Source 1review2000Allergy
Toolkit/Immunoblot
Immunoblot
Also known as: two-dimensional immunoblot
Taxonomy: Technique Branch / Method. Workflows sit above the mechanism and technique branches rather than replacing them.
Summary
By using soy-absorbed, peanut-allergic patient sera on two-dimensional immunoblots and N-terminal amino-acid sequencing, about 30 protein fractions were shown to be isoforms, or fractions, of the three major peanut proteins.
Usefulness & Problems
Why this is useful
Immunoblotting is described as a molecular-immunologic method for identifying allergenic protein fractions recognized by patient sera. In this review it is used to dissect shared and unique peanut and soy allergen signals.; mapping allergenic protein fractions; distinguishing unique versus cross-reactive allergen fractions
Source:
Immunoblotting is described as a molecular-immunologic method for identifying allergenic protein fractions recognized by patient sera. In this review it is used to dissect shared and unique peanut and soy allergen signals.
Source:
mapping allergenic protein fractions
Source:
distinguishing unique versus cross-reactive allergen fractions
Problem solved
It helps localize IgE-reactive bands and clarify whether allergenicity is shared or unique across legumes.; links patient IgE binding patterns to specific peanut or soy protein fractions
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It helps localize IgE-reactive bands and clarify whether allergenicity is shared or unique across legumes.
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links patient IgE binding patterns to specific peanut or soy protein fractions
Problem links
links patient IgE binding patterns to specific peanut or soy protein fractions
LiteratureIt helps localize IgE-reactive bands and clarify whether allergenicity is shared or unique across legumes.
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It helps localize IgE-reactive bands and clarify whether allergenicity is shared or unique across legumes.
Taxonomy & Function
Primary hierarchy
Technique Branch
Method: A concrete measurement method used to characterize an engineered system.
Target processes
No target processes tagged yet.
Implementation Constraints
cofactor dependency: cofactor requirement unknownencoding mode: genetically encodedimplementation constraint: context specific validationoperating role: sensor
It requires separated protein fractions, patient sera, and blot-based detection methods.; requires patient sera and protein separation/blotting workflows
The review does not present immunoblotting as a standalone predictor of clinical reaction severity.; the review does not provide standardized performance characteristics; molecular binding patterns still require clinical interpretation
Validation
Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication
Supporting Sources
Ranked Claims
Elimination of all legumes in individuals with clinical reactions to one legume is generally unwarranted despite frequent multiple positive legume tests.
Epitope analysis suggests that linear IgE-binding epitopes are prominent in major peanut allergens and that some single amino-acid substitutions can reduce IgE binding, implying therapeutic potential.
Molecular studies indicate that peanut and soy contain both homologous and unique allergenic proteins, helping explain why serologic cross-reactivity does not always produce clinical coallergy.
Serologic or skin-test cross-reactivity between peanut and soy is common, but clinically important peanut-soy coallergy is uncommon.
clinical soy reactivity in peanut allergic children 3%coallergy rate atopic dermatitis cohort 1 0.8%coallergy rate atopic dermatitis cohort 2 1.8%soy reactivity among severe peanut allergy cases 6.5%
Approval Evidence
1 source1 linked approval claimfirst-pass slug immunoblot
By using soy-absorbed, peanut-allergic patient sera on two-dimensional immunoblots and N-terminal amino-acid sequencing, about 30 protein fractions were shown to be isoforms, or fractions, of the three major peanut proteins.
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review summarysupports
Molecular studies indicate that peanut and soy contain both homologous and unique allergenic proteins, helping explain why serologic cross-reactivity does not always produce clinical coallergy.
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Comparisons
Source-stated alternatives
The review pairs immunoblotting with sequencing, epitope analysis, and challenge-based clinical studies.
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The review pairs immunoblotting with sequencing, epitope analysis, and challenge-based clinical studies.
Source-backed strengths
used in the review to identify isoforms and unique allergenic fractions
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used in the review to identify isoforms and unique allergenic fractions
Compared with Epitope analysis
The review pairs immunoblotting with sequencing, epitope analysis, and challenge-based clinical studies.
Shared frame: source-stated alternative in extracted literature
Strengths here: used in the review to identify isoforms and unique allergenic fractions.
Relative tradeoffs: the review does not provide standardized performance characteristics; molecular binding patterns still require clinical interpretation.
Source:
The review pairs immunoblotting with sequencing, epitope analysis, and challenge-based clinical studies.
Ranked Citations
- 1.