has part has_part has role geroprotector bacitracin A zwitterion bacitracin Wikipedia:Bacitracin CAS:1405-87-4 Bacitracin KEGG:C01667 PMID:22114686 KEGG:D00128 CHEBI:2970 CHEBI:22684 CHEBI:28669 DrugBank:DB00626 chebi_ontology bacitracins A mixture of at least nine closely related homodetic cyclic peptides produced by Bacillus subtilis and B. licheniformis, which is particularly active against Gram-positive bacteria. antibacterial agent bacitracin A mixture