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Were talking about chemical degradation, where the peptide chains break down, rendering them useless
Cross-reactive T cells T cells are inherently more cross-reactive than B cells because they recognize short peptide sequences presented on the major histocompatibility complex (MHC) rather than complex structural epitopes and because they can target conserved internal proteins rather than just surface and structural proteins that are accessible to antibodies on extracellular virus
E., Sudderth, J., Yue, Y., Zia, A., Glass, D., Deberardinis, R
Left at room temperature the window is shorter see below
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