Chains and heterogens:
PDB Chain Sequences:
>2pi7A (A:) sknglkkrkltnpvqlddfdgyikdmakdsdykfslqfeelkligldiphfaadlpmnrc knrytnilpydfsrvrlvsmneeegsdyinanyipgynspqeyiatqgplpetrndfwkm vlqqksqiivmltqcnekrrvkcdhywpftedpiaygditvemlseeehtdwvyrnfris yadevqdvmhfnytawpdhgvptanaaesilqfvqmvrqksvkskgpmiihcsagvgrtg tfialdwllqhirdhefvdilglvsdmrsyrmsmvqteeqyifihqcvqlmwqkkkqqfc isdviyenvsks
>2pi7A (A:) lkkrkltnpvqlddfdgyikdmakdsdykfslqfeelkligldiphfaadlpmnrcknry tnilpydfsrvrlvsmneeegsdyinanyipgynspqeyiatqgplpetrndfwkmvlqq ksqiivmltqcnekrrvkcdhywpftedpiaygditvemlseeehtdwvyrnfrisyade vqdvmhfnytawpdhgvptanaaesilqfvqmvrqksvkskgpmiihcsagvgrtgtfia ldwllqhirdhefvdilglvsdmrsyrmsmvqteeqyifihqcvqlmwqkkkqq
>2pi7B (B:) sknglkkrkltnpvqlddfdgyikdmakdsdykfslqfeelkligldiphfaadlpmnrc knrytnilpydfsrvrlvsmneeegsdyinanyipgynspqeyiatqgplpetrndfwkm vlqqksqiivmltqcnekrrvkcdhywpftedpiaygditvemlseeehtdwvyrnfris yadevqdvmhfnytawpdhgvptanaaesilqfvqmvrqksvkskgpmiihcsagvgrtg tfialdwllqhirdhefvdilglvsdmrsyrmsmvqteeqyifihqcvqlmwqkkkqqfc isdviyenvsks
>2pi7B (B:) rkltnpvqlddfdgyikdmakdsdykfslqfeelkligldiphfaadlpmnrcknrytni lpydfsrvrlvsmneeegsdyinanyipgynspqeyiatqgplpetrndfwkmvlqqksq iivmltqcnekrrvkcdhywpftedpiaygditvemlseeehtdwvyrnfrisyadevqd vmhfnytawpdhgvptanaaesilqfvqmvrqksvkskgpmiihcsagvgrtgtfialdw llqhirdhefvdilglvsdmrsyrmsmvqteeqyifihqcvqlmwqkkk