Chains and heterogens:
PDB Chain Sequences:
>2web_ (-) aasgvatntptandeeyitpvtiggttlnlnfdtgsadlwvfstelpasqqsghsvynps atgkelsgytwsisygdgssasgnvftdsvtvggvtahgqavqaaqqisaqfqqdtnndg llglafssintvqpqsqttffdtvksslaqplfavalkhqqpgvydfgfidsskytgslt ytgvdnsqgfwsfnvdsytagsqsgdgfsgiadtgttllllddsvvsqyysqvsgaqqds naggyvfdcstnlpdfsvsisgytatvpgslinygpsgdgstclggiqsnsgigfsifgd iflksqyvvfdsdgpqlgfapqa