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| Product Name | SIYRY |
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| Description | Purity >95%. Alloreactive T lymphocytes are readily detected in unprimed animals although they have never encountered the alloantigen before. This well-established phenomenon is usually explained with the assumption that a self-MHC molecule complexed with a defined peptide resembles the allo-MHC molecule with another peptide and induces the corresponding T cell specificities. Here;for the first time and in support of this hypothesis;self-MHC-restricted peptides are described for a T cell clone that was induced with allo-MHC. The allo-MHC-specific CTL clone 2C was derived from a H-2b mouse and recognizes H-2Ld complexed with the naturally occurring endogenous peptide LSPFPFDL. H-2Kb was shown to be involved in positive selection of its TCR;and peptides associated with this MHC molecule are implicated in the process. To identify such peptides;positional scanning with random peptide libraries combined with an iterative approach was employed. Several active peptides were found and the most efficient;SIYRYYGL;was chosen for further studies. Recognition by 2C of the two MHC-peptide adducts H-2Ld + LSPFPFDL and H-2Kb + SIYRYYGL is mediated by the same TCR and appears to be similarly efficient as concluded from inhibition experiments with an Id-specific Ab. CTLs from SIYRYYGL-primed H-2b mice respond to H-2Ld + LSPFPFDL. This reciprocal cross-reactivity suggests that structural features are shared by the two MHC-peptide complexes. |
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| Size | n/a |
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| Concentration | n/a |
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| Applications | n/a |
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| Other Names | n/a |
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| Gene, Accession, CAS # | n/a |
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| Catalog # | LS-H4784 |
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| Order / More Info | SIYRY from LIFESPAN BIOSCIENCES INC. |
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| Product Specific References | n/a |
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