Chains and heterogens:
PDB Chain Sequences:
>1q4gA (A:) pvnpccyypcqhqgicvrfgldryqcdctrtgysgpnctipeiwtwlrttlrpspsfihf llthgrwlwdfvnatfirdtlmrlvltvrsnlipspptyniahdyiswesfsnvsyytri lpsvprdcptpmgtkgkkqlpdaeflsrrfllrrkfipdpqgtnlmfaffaqhfthqffk tsgkmgpgftkalghgvdlghiygdnlerqyqlrlfkdgklkyqmlngevyppsveeapv lmhyprgippqsqmavgqevfgllpglmlyatiwlrehnrvcdllkaehptwgdeqlfqt arliligetikivieeyvqqlsgyflqlkfdpellfgaqfqyrnriamefnqlyhwhplm pdsfrvgpqdysyeqflfntsmlvdygvealvdafsrqpagrigggrnidhhilhvavdv ikesrvlrlqpfneyrkrfgmkpytsfqeltgekemaaeleelygdidalefypglllek chpnsifgesmiemgapfslkgllgnpicspeywkastfggevgfnlvktatlkklvcln tktcpyvsfhvpd
>1q4gB (B:) pvnpccyypcqhqgicvrfgldryqcdctrtgysgpnctipeiwtwlrttlrpspsfihf llthgrwlwdfvnatfirdtlmrlvltvrsnlipspptyniahdyiswesfsnvsyytri lpsvprdcptpmgtkgkkqlpdaeflsrrfllrrkfipdpqgtnlmfaffaqhfthqffk tsgkmgpgftkalghgvdlghiygdnlerqyqlrlfkdgklkyqmlngevyppsveeapv lmhyprgippqsqmavgqevfgllpglmlyatiwlrehnrvcdllkaehptwgdeqlfqt arliligetikivieeyvqqlsgyflqlkfdpellfgaqfqyrnriamefnqlyhwhplm pdsfrvgpqdysyeqflfntsmlvdygvealvdafsrqpagrigggrnidhhilhvavdv ikesrvlrlqpfneyrkrfgmkpytsfqeltgekemaaeleelygdidalefypglllek chpnsifgesmiemgapfslkgllgnpicspeywkastfggevgfnlvktatlkklvcln tktcpyvsfhvpd