Chains and heterogens:
PDB Chain Sequences:
>4c20A (A:) hhhhhssglvprgshmasiqhprigirptidgrrqgvreslevqtmnmaksvadlisstl kypdgepvecvispstigrvpeaaashelfkksnvcatitvtpcwcygsetmdmspdiph aiwgfngterpgavylaavlashaqkgipafgiygrdvqeasdtdipedvkekllryara alatglmrdtaylsmgsvsmgiggsivnpdffqeylgmrnesvdmteftrrmdrgiydpe eferalkwvkenvkegfdhnredlvlsreekdrqwefvikmfmigrdlmvgnprlaelgf eeeavghhalvagfqgqrqwtdhfpngdfmetflntqfdwngirkpfvfatendslngvs mlfnylltntpqifadvrtywspeavkrvtghtlegraaagflhlinsgsctldgtgqat rdgkpimkpfweleesevqamlentdfppanreyfrgggfstrfltkgdmpvtmvrlnll kgvgpvlqiaegytlelpedvhhtldnrtdpgwpttwfaprltgkgafksvydvmnnwga nhgaityghigadlitlasmlripvnmhnvpeedifrpknwslfgtedlesadyracqll gplhk
>4c20A (A:) iqhprigirptidgrrqgvreslevqtmnmaksvadlisstlkypdgepvecvispstig rvpeaaashelfkksnvcatitvtpcwcygsetmdmspdiphaiwgfngterpgavylaa vlashaqkgipafgiygrdvqeasdtdipedvkekllryaraalatglmrdtaylsmgsv smgiggsivnpdffqeylgmrnesvdmteftrrmdrgiydpeeferalkwvkenvkegfd hnredlvlsreekdrqwefvikmfmigrdlmvgnprlaelgfeeeavghhalvagfqgqr qwtdhfpngdfmetflntqfdwngirkpfvfatendslngvsmlfnylltntpqifadvr tywspeavkrvtghtlegraaagflhlinsgsctldgtgqatrdgkpimkpfweleesev qamlentdfppanreyfrgggfstrfltkgdmpvtmvrlnllkgvgpvlqiaegytlelp edvhhtldnrtdpgwpttwfaprltgkgafksvydvmnnwganhgaityghigadlitla smlripvnmhnvpeedifrpknwslfgtedlesadyracqllgplhk