Chains and heterogens:
PDB Chain Sequences:
>1s49A (A:) aylklkdfieeeekkprvkdtvirehnkwilkkirfqgnlntkkmlnpgklseqldregr krniynhqigtimssagirleklpivraqtdtktfheairdkidksenrqnpelhnklle ifhtiaqptlkhtygevtweqleagvnrkgaagflekknigevldsekhlveqlvrdlka grkikyyetaipknekrdvsddwqagdlvvekrprviqypeaktrlaitkvmynwvkqqp vvipgyegktplfnifdkvrkewdsfnepvavsfdtkawdtqvtskdlqligeiqkyyyk kewhkfidtitdhmtevpvitadgevyirngqrgsgqpdtsagnsmlnvltmmyafcest gvpyksfnrvarihvcgddgflitekglglkfankgmqilheagkpqkitegekmkvayr fediefcshtpvpvrwsdntsshmagrdtavilskmatrldssgergttayekavafsfl lmyswnplvrricllvlsqqpetdpskhatyyykgdpigaykdvigrnlselkrtgfekl anlnlslstlgvwtkhtskriiqdcvaigkeegnwlvkpdrlissktghlyipdkgftlq gkhyeqlql
>1s49A (A:) virehnkwilkkirfqgnlntkkmlnpgklseqldregrkrniynhqigtimssagirle klpivraqtdtktfheairdkidksenrqnpelhnklleifhtiaqptlkhtygevtweq leagvnrkgaagflekknigevldsekhlveqlvrdlkagrkikyyetaipknekrdvsd dwqagdlvvekrprviqypeaktrlaitkvmynwvkqqpvvipgyegktplfnifdkvrk ewdsfnepvavsfdtkawdtqvtskdlqligeiqkyyykkewhkfidtitdhmtevpvit adgevyirngqrgsgqpdtsagnsmlnvltmmyafcestgvpyksfnrvarihvcgddgf litekglglkfankgmqilheagkpqkitegekmkvayrfediefcshtpvpvrwsdnts shmagrdtavilskmatrldssgergttayekavafsfllmyswnplvrricllvlsqqp etdpskhatyyykgdpigaykdvigrnlselkrtgfeklanlnlslstlgvwtkhtskri iqdcvaigkeegnwlvkpdrlissktghlyipdkgftlqgkhyeqlql