Chains and heterogens:
PDB Chain Sequences:
>1b8uA (A:) ktpmrvavtgaagqicysllfriangdmlgkdqpvilqlleipnekaqkalqgvmmeidd cafpllagmtahadpmtafkdadvallvgarprgpgmerkdlleanaqiftvqgkaidav asrnikvlvvgnpantnayiamksapslpaknftamlrldhnralsqiaaktgkpvssie klfvwgnhsptmyadyryaqidgasvkdminddawnrdtflptvgkrgaaiidargvssa asaanaaidhihdwvlgtagkwttmgipsdgsygipegvifgfpvttengeykivqglsi dafsqerinvtlnelleeqngvqhllg