Chains and heterogens:
PDB Chain Sequences:
>1k70A (A:) snnalqtiinarlpgeeglwqihlqdgkisaidaqsgvmpitensldaeqglvippfvep hihldttqtagqpnwnqsgtlfegierwaerkallthddvkqrawqtlkwqiangiqhvr thvdvsdatltalkamlevkqevapwidlqivafpqegilsypngealleealrlgadvv gaiphfeftreygveslhktfalaqkydrlidvhcdeiddeqsrfvetvaalahhegmga rvtashttamhsyngaytsrlfrllkmsginfvanplvnihlqgrfdtypkrrgitrvke mlesginvcfghddvfdpwyplgtanmlqvlhmglhvcqlmgygqindglnlithhsart lnlqdygiaagnsanliilpaengfdalrrqvpvrysvrggkviastqpaqttvyleqpe aidykr
>1k70A (A:) alqtiinarlpgeeglwqihlqdgkisaidaqsgvmpitensldaeqglvippfvephih ldttqtagqpnwnqsgtlfegierwaerkallthddvkqrawqtlkwqiangiqhvrthv dvsdatltalkamlevkqevapwidlqivafpqegilsypngealleealrlgadvvgai phfeftreygveslhktfalaqkydrlidvhcdeiddeqsrfvetvaalahhegmgarvt ashttamhsyngaytsrlfrllkmsginfvanplvnihlqgrfdtypkrrgitrvkemle sginvcfghddvfdpwyplgtanmlqvlhmglhvcqlmgygqindglnlithhsartlnl qdygiaagnsanliilpaengfdalrrqvpvrysvrggkviastqpaqttvyleqpeaid ykr