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Homologues are also found in Gene Transfer Agents (GTA) [[cite:PUB00055430]], including ORFg2 (RCAP_rcc01683) of the GTA of Rhodobacter capsulatus (Rhodopseudomonas capsulata) [see Fig.1, in 4].","domain_architectures":36,"interpro_id":"","known_evidence_count":null,"matches":8176,"name":"Terminase large subunit, T4likevirus-type, N-terminal","partial_evidence_count":null,"pfam_id":"PF03237","proteins":8175,"proteomes":6717,"short_name":"Terminase_6N","source_url":"https://www.ebi.ac.uk/interpro/api/entry/pfam/PF03237","structures":17,"taxa":12187,"unknown_status":"EX_DUF"},"inputs":{"cross_mech":"cross-mech-duf-examples-2026-10-10","members":"pfam-uniprot-uniref90-2026-10-07","protein_examples":"duf-protein-examples-2026-10-13","worklist":"interpro-pfam-duf-2026-10-10"},"members":[],"metadata":{"curation_status":"SEEDED","local_source":"source/data/families/PF03237.yaml","record":{"characterization_status":"UNSCORED","counters":{"alphafold_models":3902,"domain_architectures":36,"matches":8176,"proteins":8175,"proteomes":6717,"structures":17,"taxa":12187},"curation_status":"SEEDED","description":"This entry represents the N-terminal domain of terminase large subunits found in a variety of the Caudovirales and prophage regions of bacterial genomes. It includes the terminase large subunit of Bacteriophage T4 (terminase gene 17, Gp17) [[cite:PUB00082635],[cite:PUB00095683]]. Homologues are also found in Gene Transfer Agents (GTA) [[cite:PUB00055430]], including ORFg2 (RCAP_rcc01683) of the GTA of Rhodobacter capsulatus (Rhodopseudomonas capsulata) [see Fig.1, in 4].","id":"Pfam:PF03237","name":"Terminase large subunit, T4likevirus-type, N-terminal","pfam_id":"PF03237","provenance":{"generated_at":"2026-10-10T07:44:21.614711Z","path":"data/worklists/interpro-pfam-duf-2026-10-10.json","sha256":"17fb625876c9326ed284263a47bcd84e0d7844a31c040dc06cd2260c36f1c383","snapshot_id":"interpro-pfam-duf-2026-10-10","source_url":"https://www.ebi.ac.uk/interpro/api/entry/pfam/"},"seed_status":"EX_DUF","short_name":"Terminase_6N","source_url":"https://www.ebi.ac.uk/interpro/api/entry/pfam/PF03237"},"source":{"commit":"c8155abfcf881ad8662936343deb81e604e3a194","path":"data/families/PF03237.yaml","repository":"https://github.com/CultureBotAI/DUFMech","sha256":"3371fc582dbfec15af41b031b0abfed21a66b1372ae5267cd98305eb3637639a"}},"protein_examples":{"candidate_count":1,"discovery_scanned":true,"example_count":1,"examples":[{"evidence_scope":"FAMILY_MEMBERSHIP_NOT_FUNCTION","organism":"Bacillus subtilis (strain 168)","origins":[{"cited_uniprot_accession":"","commit":"70edd6f8458845f7d7783ac4f416df519f5e1de6","link_basis":["canonical_example_family_classification","ptm_own_pfam_record_example"],"mech":"ProteinTraitsMech","path":"data/traits/sequence/domain/pfam/terminase-6n-pf03237.yaml","qualification_status":"LEGACY_OR_UNSPECIFIED","record_id":"Pfam:PF03237","section":"canonical_examples","url":"https://github.com/CultureBotAI/proteintraitsmech/blob/70edd6f8458845f7d7783ac4f416df519f5e1de6/data/traits/sequence/domain/pfam/terminase-6n-pf03237.yaml"},{"cited_uniprot_accession":"","commit":"70edd6f8458845f7d7783ac4f416df519f5e1de6","link_basis":["canonical_example_family_classification"],"mech":"ProteinTraitsMech","path":"data/traits/structure/homologous_superfamily/cath/3-30-420-240-3-30-420-240.yaml","qualification_status":"NOT_ASSESSED","record_id":"CATH:3.30.420.240","section":"canonical_examples","url":"https://github.com/CultureBotAI/proteintraitsmech/blob/70edd6f8458845f7d7783ac4f416df519f5e1de6/data/traits/structure/homologous_superfamily/cath/3-30-420-240-3-30-420-240.yaml"}],"pfam_ids":["PF03237"],"protein_name":"SPbeta prophage-derived uncharacterized protein YonF","registry_status":"NOT_IN_REGISTRY","reviewed":true,"sequence":"MTSHKNFTTDRNKHSRGINIFKKGNNFKKKSKSERLMDGIGAWTSFYRANPHRFVKEYLGITLKLFQCILIYMMVHNHYFMYLASRGQGKTWLTSVYCCVQAILFPGTKIVIASGTKGQAREVIEKIDDLRKESPNLRREIEDLKTSTNDAKVEFHNGSWIKIVASNDGARSKRANLLIVDEFRMVDFEIISKVLRKFLTAPRSPKYLEKEEYAHLKERNKEIYLSSCWYKVHWSFNRFITYYNAMMKGSKYFVCGLPYQIAIKEGLLDKDQVRDEMAEEDFDPIGWSMEMEALWFGESEKAYFKFEDIEKNRKLASPLFPPDYYSLIKDSNFKYEGKKPGEIRLVSNDIAGMAGKDNDASVYTVFRLIPNSNGYDRHIVYMESIVGGHTGTQATRIRQIYEDYDCDYIVLDTQSIGLGVYDALCQPLYDKERAKEYEPFSCINDERMAARCTYQNAEKVIYSIKGNAQLNSEIAVLLKDGFKRGKIKIPINENEGKEYLKRFKGYEGLSPEVKGKFLSSYAQITLLINEMINLEAEYSDNGQVKLKEPKSKRKDRYSSVAYGNYIATVLERQLNKQTEYDVEDELVYF","sequence_length":589,"sequence_origin":"UNIPROT_FETCH","sequence_sha256":"eba4092774f3e9e24ccca9651ed24c43d54b64c996dc51c8fe1bf08b0feefc5d","sequence_version":1,"source_url":"https://rest.uniprot.org/uniprotkb/O31952.json","taxon_id":"224308","uniprot_accession":"O31952","uniprot_release":"2026_03"}],"pfam_id":"PF03237","short_name":"Terminase_6N","status":"HAS_SEQUENCE_EXAMPLE","unresolved":[]}}