further structural analyses of the uh2a , by tryptic digestion of citraconylated uh2a and of a ubiquitinated brcn fragment , showed that the ubiquitin c-terminal gly-gly is linked to the epsilon-amino group of either lys-123 , 125 , or 126 in the h2a sequence , and that the ubiquitin sequence is similar to that of calf thymus but differs at least in the sequence of residues 12-27 .
C0949722
ubiquitin c
C0041538
ubiquitin