Toolkit/NCBI sequence screening for 2A/2A-like occurrence

NCBI sequence screening for 2A/2A-like occurrence

Computational Method·Research·Since 2021

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

Summary

NCBI sequence screening for 2A/2A-like occurrence is a computational survey method that updates the distribution of viral 2A and 2A-like sequences by screening sequences deposited in the National Center for Biotechnology Information database. In the cited 2021 review, this approach identified 69 newly reported 2A-like occurrences across multiple virus groups.

Usefulness & Problems

Why this is useful

This method is useful for mapping the taxonomic distribution of 2A and 2A-like sequences that are relevant because such sequences have been used in heterologous co-expression systems to cleave proteins of biotechnological interest. It supports identification of newly reported occurrences in public sequence repositories, expanding the known sequence space for these elements.

Source:

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

Problem solved

It addresses the problem of incomplete and outdated knowledge about where 2A and 2A-like sequences occur across viruses. By screening NCBI sequence records, the method updates occurrence data and reveals newly reported examples across positive-sense single-stranded RNA, double-stranded RNA, and negative-sense single-stranded RNA viruses.

Source:

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

Taxonomy & Function

Primary hierarchy

Technique Branch

Method: A concrete computational method used to design, rank, or analyze an engineered system.

Target processes

recombinationselection

Implementation Constraints

Implementation is described only as screening sequences available in the National Center for Biotechnology Information database for 2A/2A-like occurrences. The evidence does not specify query design, motif definitions, software pipeline, scoring thresholds, or downstream validation workflow.

The supplied evidence supports database screening for occurrence mapping, but it does not describe the search algorithm, inclusion criteria, sensitivity, specificity, or experimental validation of identified sequences. No evidence is provided for performance benchmarking, independent replication, or direct functional testing of the newly identified 2A-like sequences within this method.

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 9distribution 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 10distribution 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 11distribution 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 12distribution 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 13distribution 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 14distribution 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 15distribution 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 16distribution 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 17distribution summarysupports2021Source 1needs review

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

Claim 18distribution summarysupports2021Source 1needs review

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

Claim 19distribution summarysupports2021Source 1needs review

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

Claim 20distribution summarysupports2021Source 1needs review

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

Claim 21distribution summarysupports2021Source 1needs review

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

Claim 22distribution summarysupports2021Source 1needs review

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

Claim 23distribution summarysupports2021Source 1needs review

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

Claim 24distribution summarysupports2021Source 1needs review

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

Claim 25mechanism summarysupports2021Source 1needs review

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

Claim 26mechanism summarysupports2021Source 1needs review

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

Claim 27mechanism summarysupports2021Source 1needs review

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

Claim 28mechanism summarysupports2021Source 1needs review

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

Claim 29mechanism summarysupports2021Source 1needs review

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

Claim 30mechanism summarysupports2021Source 1needs review

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

Claim 31mechanism summarysupports2021Source 1needs review

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

Claim 32mechanism summarysupports2021Source 1needs review

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

Claim 33review 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 34review 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 35review 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 36review 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 37review 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 38review 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 39review 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 40review 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 source1 linked approval claimfirst-pass slug ncbi-sequence-screening-for-2a-2a-like-occurrence
we review and update the occurrence of 2A/2A-like sequences in different groups of viruses by screening the sequences available in the National Center for Biotechnology Information database

Source:

review findingsupports

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

Source:

Comparisons

Source-backed strengths

The cited application reported 69 newly reported 2A-like occurrences, indicating that the approach can recover substantial additional distributional information from public databases. The reported breakdown was 62 occurrences in positive-sense single-stranded RNA species, 6 in double-stranded RNA viruses, and 1 in a negative-sense single-stranded RNA virus.

Ranked Citations

  1. 1.
    StructuralSource 1Viruses2021Claim 1Claim 2Claim 3

    Seeded from load plan for claim cl4. Extracted from this source document.