Chains and heterogens:
PDB Chain Sequences:
>1kyaA (A:) gigpvadltitnaavspdgfsrqavvvnggtpgplitgnmgdrfqlnvidnltnhtmlks tsihwhgffqkgtnwadgpafinqcpissghsflydfqvpdqagtfwyhshlstqycdgl rgpfvvydpndpaadlydvdnddtvitlvdwyhvaaklgpafplgadatlingkgrspst ttadlsvisvtpgkryrfrlvslscdpnytfsidghnmtiietdsintaplvvdsiqifa aqrysfvleanqavdnywiranpnfgnvgftgginsailrydgaaaveptttqttstapl nevnlhplvatavpgspvaggvdlainmafnfngtnffingasftpptvpvllqiisgaq naqdllpsgsvyslpsnadieisfpataaapgaphpfhlhghafavvrsagstvynydnp ifrdvvstgtpaagdnvtirfrtdnpgpwflhchidfhleagfavvfaedipdvasanpv pqawsdlcptydardpsdq
>1kyaB (B:) gigpvadltitnaavspdgfsrqavvvnggtpgplitgnmgdrfqlnvidnltnhtmlks tsihwhgffqkgtnwadgpafinqcpissghsflydfqvpdqagtfwyhshlstqycdgl rgpfvvydpndpaadlydvdnddtvitlvdwyhvaaklgpafplgadatlingkgrspst ttadlsvisvtpgkryrfrlvslscdpnytfsidghnmtiietdsintaplvvdsiqifa aqrysfvleanqavdnywiranpnfgnvgftgginsailrydgaaaveptttqttstapl nevnlhplvatavpgspvaggvdlainmafnfngtnffingasftpptvpvllqiisgaq naqdllpsgsvyslpsnadieisfpataaapgaphpfhlhghafavvrsagstvynydnp ifrdvvstgtpaagdnvtirfrtdnpgpwflhchidfhleagfavvfaedipdvasanpv pqawsdlcptydardpsdq
>1kyaC (C:) gigpvadltitnaavspdgfsrqavvvnggtpgplitgnmgdrfqlnvidnltnhtmlks tsihwhgffqkgtnwadgpafinqcpissghsflydfqvpdqagtfwyhshlstqycdgl rgpfvvydpndpaadlydvdnddtvitlvdwyhvaaklgpafplgadatlingkgrspst ttadlsvisvtpgkryrfrlvslscdpnytfsidghnmtiietdsintaplvvdsiqifa aqrysfvleanqavdnywiranpnfgnvgftgginsailrydgaaaveptttqttstapl nevnlhplvatavpgspvaggvdlainmafnfngtnffingasftpptvpvllqiisgaq naqdllpsgsvyslpsnadieisfpataaapgaphpfhlhghafavvrsagstvynydnp ifrdvvstgtpaagdnvtirfrtdnpgpwflhchidfhleagfavvfaedipdvasanpv pqawsdlcptydardpsdq
>1kyaD (D:) gigpvadltitnaavspdgfsrqavvvnggtpgplitgnmgdrfqlnvidnltnhtmlks tsihwhgffqkgtnwadgpafinqcpissghsflydfqvpdqagtfwyhshlstqycdgl rgpfvvydpndpaadlydvdnddtvitlvdwyhvaaklgpafplgadatlingkgrspst ttadlsvisvtpgkryrfrlvslscdpnytfsidghnmtiietdsintaplvvdsiqifa aqrysfvleanqavdnywiranpnfgnvgftgginsailrydgaaaveptttqttstapl nevnlhplvatavpgspvaggvdlainmafnfngtnffingasftpptvpvllqiisgaq naqdllpsgsvyslpsnadieisfpataaapgaphpfhlhghafavvrsagstvynydnp ifrdvvstgtpaagdnvtirfrtdnpgpwflhchidfhleagfavvfaedipdvasanpv pqawsdlcptydardpsdq