{"id":"W2148006049","doi":"10.1021/ja0340634","title":"Direct Detection of Potassium Cations Bound to G-Quadruplex Structures by Solid-State <sup>39</sup>K NMR at 19.6 T","year":2003,"lang":"en","type":"article","venue":"Journal of the American Chemical Society","topic":"DNA and Nucleic Acid Chemistry","field":"Biochemistry, Genetics and Molecular Biology","cited_by":69,"is_retracted":false,"has_abstract":true,"ca_institutions":"Queen's University","funders":"National High Magnetic Field Laboratory","keywords":"Chemistry; Guanosine; Ion; NMR spectra database; Crystallography; Nuclear magnetic resonance spectroscopy; Solid-state nuclear magnetic resonance; Potassium; Proton NMR; Phosphate; G-quadruplex; Stereochemistry; Spectral line; Nuclear magnetic resonance; Organic chemistry; DNA","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0001606121,0.0001607843,0.0002744263,0.00000965779,0.0001166348,0.00001636119,0.0003315616,0.00008760334,0.00002045708],"category_scores_gemma":[0.0002441967,0.0001185291,0.0004377553,0.0001908539,0.0003296965,0.000005100601,0.0001151738,0.0001954416,0.000001018467],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.000127439,"about_ca_system_score_gemma":0.00009709926,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00002615566,"about_ca_topic_score_gemma":0.000001490187,"domain_scores_codex":[0.9989175,0.00005286229,0.0003544208,0.0001917431,0.0002478057,0.0002356433],"domain_scores_gemma":[0.9988543,0.00002981422,0.0005041736,0.0002968051,0.0001348738,0.0001800233],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.00006353801,0.00004763348,0.0005776877,0.00001166253,0.000134636,3.100778e-7,0.0001403438,0.0002877412,0.9699618,7.703919e-7,0.02842866,0.0003452641],"study_design_scores_gemma":[0.0002569738,0.00009176988,0.0002745776,0.000007307272,0.00005024785,0.00005538468,0.0002403554,0.00002174189,0.9685628,0.00006135069,0.03024211,0.0001354075],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.998551,0.0002466618,0.0004077656,0.0003596335,0.00004844214,0.00005982455,0.00004160867,0.000004538496,0.0002805508],"genre_scores_gemma":[0.9977413,0.0001278164,0.0006876587,0.0007957879,0.0001404088,0.000002867454,0.000007563449,0.00002115899,0.0004754064],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.001813452,"threshold_uncertainty_score":0.4833476,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.004729247197957354,"score_gpt":0.2422509434076997,"score_spread":0.2375216962097423,"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."}}