Chains and heterogens:
PDB Chain Sequences:
>4tvfA (A:) mhhhhhhgkpipnpllgldstenlyfqgidpftmsgdgsppihtrrqgfdpadelraagt ltkisigsgadaettwlaaghavvrqvlgdhkrfstrrrfdrrdeiggtgvfrprelvgn lmdydppehtrlrhlltpgftqrrmrrlaprieeivtdrldameqagppadlielfadev pgavlceligvprddqamflqlchrhldaslsarkraaageafarylvammarerkdpgd gfigsivaehgdtitdeelrgvcvqlmlagddnvsgmiglgvlallrhpeqiaalrgddq sadravdeliryltvpyaptprtavedvmvadqvikegetvlcslpmanrdrallpdadr ldvtrtpvphvafghgihhclgaaltrlqlriaytalwrrfpalqladpaqeimfrtstp aygltsllvaw
>4tvfA (A:) sppihtrrqgfdpadelraagtltkistwlaaghavvrqvlgdhkrfstrrelvgnlmdy dppehtrlrhlltpgftqrrmrrlaprieeivtdrldameqagppadlielfadevpgav lceligvprddqamflqlchrhafarylvammarerkdpgdgfigsivaehgdtitdeel rgvcvqlmlagddnvsgmiglgvlallrhpeqiaalrgddqsadravdeliryltvpyap tprtavedvmvadqvikegetvlcslpmanrdrallpdadrldvtrtpvphvafghgihh clgaaltrlqlriaytalwrrfpalqladpaqeimfrtstpaygltsllvaw