data_PRD_000225 # _pdbx_reference_molecule.prd_id PRD_000225 _pdbx_reference_molecule.name GE2270a _pdbx_reference_molecule.represent_as polymer _pdbx_reference_molecule.type Thiopeptide _pdbx_reference_molecule.type_evidence_code ? _pdbx_reference_molecule.class Antibiotic _pdbx_reference_molecule.class_evidence_code ? _pdbx_reference_molecule.formula "C56 H58 N15 O10 S6" _pdbx_reference_molecule.formula_weight 1293.544 _pdbx_reference_molecule.chem_comp_id ? _pdbx_reference_molecule.release_status REL _pdbx_reference_molecule.replaces ? _pdbx_reference_molecule.replaced_by ? _pdbx_reference_molecule.compound_details ;GEA2270A is a member of a sulphur-rich heterocyclic peptides class. All members share a macrocylic core, consisting of a nitrogen containing, six-membered ring central to dehydroamino acids and a subset of five member ring structures including thiazoles, thiazolines and oxazoles. Post translational maturation of thiazole and oxazole containing antibiotics involves the enzymic condensation of a Cys or Ser with the alpha- carbonyl of the preceding amino acid to form a thioether or ether bond, then dehydration to form a double bond with the alpha-amino nitrogen. Thiazoline or oxazoline ring are dehydrogenated to form thiazole or oxazole rings. In addition cross-linking of a Ser and a Cys-Ser pair usually separated by 7 or 8 residues along the peptide chain produce a pyridinyl ring. The Ser residues are dehydrated to didehydroalanines, then bonded between their beta carbons. The alpha carbonyl of the Cys condenses with alpha carbon of the first Ser to form a pyridinyl ring. The ring may be mutiply dehydrogenated to form a pyridine ring with loss of the amino nitrogen of the first Ser. Several isomers are produced. The structural differences between them lie in the extent of the modifications, methylation, methoxylation, and oxidation of the thiazole and oxazole rings, and methylation of asparagine. The amidation of Pro-14 probably does not occur by the same mechanism, oxidative cleavage of glycine, as in eukaryotes. ; _pdbx_reference_molecule.description ;GEA2270A IS A THIOPEPTIDE CONSISTING OF ONE PYRIDINE, ONE OXAZOLE AND FIVE THIAZOLE RINGS. THE OBSERVED C-TERMINAL AMINO GROUP NH2(15) IS LIKELY TO BE A POST-TRANSLATIONAL DECARBOXYLATED REMNANT OF A SER C-TERMINAL RESIDUE. ; _pdbx_reference_molecule.representative_PDB_id_code 1d8t # _pdbx_reference_entity_list.prd_id PRD_000225 _pdbx_reference_entity_list.ref_entity_id 1 _pdbx_reference_entity_list.component_id 1 _pdbx_reference_entity_list.type polymer _pdbx_reference_entity_list.details "PEPTIDE LIKE SEQUENCE RESIDUES 1 TO 15" # loop_ _pdbx_reference_entity_poly_link.prd_id _pdbx_reference_entity_poly_link.ref_entity_id _pdbx_reference_entity_poly_link.link_id _pdbx_reference_entity_poly_link.atom_id_1 _pdbx_reference_entity_poly_link.comp_id_1 _pdbx_reference_entity_poly_link.entity_seq_num_1 _pdbx_reference_entity_poly_link.atom_id_2 _pdbx_reference_entity_poly_link.comp_id_2 _pdbx_reference_entity_poly_link.entity_seq_num_2 _pdbx_reference_entity_poly_link.value_order _pdbx_reference_entity_poly_link.component_id _pdbx_reference_entity_poly_link.details _pdbx_reference_entity_poly_link.insert_code_1 _pdbx_reference_entity_poly_link.insert_code_2 PRD_000225 1 1 CA SER 1 C BB9 10 sing 1 ? ? ? PRD_000225 1 2 C SER 1 SG BB9 2 sing 1 ? ? ? PRD_000225 1 3 C SER 1 N BB9 2 doub 1 ? ? ? PRD_000225 1 4 CB SER 1 CB MH6 11 sing 1 ? ? ? PRD_000225 1 5 C BB9 2 N MEN 3 sing 1 ? ? ? PRD_000225 1 6 C MEN 3 SG BB6 4 sing 1 ? ? ? PRD_000225 1 7 C MEN 3 N BB6 4 doub 1 ? ? ? PRD_000225 1 8 C BB6 4 N VAL 5 sing 1 ? ? ? PRD_000225 1 9 C VAL 5 SG BB7 6 sing 1 ? ? ? PRD_000225 1 10 C VAL 5 N BB7 6 doub 1 ? ? ? PRD_000225 1 11 C BB7 6 N GLY 7 sing 1 ? ? ? PRD_000225 1 12 C GLY 7 N BB8 8 sing 1 ? ? ? PRD_000225 1 13 C BB8 8 N BB9 9 doub 1 ? ? ? PRD_000225 1 14 C BB8 8 SG BB9 9 sing 1 ? ? ? PRD_000225 1 15 C BB9 9 SG BB9 10 sing 1 ? ? ? PRD_000225 1 16 C BB9 9 N BB9 10 doub 1 ? ? ? PRD_000225 1 17 C BB9 10 N MH6 11 doub 1 ? ? ? PRD_000225 1 18 C MH6 11 SG BB9 12 sing 1 ? ? ? PRD_000225 1 19 C MH6 11 N BB9 12 doub 1 ? ? ? PRD_000225 1 20 C BB9 12 OG SER 13 sing 1 ? ? ? PRD_000225 1 21 C BB9 12 N SER 13 doub 1 ? ? ? PRD_000225 1 22 C SER 13 N PRO 14 sing 1 ? ? ? PRD_000225 1 23 C PRO 14 N NH2 15 sing 1 ? ? ? # _pdbx_reference_entity_poly.prd_id PRD_000225 _pdbx_reference_entity_poly.ref_entity_id 1 _pdbx_reference_entity_poly.db_code Q7M0J8 _pdbx_reference_entity_poly.db_name UNP _pdbx_reference_entity_poly.type peptide-like # _pdbx_reference_entity_sequence.prd_id PRD_000225 _pdbx_reference_entity_sequence.ref_entity_id 1 _pdbx_reference_entity_sequence.type peptide-like _pdbx_reference_entity_sequence.NRP_flag N # loop_ _pdbx_reference_entity_poly_seq.prd_id _pdbx_reference_entity_poly_seq.ref_entity_id _pdbx_reference_entity_poly_seq.num _pdbx_reference_entity_poly_seq.mon_id _pdbx_reference_entity_poly_seq.parent_mon_id _pdbx_reference_entity_poly_seq.hetero _pdbx_reference_entity_poly_seq.observed PRD_000225 1 1 SER SER N Y PRD_000225 1 2 BB9 CYS N Y PRD_000225 1 3 MEN ASN N Y PRD_000225 1 4 BB6 CYS N Y PRD_000225 1 5 VAL VAL N Y PRD_000225 1 6 BB7 CYS N Y PRD_000225 1 7 GLY GLY N Y PRD_000225 1 8 BB8 PHE N Y PRD_000225 1 9 BB9 CYS N Y PRD_000225 1 10 BB9 CYS N Y PRD_000225 1 11 MH6 SER N Y PRD_000225 1 12 BB9 CYS N Y PRD_000225 1 13 SER SER N Y PRD_000225 1 14 PRO PRO N Y PRD_000225 1 15 NH2 ? N Y # loop_ _pdbx_reference_entity_src_nat.prd_id _pdbx_reference_entity_src_nat.ref_entity_id _pdbx_reference_entity_src_nat.ordinal _pdbx_reference_entity_src_nat.taxid _pdbx_reference_entity_src_nat.organism_scientific _pdbx_reference_entity_src_nat.source _pdbx_reference_entity_src_nat.db_code _pdbx_reference_entity_src_nat.db_name _pdbx_reference_entity_src_nat.strain PRD_000225 1 1 35762 "Planobispora rosea" ? 440127 NADB ? PRD_000225 1 2 35762 "Planobispora rosea" ? Q7M0J8 UniProt ? # loop_ _pdbx_prd_audit.prd_id _pdbx_prd_audit.date _pdbx_prd_audit.processing_site _pdbx_prd_audit.action_type PRD_000225 2012-02-03 RCSB "Create molecule" PRD_000225 2012-07-09 PDBE "Other modification" PRD_000225 2012-12-12 RCSB "Initial release" PRD_000225 2013-06-03 RCSB "Other modification" PRD_000225 2017-05-04 RCSB "Other modification" PRD_000225 2023-09-20 PDBE "Modify audit" #