{"doi":"10.1101/2020.05.18.102327","title":"O-Pair Search with MetaMorpheus for O-glycopeptide Characterization","abstract":"Abstract We report O-Pair Search, a new approach to identify O-glycopeptides and localize O-glycosites. Using paired collision- and electron-based dissociation spectra, O-Pair Search identifies O-glycopeptides using an ion-indexed open modification search and localizes O-glycosites using graph theory and probability-based localization. O-Pair Search reduces search times more than 2,000-fold compared to current O-glycopeptide processing software, while defining O-glycosite localization confidence levels and generating more O-glycopeptide identifications. O-Pair Search is freely available: https://github.com/smith-chem-wisc/MetaMorpheus .","journal":"bioRxiv (Cold Spring Harbor Laboratory)","year":2020,"id":121210,"datarank":0.0,"base_score":0.0,"endowment":0.0,"self_citation_contribution":0.0,"citation_network_contribution":0.0,"self_endowment_contribution":0.0,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":7,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.9557,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2020-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":218283,"name":"Nicholas M. Riley","orcid":"0000-0002-1536-2966","position":1,"is_corresponding":false},{"id":267556,"name":"Michael R. Shortreed","orcid":"0000-0003-4626-0863","position":2,"is_corresponding":false},{"id":218284,"name":"Carolyn R. Bertozzi","orcid":"0000-0003-4482-2754","position":3,"is_corresponding":false},{"id":267557,"name":"Lloyd M. Smith","orcid":"0000-0002-6652-8639","position":4,"is_corresponding":false},{"id":560377,"name":"Lei Lü","orcid":"0000-0001-7097-1505","position":0,"is_corresponding":true}],"reference_count":45,"raw_metadata":null,"created_at":"2026-07-18T23:14:42.734024Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}