OVA (55-62)

• CAT Number: I044282
• CAS Number: 151992-56-2
• Molecular Formula: C47H81N13O11
• Molecular Weight: 1004.30
• Purity: ≥95%
• Synonyms: (2S)-2-[[(2S)-6-amino-2-[[(2S)-3-carboxy-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2,6-diaminohexanoyl]amino]-3-methylbutanoyl]amino]-3-methylbutanoyl]amino]-5-(diaminomethylideneamino)pentanoyl]amino]-3-phenylpropanoyl]amino]propanoyl]amino]hexanoyl]amino]-4-methylpentanoic acid
• InChI: InChI=1S/C47H81N13O11/c1-26(2)23-35(46(70)71)58-41(65)31(18-11-13-21-49)54-43(67)34(25-36(61)62)57-42(66)33(24-29-15-8-7-9-16-29)56-40(64)32(19-14-22-53-47(51)52)55-44(68)37(27(3)4)60-45(69)38(28(5)6)59-39(63)30(50)17-10-12-20-48/h7-9,15-16,26-28,30-35,37-38H,10-14,17-25,48-50H2,1-6H3,(H,54,67)(H,55,68)(H,56,64)(H,57,66)(H,58,65)(H,59,63)(H,60,69)(H,61,62)(H,70,71)(H4,51,52,53)/t30-,31-,32-,33-,34-,35-,37-,38-/m0/s1
• InChIKey: UBAOXMCIIZKBET-OGWYRZOZSA-N
• SMILES: CC(C)C[C@@H](C(=O)O)NC(=O)[C@H](CCCCN)NC(=O)[C@H](CC(=O)O)NC(=O)[C@H](CC1=CC=CC=C1)NC(=O)[C@H](CCCN=C(N)N)NC(=O)[C@H](C(C)C)NC(=O)[C@H](C(C)C)NC(=O)[C@H](CCCCN)N

OVA (55–62)（Cat No.:I044282）is an 8-amino acid peptide fragment derived from ovalbumin, corresponding to residues 55 to 62. This epitope, typically the sequence SIINFEKL, is a well-known MHC class I-restricted antigen recognized by CD8⁺ cytotoxic T lymphocytes in C57BL/6 mice. It is one of the most widely used model peptides in immunology for studying antigen presentation, T-cell receptor specificity, and immune response kinetics. OVA (55–62) is frequently employed in vaccine development, adoptive T cell transfer models, and cytotoxicity assays, serving as a gold standard for evaluating antigen-specific cellular immune responses.