Chains and heterogens:
PDB Chain Sequences:
>1kvqA (A:) mrvlvtggsgyigshtcvqllqnghdviildnlcnskrsvlpvierlggkhptfvegdir nealmteilhdhaidtvihfaglkavgesvqkpleyydnnvngtlrlisamraanvknfi fssaatvygdnpkipyvesfptgtpqspygksklmveqiltdlqkaqpdwsiallryfnp vgahpsgdmgedpqgipnnlmpyiaqvavgrrdslaifgndyptedgtgvrdyihvmdla dghvvameklankpgvhiynlgagvgnsvldvvnafskacgkpvnyhfaprregdlpayw adaskadrelnwrvtrtldemaqdtwhwqsrhpqgypd