Chains and heterogens:
PDB Chain Sequences:
>4xbhA (A:) gickssdciksaarliqnmdataepctdffkyacggwlkrnvipetssrysnfdilrdel evilkdvlqepktedivavqkaktlyrscvnetaidsrggqpllkllpdvygwpvatqnw eqtygtswsaeksiaqlnskygkkvlinffvgtddknsmnhiihidqprlglpsrdyyec tgiykeactayvdfmiavaklirqeeglpidenqisvemnkvmelekeianattksedrn dpmllynkmtlaqiqnnfsleingkpfswsnftneimstvninipneedvvvyapeylik lkpiltkysprdlqnlmswrfimdlvsslsrtykdsrnafrkalygttsesatwrrcany vngnmenavgrlyveaafageskhvvedliaqirevfiqtlddltwmdaetkkkaeekal aikerigypddivsndnklnneylelnykedeyfeniiqnlkfsqskqlkklrekvdkde witgaaivnafyssgrnqivfpagilqppffsaqqsnslnyggigmvigheithgfddng rnfnkdgdlvdwwtqqsannfkeqsqcmvyqygnfswdlaggqhlngintlgeniadngg igqayrayqnyvkkngeekllpgidlnhkqlfflnfaqvwcgtyrpeyavnsiktdvhsp gnfriigslqnsvefseafqcpknsymnpekkcrvw
>4xbhB (B:) gickssdciksaarliqnmdataepctdffkyacggwlkrnvipetssrysnfdilrdel evilkdvlqepktedivavqkaktlyrscvnetaidsrggqpllkllpdvygwpvatqnw eqtygtswsaeksiaqlnskygkkvlinffvgtddknsmnhiihidqprlglpsrdyyec tgiykeactayvdfmiavaklirqeeglpidenqisvemnkvmelekeianattksedrn dpmllynkmtlaqiqnnfsleingkpfswsnftneimstvninipneedvvvyapeylik lkpiltkysprdlqnlmswrfimdlvsslsrtykdsrnafrkalygttsesatwrrcany vngnmenavgrlyveaafageskhvvedliaqirevfiqtlddltwmdaetkkkaeekal aikerigypddivsndnklnneylelnykedeyfeniiqnlkfsqskqlkklrekvdkde witgaaivnafyssgrnqivfpagilqppffsaqqsnslnyggigmvigheithgfddng rnfnkdgdlvdwwtqqsannfkeqsqcmvyqygnfswdlaggqhlngintlgeniadngg igqayrayqnyvkkngeekllpgidlnhkqlfflnfaqvwcgtyrpeyavnsiktdvhsp gnfriigslqnsvefseafqcpknsymnpekkcrvw