Chains and heterogens:
PDB Chain Sequences:
>1ar71 (1:) aatsrdalpnteasgpthskeipaltavetgatnplvpsdtvqtrhvvqhrsrsessies ffargacvtimtvdnsasttnkdklfavwkitykdtvqlrrklefftysrfdmeltfvvt anftetnnghalnqvyqimyvppgapvpekwddytwqtssnpsifytygtaparisvpyv gisnayshfydgfskvplkdqsaalgdslygaaslndfgilavrvvndhnptkvtskirv ylkpkhirvwcprppravayygpgvdykdgtltplstkdltty
>1ar72 (2:) eacgysdrvlqltlgnstittqeaansvvaygrwpeylrdseanpvdqptepdvaacrfy tldtvswtkesrgwwwklpdalrdmglfgqnmyyhylgrsgytvhvqcnaskfhqgalgv favpemclagdsntttmytsyqnanpgekggtftgtftpdnnqtsparrfcpvdyllgng tllgnafvfphqiinlrtnncatlvlpyvnslsidsmvkhnnwgiailplaplnfasess peipitltiapmccefnglrnitlprlq
>1ar73 (3:) glpvmntpgsnqyltadnfqspcalpefdvtppidipgevknmmelaeidtmipfdlsat kkntmemyrvrlsdkphtddpilclslspasdprlshtmlgeilnyythwagslkftflf cgsmmatgkllvsyappgadppkkrkeamlgthviwdiglqssctmvvpwisnttyrqti ddsfteggyisvfyqtrivvplstpremdilgfvsacndfsvrllrdtthieqka