>4ym1C (C:) observed residues (from ATOM records)
gpptfnppvpyfgrlqggltarrtiiikgyvpptgksfainfkvgssgdialhinprmgn
gtvvrnsllngswgseekkithnpfgpgqffdlsircgldrfkvyangqhlfdfahrlsa
fqrvdtleiqgdvtlsyvqi