Chains and heterogens:
PDB Chain Sequences:
>2vz1A (A:) asapigsaisrnnwavtcdsaqsgnecnkaidgnkdtfwhtfygangdpkpphtytidmk ttqnvnglsmlprqdgnqngwigrhevylssdgtnwgspvasgswfadsttkysnfetrp aryvrlvaiteangqpwtsiaeinvfqassytapqpglgrwgptidlpivpaaaaiepts grvlmwssyrndafggspggitltsswdpstgivsdrtvtvtkhdmfcpgismdgngqiv vtggndakktslydsssdswipgpdmqvargyqssatmsdgrvftiggswsggvfeknge vyspssktwtslpnakvnpmltadkqglyrsdnhawlfgwkkgsvfqagpstamnwyyts gsgdvksagkrqsnrgvapdamcgnavmydavkgkiltfggspdyqdsdattnahiitlg epgtspntvfasnglyfartfhtsvvlpdgstfitggqrrgipfedstpvftpeiyvpeq dtfykqnpnsivrvyhsislllpdgrvfngggglcgdcttnhfdaqiftpnylynsngnl atrpkitrtstqsvkvggritistdssiskaslirygtathtvntdqrripltltnnggn sysfqvpsdsgvalpgywmlfvmnsagvpsvastirvtq