{"id":"W4306809517","doi":"10.1093/molbev/msac226","title":"Early Nitrogenase Ancestors Encompassed Novel Active Site Diversity","year":2022,"lang":"en","type":"article","venue":"Molecular Biology and Evolution","topic":"Metalloenzymes and iron-sulfur proteins","field":"Energy","cited_by":13,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"National Defense Science and Engineering Graduate; National Aeronautics and Space Administration; Indian Council of Agricultural Research; Science Mission Directorate; Canada's Michael Smith Genome Sciences Centre; Simons Foundation; University of Wisconsin-Madison","keywords":"Biology; Nitrogenase; Extant taxon; Evolutionary biology; Sequence (biology); Diversity (politics); Genetics; Nitrogen fixation","routes":{"ca_aff":false,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0008925003,0.000367952,0.0004922107,0.0007766507,0.0005565741,0.0008548439,0.0002852546,0.0005175128,0.001905204],"category_scores_gemma":[0.001557345,0.000217672,0.0005386437,0.0007160771,0.0005102869,0.0007344171,0.0004620661,0.0007125336,0.0005041997],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0004061658,"about_ca_system_score_gemma":0.000304697,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0004965611,"about_ca_topic_score_gemma":0.001204365,"domain_scores_codex":[0.9996881,0.00006629853,0.00002141395,0.0001410115,0.00005224702,0.00003093641],"domain_scores_gemma":[0.9993842,0.0002448593,0.0001267002,0.0001123098,0.00006540683,0.00006656558],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"theoretical_or_conceptual","study_design_scores_codex":[0.0009813802,0.0001001526,0.1709395,0.0004978995,0.0004391589,0.001793678,0.0007570736,0.01736783,0.7449626,0.009745625,0.0002923432,0.05212265],"study_design_scores_gemma":[0.0001188013,0.001025355,0.6138997,0.0002613929,0.001071204,0.01056038,0.001434418,0.1385638,0.1619479,0.03518273,0.03572003,0.0002142213],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9598357,0.0008033294,0.03469622,0.00008508149,0.0000183753,0.00002150953,0.0009808027,0.0002628113,0.003296141],"genre_scores_gemma":[0.9896997,0.0003027848,0.008397941,0.00003250376,0.000008862894,0.000009456653,0.001117387,0.00006125611,0.0003701863],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.001905204,"threshold_uncertainty_score":0.006373525,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.012318228104733,"score_gpt":0.2281618728704495,"score_spread":0.2158436447657165,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}