Figure 3.
Ubiquitin acceptor lysines. MS/MS spectra of tryptic peptides containing Gly/Gly linked to lysine. (A) Histone H2A; MH33+ 725.11; VTIAQGGVLPNIQAVLLPK(GlyGly)K+3. (B) Histone H2B; MH22+ 549.79; AVTK(GlyGly)YTSSK+2. (C) Hypoxia- inducible factor 1 alpha; MH33+ 619.99; LELVEK(GlyGly)LFAEDTEAK+3.