Chains and heterogens:
PDB Chain Sequences:
>1cd1A (A:) nytfrclqmssfanrswsrtdsvvwlgdlqthrwsndsatisftkpwsqgklsnqqwekl qhmfqvyrvsftrdiqelvkmmspkedypieiqlsagcemypgnasesflhvafqgkyvv rfwgtswqtvpgapswldlpikvlnadqgtsatvqmllndtcplfvrglleagksdlekq ekpvawlssvpssahghrqlvchvsgfypkpvwvmwmrgdqeqqgthrgdflpnadetwy lqatldveageeaglacrvkhsslggqdiilyw
>1cd1B (B:) iqktpqiqvysrhppengkpnilncyvtqfhpphieiqmlkngkkipkvemsdmsfskdw sfyilahteftptetdtyacrvkhdsmaepktvywdrdm
>1cd1C (C:) nytfrclqmssfanrswsrtdsvvwlgdlqthrwsndsatisftkpwsqgklsnqqwekl qhmfqvyrvsftrdiqelvkmmspkedypieiqlsagcemypgnasesflhvafqgkyvv rfwgtswqtvpgapswldlpikvlnadqgtsatvqmllndtcplfvrglleagksdlekq ekpvawlssvpssahghrqlvchvsgfypkpvwvmwmrgdqeqqgthrgdflpnadetwy lqatldveageeaglacrvkhsslggqdiilyw
>1cd1D (D:) iqktpqiqvysrhppengkpnilncyvtqfhpphieiqmlkngkkipkvemsdmsfskdw sfyilahteftptetdtyacrvkhdsmaepktvywdrdm