for co-translational cleavage in polyprotein-based expression designs.

Problem links

Need better screening or enrichment leverage

Derived

2A is a short oligopeptide sequence that induces a ribosome "skipping" effect during translation, resulting in co-translational cleavage of polyproteins. It is used in heterologous co-expression systems to separate proteins of biotechnological interest from a single coding sequence.

Need conditional recombination or state switching

Derived

2A is a short oligopeptide sequence that induces a ribosome "skipping" effect during translation, resulting in co-translational cleavage of polyproteins. It is used in heterologous co-expression systems to separate proteins of biotechnological interest from a single coding sequence.

Need tighter control over protein production

Derived

2A is a short oligopeptide sequence that induces a ribosome "skipping" effect during translation, resulting in co-translational cleavage of polyproteins. It is used in heterologous co-expression systems to separate proteins of biotechnological interest from a single coding sequence.

Taxonomy & Function

Primary hierarchy

Mechanism Branch

Component: A low-level protein part used inside a larger architecture that realizes a mechanism.

Target processes

recombinationselectiontranslation

Implementation Constraints

cofactor dependency: cofactor requirement unknownencoding mode: genetically encodedimplementation constraint: context specific validationoperating role: regulatorswitch architecture: cleavage

Implementation is based on inserting the 2A oligopeptide sequence between coding regions in a polyprotein design so that ribosome skipping yields co-translational cleavage. The provided evidence does not specify sequence variants, construct architecture details, host organisms, or delivery methods.

The supplied evidence does not provide quantitative performance data such as cleavage efficiency, context dependence, residual peptide scar size, or host-specific behavior. It also does not document direct side-by-side comparisons among different 2A or 2A-like sequences in specific expression platforms.

Validation

Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication

Supporting Sources

Ranked Claims

Claim 1application summarysupports2021Source 1needs review

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

Claim 2application summarysupports2021Source 1needs review

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

Claim 3application summarysupports2021Source 1needs review

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

Claim 4application summarysupports2021Source 1needs review

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

Claim 5application summarysupports2021Source 1needs review

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

Claim 6application summarysupports2021Source 1needs review

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

Claim 7application summarysupports2021Source 1needs review

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

Claim 8application summarysupports2021Source 1needs review

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

Claim 9application summarysupports2021Source 1needs review

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

Claim 10application summarysupports2021Source 1needs review

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

Claim 11application summarysupports2021Source 1needs review

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

Claim 12application summarysupports2021Source 1needs review

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

Claim 13application summarysupports2021Source 1needs review

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

Claim 14application summarysupports2021Source 1needs review

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

Claim 15application summarysupports2021Source 1needs review

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

Claim 16application summarysupports2021Source 1needs review

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

Claim 17application summarysupports2021Source 1needs review

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

Claim 18application summarysupports2021Source 1needs review

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

Claim 19application summarysupports2021Source 1needs review

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

Claim 20application summarysupports2021Source 1needs review

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

Claim 21application summarysupports2021Source 1needs review

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

Claim 22application summarysupports2021Source 1needs review

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

Claim 23application summarysupports2021Source 1needs review

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

Claim 24application summarysupports2021Source 1needs review

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

Claim 25application summarysupports2021Source 1needs review

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

Claim 26application summarysupports2021Source 1needs review

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

Claim 27application summarysupports2021Source 1needs review

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

Claim 28application summarysupports2021Source 1needs review

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

Claim 29distribution breakdownsupports2021Source 1needs review

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

double-stranded RNA virus count 6negative-sense single-stranded RNA virus count 1positive-sense single-stranded RNA species count 62
Claim 30distribution breakdownsupports2021Source 1needs review

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

double-stranded RNA virus count 6negative-sense single-stranded RNA virus count 1positive-sense single-stranded RNA species count 62
Claim 31distribution breakdownsupports2021Source 1needs review

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

double-stranded RNA virus count 6negative-sense single-stranded RNA virus count 1positive-sense single-stranded RNA species count 62
Claim 32distribution breakdownsupports2021Source 1needs review

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

double-stranded RNA virus count 6negative-sense single-stranded RNA virus count 1positive-sense single-stranded RNA species count 62
Claim 33distribution breakdownsupports2021Source 1needs review

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

double-stranded RNA virus count 6negative-sense single-stranded RNA virus count 1positive-sense single-stranded RNA species count 62
Claim 34distribution breakdownsupports2021Source 1needs review

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

double-stranded RNA virus count 6negative-sense single-stranded RNA virus count 1positive-sense single-stranded RNA species count 62
Claim 35distribution breakdownsupports2021Source 1needs review

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

double-stranded RNA virus count 6negative-sense single-stranded RNA virus count 1positive-sense single-stranded RNA species count 62
Claim 36distribution breakdownsupports2021Source 1needs review

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

double-stranded RNA virus count 6negative-sense single-stranded RNA virus count 1positive-sense single-stranded RNA species count 62
Claim 37distribution breakdownsupports2021Source 1needs review

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

double-stranded RNA virus count 6negative-sense single-stranded RNA virus count 1positive-sense single-stranded RNA species count 62
Claim 38distribution breakdownsupports2021Source 1needs review

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

double-stranded RNA virus count 6negative-sense single-stranded RNA virus count 1positive-sense single-stranded RNA species count 62
Claim 39distribution breakdownsupports2021Source 1needs review

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

double-stranded RNA virus count 6negative-sense single-stranded RNA virus count 1positive-sense single-stranded RNA species count 62
Claim 40distribution breakdownsupports2021Source 1needs review

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

double-stranded RNA virus count 6negative-sense single-stranded RNA virus count 1positive-sense single-stranded RNA species count 62
Claim 41distribution breakdownsupports2021Source 1needs review

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

double-stranded RNA virus count 6negative-sense single-stranded RNA virus count 1positive-sense single-stranded RNA species count 62
Claim 42distribution breakdownsupports2021Source 1needs review

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

double-stranded RNA virus count 6negative-sense single-stranded RNA virus count 1positive-sense single-stranded RNA species count 62
Claim 43distribution breakdownsupports2021Source 1needs review

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

double-stranded RNA virus count 6negative-sense single-stranded RNA virus count 1positive-sense single-stranded RNA species count 62
Claim 44distribution breakdownsupports2021Source 1needs review

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

double-stranded RNA virus count 6negative-sense single-stranded RNA virus count 1positive-sense single-stranded RNA species count 62
Claim 45distribution breakdownsupports2021Source 1needs review

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

double-stranded RNA virus count 6negative-sense single-stranded RNA virus count 1positive-sense single-stranded RNA species count 62
Claim 46distribution breakdownsupports2021Source 1needs review

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

double-stranded RNA virus count 6negative-sense single-stranded RNA virus count 1positive-sense single-stranded RNA species count 62
Claim 47distribution breakdownsupports2021Source 1needs review

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

double-stranded RNA virus count 6negative-sense single-stranded RNA virus count 1positive-sense single-stranded RNA species count 62
Claim 48distribution breakdownsupports2021Source 1needs review

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

double-stranded RNA virus count 6negative-sense single-stranded RNA virus count 1positive-sense single-stranded RNA species count 62
Claim 49distribution breakdownsupports2021Source 1needs review

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

double-stranded RNA virus count 6negative-sense single-stranded RNA virus count 1positive-sense single-stranded RNA species count 62
Claim 50distribution breakdownsupports2021Source 1needs review

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

double-stranded RNA virus count 6negative-sense single-stranded RNA virus count 1positive-sense single-stranded RNA species count 62
Claim 51distribution breakdownsupports2021Source 1needs review

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

double-stranded RNA virus count 6negative-sense single-stranded RNA virus count 1positive-sense single-stranded RNA species count 62
Claim 52distribution breakdownsupports2021Source 1needs review

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

double-stranded RNA virus count 6negative-sense single-stranded RNA virus count 1positive-sense single-stranded RNA species count 62
Claim 53distribution breakdownsupports2021Source 1needs review

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

double-stranded RNA virus count 6negative-sense single-stranded RNA virus count 1positive-sense single-stranded RNA species count 62
Claim 54distribution breakdownsupports2021Source 1needs review

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

double-stranded RNA virus count 6negative-sense single-stranded RNA virus count 1positive-sense single-stranded RNA species count 62
Claim 55distribution breakdownsupports2021Source 1needs review

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

double-stranded RNA virus count 6negative-sense single-stranded RNA virus count 1positive-sense single-stranded RNA species count 62
Claim 56distribution breakdownsupports2021Source 1needs review

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

double-stranded RNA virus count 6negative-sense single-stranded RNA virus count 1positive-sense single-stranded RNA species count 62
Claim 57distribution summarysupports2021Source 1needs review

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

Claim 58distribution summarysupports2021Source 1needs review

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

Claim 59distribution summarysupports2021Source 1needs review

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

Claim 60distribution summarysupports2021Source 1needs review

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

Claim 61distribution summarysupports2021Source 1needs review

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

Claim 62distribution summarysupports2021Source 1needs review

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

Claim 63distribution summarysupports2021Source 1needs review

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

Claim 64distribution summarysupports2021Source 1needs review

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

Claim 65distribution summarysupports2021Source 1needs review

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

Claim 66distribution summarysupports2021Source 1needs review

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

Claim 67distribution summarysupports2021Source 1needs review

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

Claim 68distribution summarysupports2021Source 1needs review

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

Claim 69distribution summarysupports2021Source 1needs review

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

Claim 70distribution summarysupports2021Source 1needs review

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

Claim 71distribution summarysupports2021Source 1needs review

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

Claim 72distribution summarysupports2021Source 1needs review

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

Claim 73distribution summarysupports2021Source 1needs review

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

Claim 74distribution summarysupports2021Source 1needs review

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

Claim 75distribution summarysupports2021Source 1needs review

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

Claim 76distribution summarysupports2021Source 1needs review

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

Claim 77distribution summarysupports2021Source 1needs review

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

Claim 78distribution summarysupports2021Source 1needs review

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

Claim 79distribution summarysupports2021Source 1needs review

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

Claim 80distribution summarysupports2021Source 1needs review

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

Claim 81distribution summarysupports2021Source 1needs review

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

Claim 82distribution summarysupports2021Source 1needs review

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

Claim 83distribution summarysupports2021Source 1needs review

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

Claim 84distribution summarysupports2021Source 1needs review

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

Claim 85mechanism summarysupports2021Source 1needs review

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

Claim 86mechanism summarysupports2021Source 1needs review

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

Claim 87mechanism summarysupports2021Source 1needs review

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

Claim 88mechanism summarysupports2021Source 1needs review

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

Claim 89mechanism summarysupports2021Source 1needs review

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

Claim 90mechanism summarysupports2021Source 1needs review

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

Claim 91mechanism summarysupports2021Source 1needs review

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

Claim 92mechanism summarysupports2021Source 1needs review

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

Claim 93mechanism summarysupports2021Source 1needs review

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

Claim 94mechanism summarysupports2021Source 1needs review

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

Claim 95mechanism summarysupports2021Source 1needs review

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

Claim 96mechanism summarysupports2021Source 1needs review

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

Claim 97mechanism summarysupports2021Source 1needs review

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

Claim 98mechanism summarysupports2021Source 1needs review

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

Claim 99mechanism summarysupports2021Source 1needs review

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

Claim 100mechanism summarysupports2021Source 1needs review

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

Claim 101mechanism summarysupports2021Source 1needs review

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

Claim 102mechanism summarysupports2021Source 1needs review

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

Claim 103mechanism summarysupports2021Source 1needs review

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

Claim 104mechanism summarysupports2021Source 1needs review

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

Claim 105mechanism summarysupports2021Source 1needs review

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

Claim 106mechanism summarysupports2021Source 1needs review

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

Claim 107mechanism summarysupports2021Source 1needs review

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

Claim 108mechanism summarysupports2021Source 1needs review

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

Claim 109mechanism summarysupports2021Source 1needs review

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

Claim 110mechanism summarysupports2021Source 1needs review

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

Claim 111mechanism summarysupports2021Source 1needs review

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

Claim 112mechanism summarysupports2021Source 1needs review

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

Claim 113review findingsupports2021Source 1needs review

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

newly reported 2A-like sequences 69
Claim 114review findingsupports2021Source 1needs review

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

newly reported 2A-like sequences 69
Claim 115review findingsupports2021Source 1needs review

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

newly reported 2A-like sequences 69
Claim 116review findingsupports2021Source 1needs review

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

newly reported 2A-like sequences 69
Claim 117review findingsupports2021Source 1needs review

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

newly reported 2A-like sequences 69
Claim 118review findingsupports2021Source 1needs review

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

newly reported 2A-like sequences 69
Claim 119review findingsupports2021Source 1needs review

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

newly reported 2A-like sequences 69
Claim 120review findingsupports2021Source 1needs review

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

newly reported 2A-like sequences 69
Claim 121review findingsupports2021Source 1needs review

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

newly reported 2A-like sequences 69
Claim 122review findingsupports2021Source 1needs review

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

newly reported 2A-like sequences 69
Claim 123review findingsupports2021Source 1needs review

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

newly reported 2A-like sequences 69
Claim 124review findingsupports2021Source 1needs review

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

newly reported 2A-like sequences 69
Claim 125review findingsupports2021Source 1needs review

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

newly reported 2A-like sequences 69
Claim 126review findingsupports2021Source 1needs review

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

newly reported 2A-like sequences 69
Claim 127review findingsupports2021Source 1needs review

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

newly reported 2A-like sequences 69
Claim 128review findingsupports2021Source 1needs review

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

newly reported 2A-like sequences 69
Claim 129review findingsupports2021Source 1needs review

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

newly reported 2A-like sequences 69
Claim 130review findingsupports2021Source 1needs review

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

newly reported 2A-like sequences 69
Claim 131review findingsupports2021Source 1needs review

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

newly reported 2A-like sequences 69
Claim 132review findingsupports2021Source 1needs review

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

newly reported 2A-like sequences 69
Claim 133review findingsupports2021Source 1needs review

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

newly reported 2A-like sequences 69
Claim 134review findingsupports2021Source 1needs review

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

newly reported 2A-like sequences 69
Claim 135review findingsupports2021Source 1needs review

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

newly reported 2A-like sequences 69
Claim 136review findingsupports2021Source 1needs review

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

newly reported 2A-like sequences 69
Claim 137review findingsupports2021Source 1needs review

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

newly reported 2A-like sequences 69
Claim 138review findingsupports2021Source 1needs review

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

newly reported 2A-like sequences 69
Claim 139review findingsupports2021Source 1needs review

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

newly reported 2A-like sequences 69
Claim 140review findingsupports2021Source 1needs review

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

newly reported 2A-like sequences 69

Approval Evidence

1 source5 linked approval claimsfirst-pass slug 2a-sequence
2A is an oligopeptide sequence that mediates a ribosome "skipping" effect and can mediate a co-translation cleavage of polyproteins. These sequences have been used in many heterologous co-expression systems because they are versatile tools for cleaving proteins of biotechnological interest.

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application summarysupports

2A and 2A-like sequences have been used in heterologous co-expression systems as versatile tools for cleaving proteins of biotechnological interest.

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distribution breakdownsupports

Among the 69 newly reported 2A-like occurrences, 62 were in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

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distribution summarysupports

2A and 2A-like sequences are widely distributed across viruses from insect to mammalian viruses.

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mechanism summarysupports

2A is an oligopeptide sequence that mediates ribosome skipping and can mediate co-translation cleavage of polyproteins.

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review findingsupports

The review reports first-time occurrence of 2A-like sequences in 69 sequences identified by screening NCBI sequence records.

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Comparisons

Source-backed strengths

The main reported strength is that 2A functions as a versatile cleavage element in many heterologous co-expression systems. The literature summary also indicates broad natural distribution of 2A-like sequences across viral groups, with 69 newly reported occurrences including positive-sense single-stranded RNA, double-stranded RNA, and negative-sense single-stranded RNA viruses.

Compared with cLIPS2

2A sequence and cLIPS2 address a similar problem space because they share recombination, selection, translation.

Shared frame: shared target processes: recombination, selection, translation; shared mechanisms: translation_control

Strengths here: looks easier to implement in practice.

Compared with CRISPR/Cas9

2A sequence and CRISPR/Cas9 address a similar problem space because they share recombination, selection, translation.

Shared frame: shared target processes: recombination, selection, translation; shared mechanisms: photocleavage, translation_control

Strengths here: looks easier to implement in practice.

Compared with optogenetic circuits

2A sequence and optogenetic circuits address a similar problem space because they share recombination, translation.

Shared frame: same top-level item type; shared target processes: recombination, translation; shared mechanisms: translation_control

Strengths here: looks easier to implement in practice.

Ranked Citations

  1. 1.

    Seeded from load plan for claim cl1. Extracted from this source document.