Chains and heterogens:
PDB Chain Sequences:
>1gro_ (-) skvvvpaqgkkitlqngklnvpenpiipyiegdgigvdvtpamlkvvdaavekaykgerk iswmeiytgekstqvygqdvwlpaetldlireyrvaikgplttpvgggirellvalrqel dlyiclrpvryyqgtpspvkhpeltdmvifrensediyagiewkadsadaekvikflree mgvkkirfpdhcgigikpcseegtkrlvraaieyaiandrdsvtlvhkgnimkftegafk dwgyqlareefggelidggpwlkvknpntgkeivikdviadaflqqillrpaeydviacm nlngdyisdalaaqvggigiapganigdecalfeathgtapkyagqdkvnpgsiilsaem mlrhmgwteaadlivkgmegainaktvtydferlmdgakllkcsefgdaiienm