Chains and heterogens:
PDB Chain Sequences:
>3d37A (A:) mqnnsygyavsvrvggkehrhwerydidsdflipadsfdfvigrlgpeaaipdlsgesce vvidgqivmtgiigsqrhgkskgsrelslsgrdlagflvdcsapqlnvkgmtvldaakkl aapwpqikavvlkaennpalgkidiepgetvwqalthiansvglhpwlepdgtlvvggad yssppvatlcwsrtdsrcniermdiewdtdnrfsevtflaqshgrsgdsakhdlkwvykd ptmtlhrpktvvvsdadnlaalqkqakkqladwrlegftltitvgghktrdgvlwqpglr vhviddehgidavfflmgrrfmlsrmdgtqtelrlkedgiwtpdaypkkaeaarkrkgkr kgvshkgkkggkkqaetavfe
>3d37A (A:) ygyavsvrvggkehrhwerydidsdflipadsfdfvigrpdlsgescevvidgqivmtgi igsqrhgkskgsrelslsgrdlagflvdcsapqlnvkgmtvldaakklaapwpqikavvl kaennpalgkidiepgetvwqalthiansvglhpwlepdgtlvvggadyssppvatlcws rtdsrcniermdiewdtdnrfsevtflaqshghdlkwvykdptmtlhrpktvvvsdnlaa lqkqakkqladwrlegftltitvgghktrdgvlwqpglrvhviddehgidavfflmgrrf mlsrmdgtqtelrlkedgiwtpdayp
>3d37B (B:) mqnnsygyavsvrvggkehrhwerydidsdflipadsfdfvigrlgpeaaipdlsgesce vvidgqivmtgiigsqrhgkskgsrelslsgrdlagflvdcsapqlnvkgmtvldaakkl aapwpqikavvlkaennpalgkidiepgetvwqalthiansvglhpwlepdgtlvvggad yssppvatlcwsrtdsrcniermdiewdtdnrfsevtflaqshgrsgdsakhdlkwvykd ptmtlhrpktvvvsdadnlaalqkqakkqladwrlegftltitvgghktrdgvlwqpglr vhviddehgidavfflmgrrfmlsrmdgtqtelrlkedgiwtpdaypkkaeaarkrkgkr kgvshkgkkggkkqaetavfe
>3d37B (B:) ygyavsvrvggkehrhwerydidsdflipadsfdfvipdlsgescevvidgqivmtgiig sqrhgkskgsrelslsgrdlagflvdcsapqlnvkgmtvldaakklaapwpqikavvlka ennpalgkidiepgetvwqalthiansvglhpwlepdgtlvvggadyssppvatlcwsrt dsrcniermdiewdtdnrfsevtfllkwvykdptmtlhrpktvvvdnlaalqkqakkqla dwrlegftltitvgghktrdgvlwqpglrvhviddehgidavfflmgrrfmlsrmdgtqt elrlkedgiwtpdayp