Chains and heterogens:
PDB Chain Sequences:
>1rgyA (A:) akteqqiadivnrtitplmqeqaipgmavaiiyegkpyyftwgkadiannhpvtqqtlfe lgsvsktfngvlggdaiargeiklsdpvtkywpeltgkqwrgisllhlatytagglplqi pdditdkaallrfyqnwqpqwtpgakrlyanssiglfgalavkpsgmsyeeamtrrvlqp lklahtwitvpqseqknyawgyregkpvhvspgqldaeaygvkssvidmarwvqanmdas hvqektlqqgielaqsrywrigdmyqglgwemlnwplkadsiingsdskvalaalpavev nppvpavkaswvhktgstggfgsyvafvpeknlgivmlanksypnpvrveaawrileklq