Chains and heterogens:
PDB Chain Sequences:
>3kqqA (A:) msgadrspnagaapdsapgqaavasayqrfepraylrnnyapprgdlcnpngvgpwklrc laqtfatgevsgrtlidigsgptvyqllsacshfeditmtdflevnrqelgrwlqeepga fnwsmysqhacliegkgecwqdkerqlrarvkrvlpidvhqpqplgagspaplpadalvs afcleavspdlasfqraldhittllrpgghllligaleeswylagearltvvpvseeevr ealvrsgykvrdlrtyimpahlqtgvddvkgvffawaqkvglehhhhhh
>3kqqA (A:) asayqrfepraylrnnyapprgdlcnpngvgpwklrclaqtfatgevsgrtlidigsgpt vyqllsacshfeditmtdflevnrqelgrwlqeepgafnwsmysqhacliegkgecwqdk erqlrarvkrvlpidvhqpqplgagspaplpadalvsafcleavspdlasfqraldhitt llrpgghllligaleeswylagearltvvpvseeevrealvrsgykvrdlrtyimpahlq tgvddvkgvffawaqkv
>3kqqB (B:) msgadrspnagaapdsapgqaavasayqrfepraylrnnyapprgdlcnpngvgpwklrc laqtfatgevsgrtlidigsgptvyqllsacshfeditmtdflevnrqelgrwlqeepga fnwsmysqhacliegkgecwqdkerqlrarvkrvlpidvhqpqplgagspaplpadalvs afcleavspdlasfqraldhittllrpgghllligaleeswylagearltvvpvseeevr ealvrsgykvrdlrtyimpahlqtgvddvkgvffawaqkvglehhhhhh
>3kqqB (B:) pdsapgqaavasayqrfepraylrnnyapprgdlcnpngvgpwklrclaqtfatgevsgr tlidigsgptvyqllsacshfeditmtdflevnrqelgrwlqeepgafnwsmysqhacli egkgecwqdkerqlrarvkrvlpidvhqpqplgagspaplpadalvsafcleavspdlas fqraldhittllrpgghllligaleeswylagearltvvpvseeevrealvrsgykvrdl rtyimpahlqtgvddvkgvffawaqkvg