{"schema_version":"4ort.packet/1","entity":{"entity_id":"sigma-factor","kg_uuid":"f03e5784-4b3c-48f7-94e4-d70d3f45b9cc","wikidata_id":"Q306436","name":"sigma factor","description":"class of proteins","type":"Thing","url":"https://4ort.xyz/entity/sigma-factor"},"status":"complete","as_of":{"copy_written_at":"2026-11-05T14:44:25Z","last_source_edit_seen":"2026-06-16T18:28:38Z","stale_possible":false,"claims_refreshed_at":"2026-10-25T17:55:50Z","source_revision":2557701131},"facts":[{"field":"P31","label":"instance of","value":"group or class of proteins","value_id":"Q84467700","value_raw":"Q84467700","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q306436#P31","source_edition":"2026-10-25T17:55:50Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[]},"trust":{"band":"unscored","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P279","label":"subclass of","value":"general transcription factor","value_id":"Q2316030","value_raw":"Q2316030","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q306436#P279","source_edition":"2026-10-25T17:55:50Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[]},"trust":{"band":"unscored","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P279","label":"subclass of","value":"transcription factor","value_id":"Q407384","value_raw":"Q407384","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q306436#P279","source_edition":"2026-10-25T17:55:50Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[{}]},"trust":{"band":"medium","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P486","label":"MeSH descriptor ID","value":"D012808","value_id":null,"value_raw":"D012808","rank":"normal","current":null,"qualifiers":[{"field":"P1810","label":"subject named as","value":"Sigma Factor"}],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q306436#P486","source_edition":"2026-10-25T17:55:50Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[]},"trust":{"band":"unscored","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P672","label":"MeSH tree code","value":"D12.776.930.800","value_id":null,"value_raw":"D12.776.930.800","rank":"normal","current":null,"qualifiers":[{"field":"P4900","label":"broader concept","value":"transcription factor"}],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q306436#P672","source_edition":"2026-10-25T17:55:50Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[]},"trust":{"band":"unscored","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P680","label":"molecular function","value":"sigma factor activity","value_id":"Q21199040","value_raw":"Q21199040","rank":"normal","current":null,"qualifiers":[{"field":"P4390","label":"mapping relation type","value":"exact match"}],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q306436#P680","source_edition":"2026-10-25T17:55:50Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[{}]},"trust":{"band":"medium","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P6366","label":"Microsoft Academic ID (discontinued)","value":"47319516","value_id":null,"value_raw":"47319516","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q306436#P6366","source_edition":"2026-10-25T17:55:50Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[]},"trust":{"band":"unscored","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P6366","label":"Microsoft Academic ID (discontinued)","value":"2910270838","value_id":null,"value_raw":"2910270838","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q306436#P6366","source_edition":"2026-10-25T17:55:50Z","edition_basis":"claims_refreshed_at","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[]},"trust":{"band":"unscored","basis":"wikidata-reference-support/2","calibrated":false}}],"unknowns":[],"omitted":{"facts":0,"reason":null},"licences":[{"source":"wikidata","source_name":"Wikidata","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"fields":["P31","P279","P486","P672","P680","P6366"]}],"routes":{"entity_page":"https://4ort.xyz/entity/sigma-factor","packet_api":"https://4ort.xyz/api/v1/entities/sigma-factor/packet","facts_jsonld":"https://4ort.xyz/entity/sigma-factor/facts.json","changes_api":"https://4ort.xyz/api/v1/knowledge/get_entity_changes?entity=sigma-factor","attention_api":"https://4ort.xyz/api/v1/knowledge/get_attention?entity=sigma-factor","wikidata":"https://www.wikidata.org/wiki/Q306436","official_website":null},"trust_rules":{"wikidata-reference-support/2":"From the references in our copy of the statement: high = it cites a source (stated in P248, or a reference URL that is not Wikipedia); medium = only 'imported from Wikimedia project' or a Wikipedia URL; unscored = our copy holds no reference (older copies dropped references, so this is not evidence that Wikidata has none). Wikidata may hold more references than our copy shows. Reference support, not a probability."},"notes":[]}