Substitution of peptide bond 53-54 of HEL(52-61) with an ethylene bond rather than reduced peptide bond is tolerated by an MHC-II restricted T cell.
Journal article published in 1996 by
L. Ettouati,
Salvi Jp,
Trescol Biémont Mc,
N. Walchshofer,
D. Gerlier 
,
C. Rabourdin Combe,
J. Paris
,
C. Rabourdin Combe,
J. Paris
