Chains and heterogens:
PDB Chain Sequences:
>2r8aA (A:) agsglgraysgegaiaddagnvsrnpalitmfdrptfsagavyidpdvnisgtspsgrsl kadniaptawvpnmhfvapindqfgwgasitsnyglatefndtyaggsvggttdletmnl nlsgayrlnnawsfglgfnavyarakierfagdlgqlvagqimqspagqtqqgqalaata ngidsntktahlngnqwgfgwnagilyeldknnryaltyrsevkidfkgnyssdlnrafn nyglpiptatggatqsgyltlnlpemwevsgynrvdpqwaihyslaytswsqfqqlkats tsgdtlfqkhegfkdayrialgttyyyddnwtfrtgiafddspvpaqnrsisipdqdrfw lsagttyafnkdasvdvgvsymhgqsvkinegpyqfesegkawlfgtnfnyafhhhhhh
>2r8aA (A:) agsglgraysgegaiaddagnvsrnpalitmfdrptfsagavyidpdvnisgtspsgrsl kadniaptawvpnmhfvapindqfgwgasitsnyglatefndtyaggsvggttdletmnl nlsgayrlnnawsfglgfnavyarakierfagdlgqlvagqimqspagqtqqgqalaata ngidsntktahlngnqwgfgwnagilyeldknnryaltyrsevkidfltlnlpemwevsg ynrvdpqwaihyslaytswskdayrialgttyyyddnwtfrtgiafddspvpaqnrsisi pdqdrfwlsagttyafnkdasvdvgvsymhgqsvkinegpyqfesegkawlfgtnfnyaf
>2r8aB (B:) agsglgraysgegaiaddagnvsrnpalitmfdrptfsagavyidpdvnisgtspsgrsl kadniaptawvpnmhfvapindqfgwgasitsnyglatefndtyaggsvggttdletmnl nlsgayrlnnawsfglgfnavyarakierfagdlgqlvagqimqspagqtqqgqalaata ngidsntktahlngnqwgfgwnagilyeldknnryaltyrsevkidfkgnyssdlnrafn nyglpiptatggatqsgyltlnlpemwevsgynrvdpqwaihyslaytswsqfqqlkats tsgdtlfqkhegfkdayrialgttyyyddnwtfrtgiafddspvpaqnrsisipdqdrfw lsagttyafnkdasvdvgvsymhgqsvkinegpyqfesegkawlfgtnfnyafhhhhhh
>2r8aB (B:) agsglgraysgegaiaddagnvsrnpalitmfdrptfsagavyidpdvnisgtspsgrsl kadniaptawvpnmhfvapindqfgwgasitsnyglatefndtyaggsvggttdletmnl nlsgayrlnnawsfglgfnavyarakierfagdlgqlvagqimqspagqtqqgqalaata ngidsntktahlngnqwgfgwnagilyeldknnryaltyrsevkidfltlnlpemwevsg ynrvdpqwaihyslaytswskdayrialgttyyyddnwtfrtgiafddspvpaqnrsisi pdqdrfwlsagttyafnkdasvdvgvsymhgqsvkinegpyqfesegkawlfgtnfnyaf