>2P7C_1|Chain A|Strand 1 of Twelve base-pair DNA|null AAAGTATTACAT >2P7C_2|Chain B[auth C]|Strand 2 of Twelve base-pair DNA|null ATGTAATACTTT >2P7C_3|Chain C[auth B]|Penicillinase repressor|Bacillus licheniformis (1402) MKKIPQISDAELEVMKVIWKHSSINTNEVIKELSKTSTWSPKTIQTMLLRLIKKGALNHHKEGRVFVYTPNIDESDYIEVKS