OVA (257-264) Peptide Fragment

Product Name: OVA (257-264) Peptide Fragment

Sequence One Letter Code: SIINFEKL

Sequence Three Letter Code: H-Ser-Ile-Ile-Asn-Phe-Glu-Lys-Leu-OH

Cas No: 138831-86-4

Chemical Formula:C45H74N10O13

Molecular Weight: 963.2

Purity: ≥ 95%

Form: Lyophilized

Storage Conditions: - 20 °C

SMILES: CC[C@H](C)[C@@H](C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CC(=O)N)C(=O)N[C@@H](CC1=CC=CC=C1)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(C)C)C(=O)O)NC(=O)[C@H](CO)N

IUPAC: (2S)-2-[[(2S)-6-amino-2-[[(2S)-2-[[(2S)-2-[[(2S)-4-amino-2-[[(2S,3S)-2-[[(2S,3S)-2-[[(2S)-2-amino-3-hydroxypropanoyl]amino]-3-methylpentanoyl]amino]-3-methylpentanoyl]amino]-4-oxobutanoyl]amino]-3-phenylpropanoyl]amino]-4-carboxybutanoyl]amino]hexanoyl]amino]-4-methylpentanoic acid

INCHIKEY: JVJGCCBAOOWGEO-RUTPOYCXSA-N

INCHI:

InChI=1S/C45H74N10O13/c1-7-25(5)36(55-44(66)37(26(6)8-2)54-38(60)28(47)23-56)43(65)52-32(22-34(48)57)42(64)51-31(21-27-14-10-9-11-15-27)41(63)50-30(17-18-35(58)59)40(62)49-29(16-12-13-19-46)39(61)53-33(45(67)68)20-24(3)4/h9-11,14-15,24-26,28-33,36-37,56H,7-8,12-13,16-23,46-47H2,1-6H3,(H2,48,57)(H,49,62)(H,50,63)(H,51,64)(H,52,65)(H,53,61)(H,54,60)(H,55,66)(H,58,59)(H,67,68)/t25-,26-,28-,29-,30-,31-,32-,33-,36-,37-/m0/s1

Source / Species: chicken

Conjugation: Unconjugated

Code Nacres: NA.26

Application: OVA (257–264), also known as SIINFEKL, is a synthetic ovalbumin-derived peptide representing a well-characterized MHC class I H-2Kᵇ-restricted epitope. It is efficiently presented by antigen-presenting cells and recognized by CD8⁺ T cells, making it a standard model antigen in cellular immunology. OVA (257–264) is widely used to study antigen processing, peptide–MHC presentation, T-cell activation, cytotoxic T lymphocyte responses, immune tolerance, and vaccine mechanisms. This peptide serves as a benchmark epitope for immunological assay development and antigen-specific cellular immune response studies.