Chains and heterogens:
PDB Chain Sequences:
>2d40A (A:) mgsshhhhhhgsmtdnnqnsreqfyqhisgqnltplweslhhlvpktpnancapaywnyq eirplllesggligakeavrrvlvlenpalrgqssitatlyaglqlimpgevapshrhnq salrfivegkgaftavdgertpmnegdfiltpqwrwhdhgnpgdepviwldgldlplvni lgcgfaedypeeqqpvtrkegdylpryaanmlplrhqtgnsspifnyrydrsrevlhdlt rlgdadewdgykmryvnpvtggypmpsmgaflqllpkgfasrvarttdstiyhvvegsgq viignetfsfsakdifvvptwhgvsfqttqdsvlfsfsdrpvqealglfreary
>2d40A (A:) tpnancapaywnyqeirpllvlenpalrgqssitatlyaglqlimpgevapshrhnqsal rfivegkgaftavdgertpmnegdfiltpqwrwhdhgnpgdepviwldgldlplvnilgc gfaedypqqpvtrkegdylpryaanmlplrhqtgnsspifnyrydrsrevlhdltrlgda dewdgykmryvnpvtggypmpsmgaflqllpkgfasrvarttdstiyhvvegsgqviign etfsfsakdifvvptwhgvsfqttqdsvlfsfsdrpvqealglfreary
>2d40B (B:) mgsshhhhhhgsmtdnnqnsreqfyqhisgqnltplweslhhlvpktpnancapaywnyq eirplllesggligakeavrrvlvlenpalrgqssitatlyaglqlimpgevapshrhnq salrfivegkgaftavdgertpmnegdfiltpqwrwhdhgnpgdepviwldgldlplvni lgcgfaedypeeqqpvtrkegdylpryaanmlplrhqtgnsspifnyrydrsrevlhdlt rlgdadewdgykmryvnpvtggypmpsmgaflqllpkgfasrvarttdstiyhvvegsgq viignetfsfsakdifvvptwhgvsfqttqdsvlfsfsdrpvqealglfreary
>2d40B (B:) pnancapaywnyqeirplvlenpalrgqssitatlyaglqlimpgevapshrhnqsalrf ivegkgaftavdgertpmnegdfiltpqwrwhdhgnpgdepviwldgldlplvnilgcgf aedyppvtrkegdylpryaanmlplrhqtgnsspifnyrydrsrevlhdltrlgdadewd gykmryvnpvtggypmpsmgaflqllpkgfasrvarttdstiyhvvegsgqviignetfs fsakdifvvptwhgvsfqttqdsvlfsfsdrpvqealglfrear
>2d40C (C:) mgsshhhhhhgsmtdnnqnsreqfyqhisgqnltplweslhhlvpktpnancapaywnyq eirplllesggligakeavrrvlvlenpalrgqssitatlyaglqlimpgevapshrhnq salrfivegkgaftavdgertpmnegdfiltpqwrwhdhgnpgdepviwldgldlplvni lgcgfaedypeeqqpvtrkegdylpryaanmlplrhqtgnsspifnyrydrsrevlhdlt rlgdadewdgykmryvnpvtggypmpsmgaflqllpkgfasrvarttdstiyhvvegsgq viignetfsfsakdifvvptwhgvsfqttqdsvlfsfsdrpvqealglfreary
>2d40C (C:) pktpnancapaywnyqeirlvlenpalrgqssitatlyaglqlimpgevapshrhnqsal rfivegkgaftavdgertpmnegdfiltpqwrwhdhgnpgdepviwldgldlplvnilgc gfaedypeqpvtrkegdylpryaanmlplrhqtgnsspifnyrydrsrevlhdltrlgda dewdgykmryvnpvtggypmpsmgaflqllpkgfasrvarttdstiyhvvegsgqviign etfsfsakdifvvptwhgvsfqttqdsvlfsfsdrpvqealglfreary
>2d40D (D:) mgsshhhhhhgsmtdnnqnsreqfyqhisgqnltplweslhhlvpktpnancapaywnyq eirplllesggligakeavrrvlvlenpalrgqssitatlyaglqlimpgevapshrhnq salrfivegkgaftavdgertpmnegdfiltpqwrwhdhgnpgdepviwldgldlplvni lgcgfaedypeeqqpvtrkegdylpryaanmlplrhqtgnsspifnyrydrsrevlhdlt rlgdadewdgykmryvnpvtggypmpsmgaflqllpkgfasrvarttdstiyhvvegsgq viignetfsfsakdifvvptwhgvsfqttqdsvlfsfsdrpvqealglfreary
>2d40D (D:) pktpnancapaywnyqeirlvlenpalrgqssitatlyaglqlimpgevapshrhnqsal rfivegkgaftavdgertpmnegdfiltpqwrwhdhgnpgdepviwldgldlplvnilgc gfaedyppvtrkegdylpryaanmlplrhqtgnsspifnyrydrsrevlhdltrlgdade wdgykmryvnpvtggypmpsmgaflqllpkgfasrvarttdstiyhvvegsgqviignet fsfsakdifvvptwhgvsfqttqdsvlfsfsdrpvqealglfreary