Chains and heterogens:
PDB Chain Sequences:
>1grf_ (-) vasydylvigggsgglasarraaelgaraavveshklggtcvnvgcvpkkvmwntavhse fmhdhadygfpscegkfnwrvikekrdayvsrlnaiyqnnltkshieiirghaaftsdpk ptievsgkkytaphiliatggmpstphesqipgaslgitsdgffqleelpgrsvivgagy iavemagilsalgsktslmirhdkvlrsfdsmistncteelenagvevlkfsqvkevkkt lsglevsmvtavpgrlpvmtmipdvdcllwaigrvpntkdlslnklgiqtddkghiivde fqntnvkgiyavgdvcgkalltpvaiaagrklahrlfeykedskldynniptvvfshppi gtvgltedeaihkygienvktystsftpmyhavtkrktkcvmkmvcankeekvvgihmqg lgcdemlqgfavavkmgatkadfdntvaihptsseelvtlr