Chains and heterogens:
PDB Chain Sequences:
>2zzrA (A:) mkikpvkvesienpkrflnsrlltkieveeaiekalkqlyinidyfgeeyptpatfnniy kvmdntewtngfwtgclwlayeynqdkklkniahknvlsflnrinnrialdhhdlgflyt psctaeyringdvkaleatikaadklmeryqekggfiqawgelgykehyrliidcllniq llffayeqtgdekyrqvavnhfyasannvvrddssafhtfyfdpetgeplkgvtrqgysd esswargqawgiygiplsyrkmkdyqqiilfkgmtnyflnrlpedkvsywdliftdgsgq prdtsatatavcgihemlkylpevdpdketykyamhtmlrslieqysnneliagrplllh gvyswhsgkgvdegniwgdyyylealirfykdwelyw