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Wang J, Zhao R, Chiem A. 377 Peer-Instructed Teleguidance Ultrasound in Undergraduate Medical Education: A Randomized Control Equivalence Study. Ann Emerg Med 2022. [DOI: 10.1016/j.annemergmed.2022.08.404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Gutman I, Gutman R, Sidney J, Chihab L, Mishto M, Liepe J, Chiem A, Greenbaum J, Yan Z, Sette A, Koşaloğlu-Yalçın Z, Peters B. Predicting the Success of Fmoc-Based Peptide Synthesis. ACS Omega 2022; 7:23771-23781. [PMID: 35847273 PMCID: PMC9280948 DOI: 10.1021/acsomega.2c02425] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Synthetic peptides are commonly used in biomedical science for many applications in basic and translational research. While peptide synthesis is generally easy and reliable, the chemical nature of some amino acids as well as the many steps and chemical compounds involved can render the synthesis of some peptide sequences difficult. Identification of these problematic sequences and mitigation of issues they may present can be important for the reliable use of peptide reagents in several contexts. Here, we assembled a large dataset of peptides that were synthesized using standard Fmoc chemistry and whose identity was validated using mass spectrometry. We analyzed the mass spectra to identify errors in peptide syntheses and sought to develop a computational tool to predict the likelihood that any given peptide sequence would be synthesized accurately. Our model, named Peptide Synthesis Score (PepSySco), is able to predict the likelihood that a peptide will be successfully synthesized based on its amino acid sequence.
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Affiliation(s)
- Ilanit Gutman
- Center
for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, California 92037-1387, United States
| | - Ron Gutman
- Center
for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, California 92037-1387, United States
| | - John Sidney
- Center
for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, California 92037-1387, United States
| | - Leila Chihab
- Center
for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, California 92037-1387, United States
| | - Michele Mishto
- Centre
for Inflammation Biology and Cancer Immunology (CIBCI) & Peter
Gorer Department of Immunobiology, King’s
College London, London SE1 1UL, U.K.
- Francis
Crick Institute, London NW1 1AT, U.K.
| | - Juliane Liepe
- Max-Planck-Institute
for Multidisciplinary Sciences, Göttingen 37077, Germany
| | - Anthony Chiem
- TC
Peptide Lab, San Diego, California 92121-4708, United States
| | - Jason Greenbaum
- Bioinformatics
Core Facility, La Jolla Institute for Immunology, La Jolla, California 92037-1387, United States
| | - Zhen Yan
- Bioinformatics
Core Facility, La Jolla Institute for Immunology, La Jolla, California 92037-1387, United States
| | - Alessandro Sette
- Center
for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, California 92037-1387, United States
- Department
of Medicine, University of California San
Diego, La Jolla, California 92037-1387, United States
| | - Zeynep Koşaloğlu-Yalçın
- Center
for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, California 92037-1387, United States
| | - Bjoern Peters
- Center
for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, California 92037-1387, United States
- Department
of Medicine, University of California San
Diego, La Jolla, California 92037-1387, United States
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Becker B, Chiem A, Youssefian A, Le L, Peyton M, Fox C. 224 Sonographic Measurement of Glenoid to Humeral Head Distance in Normal and Dislocated Shoulders in the Emergency Department. Ann Emerg Med 2012. [DOI: 10.1016/j.annemergmed.2012.06.202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Tamraz S, Arrhenius T, Chiem A, Forrest MJ, Gaeta FC, He YB, Lei J, Maewal A, Phillips ML, Vollger LW. Treatment of delayed-type hypersensitivity with inhibitors of the VLA-4 integrin. Springer Semin Immunopathol 1995; 16:437-41. [PMID: 7570294 DOI: 10.1007/bf00196099] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- S Tamraz
- CYTEL Corporation, San Diego, CA 92121, USA
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