data_PRD_002431 # _pdbx_reference_molecule.prd_id PRD_002431 _pdbx_reference_molecule.name "Cyclic tetraadenosine monophosphate (cA4)" _pdbx_reference_molecule.represent_as polymer _pdbx_reference_molecule.type Polycyclic _pdbx_reference_molecule.type_evidence_code ? _pdbx_reference_molecule.class Antiviral _pdbx_reference_molecule.class_evidence_code ? _pdbx_reference_molecule.formula "C40 H48 N20 O24 P4" _pdbx_reference_molecule.formula_weight 1316.824 _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 "CRISPR-Cas systems provide bacteria with adaptive immunity against bacteriophages. Cyclic oligoadenylate signaling was found to be essential for the type III system against the jumbo phage." _pdbx_reference_molecule.description "Cyclic oligoadenylates such as c-tetraAMP were found to be novel bacterial second messengers. Antiviral in context of signalling for Type III CRISPR-Cas systems." _pdbx_reference_molecule.representative_PDB_id_code 8B0R # _pdbx_reference_entity_list.prd_id PRD_002431 _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 . # 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_002431 1 1 P A 1 "O3'" A 4 sing 1 ? ? ? PRD_002431 1 2 "O3'" A 1 P A 2 sing 1 ? ? ? PRD_002431 1 3 "O3'" A 2 P A 3 sing 1 ? ? ? PRD_002431 1 4 "O3'" A 3 P A 4 sing 1 ? ? ? # _pdbx_reference_entity_poly.prd_id PRD_002431 _pdbx_reference_entity_poly.ref_entity_id 1 _pdbx_reference_entity_poly.db_code . _pdbx_reference_entity_poly.db_name . _pdbx_reference_entity_poly.type nucleic-acid-like # _pdbx_reference_entity_sequence.prd_id PRD_002431 _pdbx_reference_entity_sequence.ref_entity_id 1 _pdbx_reference_entity_sequence.type . _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_002431 1 1 A A N Y PRD_002431 1 2 A A N Y PRD_002431 1 3 A A N Y PRD_002431 1 4 A A N Y # loop_ _pdbx_prd_audit.prd_id _pdbx_prd_audit.date _pdbx_prd_audit.processing_site _pdbx_prd_audit.action_type PRD_002431 2022-10-04 PDBE "Create molecule" PRD_002431 2023-07-12 RCSB "Initial release" PRD_002431 2023-07-03 PDBE "Other modification" #