{"id":"W1985564713","doi":"10.1016/j.jasms.2007.02.008","title":"Formation of (b<sub><i>n</i>−1</sub> + H<sub>2</sub>O) ions by collisional activation of maldi-formed peptide [M + H]<sup>+</sup> ions in a QqTOF mass spectrometer","year":2007,"lang":"en","type":"article","venue":"Journal of the American Society for Mass Spectrometry","topic":"Mass Spectrometry Techniques and Applications","field":"Chemistry","cited_by":21,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Manitoba","funders":"National Institute of General Medical Sciences; Natural Sciences and Engineering Research Council of Canada; National Institutes of Health","keywords":"Chemistry; Protonation; Mass spectrometry; Histidine; Peptide; Ion; Lysine; Residue (chemistry); Acetic acid; Amino acid; Stereochemistry; Mass spectrum; Crystallography; Chromatography; Organic chemistry; Biochemistry","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.001385101,0.000744855,0.0005290088,0.0007187134,0.0005431478,0.001135538,0.0007955218,0.0005701203,0.003507318],"category_scores_gemma":[0.001430033,0.0005978707,0.0002824261,0.000692088,0.0004253735,0.001064735,0.0009543893,0.001441967,0.001611883],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0003992462,"about_ca_system_score_gemma":0.0004911066,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0008097015,"about_ca_topic_score_gemma":0.001455935,"domain_scores_codex":[0.9992317,0.00006868672,0.00003166365,0.0002585376,0.0003199008,0.00008946859],"domain_scores_gemma":[0.9989887,0.0002289911,0.0003069665,0.00008853958,0.00026751,0.0001192879],"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":[0.0003190254,0.00005456029,0.004411768,0.0001312985,0.00003968607,0.0002087492,0.0001509871,0.0001040951,0.9847686,0.0002892684,0.0006735559,0.008848307],"study_design_scores_gemma":[0.0000414674,0.0002686141,0.021111,0.00002998761,0.00004562084,0.00145352,0.0001437954,0.002673047,0.9650018,0.0004726596,0.008722367,0.00003607977],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9076801,0.002102311,0.08067743,0.0003197911,0.0001740529,0.0002757879,0.001621003,0.001033548,0.006115926],"genre_scores_gemma":[0.8695381,0.002115104,0.108808,0.001236777,0.0001061174,0.0004837017,0.007712292,0.001020829,0.00897895],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.003507318,"threshold_uncertainty_score":0.01173311,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.00910821414988747,"score_gpt":0.2496708694175412,"score_spread":0.2405626552676537,"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."}}