... Pro, Val or Lys, c-carboxylation of Glu, glycosylation of Ser or Thr, bromination of Trp, sulfation of Tyr, cyclization of N-terminal Gln,and epimerization of several different residues. It ... structure of conomarphinwas similar to those of other conotoxin cDNAs. ThecDNA-encoded precursor of conomarphin consisted of a conserved M-superfamily signal peptide of 25 resi-dues, a proregion of ... of Protein Research, Tongji University, Shanghai, China2 Institute of Biochemistry and Cell Biology, Shanghai Institute of Biology Sciences, Chinese Academy of Sciences, China3 Department of...