{"doi":"10.1016/j.jbiotec.2021.12.016","title":"Assessing site-specific PEGylation of TEM-1 β-lactamase with cell-free protein synthesis and coarse-grained simulation","abstract":null,"journal":"Journal of Biotechnology","year":2022,"id":614511,"datarank":0.31191623125197543,"base_score":2.0794415416798357,"endowment":2.0794415416798357,"self_citation_contribution":0.31191623125197543,"citation_network_contribution":0.0,"self_endowment_contribution":0.31191623125197543,"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":null,"is_data_producer":false,"deposit_databanks":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":null,"fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":1410873,"name":"Mehran Soltani","orcid":"0000-0002-7186-8670","position":1,"is_corresponding":false},{"id":1583559,"name":"Addison K. Smith","orcid":null,"position":2,"is_corresponding":false},{"id":1083911,"name":"J. Porter Hunt","orcid":"0000-0003-3503-8124","position":3,"is_corresponding":false},{"id":1583560,"name":"Thomas A. Knotts","orcid":null,"position":4,"is_corresponding":false},{"id":1410874,"name":"Bradley C. Bundy","orcid":"0000-0003-4438-183X","position":5,"is_corresponding":false},{"id":1583558,"name":"Emily Long Zhao","orcid":null,"position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"resolved":true,"title":"Assessing site-specific PEGylation of TEM-1 β-lactamase with cell-free protein synthesis and coarse-grained simulation","abstract":"PEGylation is a broadly used strategy to enhance the pharmacokinetic properties of therapeutic proteins. It is well established that the location and extent of PEGylation have a significant impact on protein properties. However, conventional PEGylation techniques have limited control over PEGylation sites. Emerging site-specific PEGylation technology provides control of PEG placement by conjugating PEG polymers via click chemistry reaction to genetically encoded non-canonical amino acids. Unfortunately, a method to rapidly determine the optimal PEGylation location has yet to be established. Here we seek to address this challenge. In this work, coarse-grained molecular dynamic simulations are paired with high-throughput experimental screening utilizing cell-free protein synthesis to investigate the effect of site-specific PEGylation on the two-state folder protein TEM-1 β-lactamase. Specifically, the conjugation efficiency, thermal stability, and enzymatic activity are studied for the enzyme PEGylated at several different locations. The results of this analysis confirm that the physical properties of the PEGylated protein vary considerably with PEGylation site and that traditional design recommendations are insufficient to predict favorable PEGylation sites. In this study, the best predictor of the most favorable conjugation site is coarse-grained simulation. Thus, we propose a dual combinatorial screening approach in which coarse-grained molecular simulation informs site selection for high-throughput experimental verification.","is_dataset_classified":null,"base_score":2.0794415416798357,"endowment":2.0794415416798357,"datacite_reuse_total":0,"file_count":0,"downloads":0,"views":0,"has_version_chain":false,"is_dataset":false,"is_oa":false,"pmid":"34995558","pmcid":null,"openalex_id":"https://openalex.org/W4205220097","authors":[],"funders":[{"funder_name":"National Science Foundation","grant_id":"1254148","title":"CAREER: Controlled Enzyme Biocatalyst Immobilization"}],"total_grants":1,"fwci":0.4702,"citation_percentile":0.5576494,"influential_citations":0,"citation_trend":[{"year":2023,"count":3},{"year":2024,"count":1},{"year":2025,"count":2},{"year":2026,"count":1}],"oa_status":"closed","license":"Elsevier TDM","oa_locations":[{"url":"https://api.elsevier.com/content/article/PII:S0168165622000025?httpAccept=text/xml","host_type":"publisher"},{"url":"https://api.elsevier.com/content/article/PII:S0168165622000025?httpAccept=text/plain","host_type":"publisher"},{"url":"https://doi.org/10.1016/j.jbiotec.2021.12.016","host_type":"journal"},{"url":"https://pubmed.ncbi.nlm.nih.gov/34995558","host_type":"repository"}],"fields_of_study":["Protein purification and stability","Viral Infectious Diseases and Gene Expression in Insects","Monoclonal and Polyclonal Antibodies Research","0301 basic medicine","0303 health sciences","03 medical and health sciences","Polyethylene Glycols","Proteins","beta-Lactamases"],"mesh_terms":["beta-Lactamases","Polyethylene Glycols","Proteins"],"keywords":["PEGylation","Chemistry","Protein engineering","PEG ratio","Combinatorial chemistry","Biophysics","Computer science","Biological system","Polyethylene glycol","Enzyme","Biochemistry","Biology","Proteins","beta-Lactamases","Polyethylene Glycols","Cell-free protein synthesis","Coarse-grained simulation","Non-canonical amino acid incorporation","Site-specific PEGylation","TEM-1 β-lactamase"],"sdg_mappings":[],"linked_datasets":[],"clinical_trials":[],"software_tools":[],"database_accessions":[],"source":"live","citation_network_status":"fetched"},"created_at":"2026-08-02T13:54:45.163475Z","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":[]}