{"title":"SWATH-MS Based Secretome Proteomic Analysis of Pseudomonas aeruginosa Against MRSA","authors":"Yi-Feng Zheng, Yu-Sheng Lin, Jing-Wen Huang, Kuo-Tung Tang, Cheng-Yu Kuo, Wei-Chen Wang, Han-Ju Chien, Chih-Jui Chang, Nien-Jen Hu, Chien-Chen Lai","doi":"10.1002/pmic.202300649","DOIUrl":"10.1002/pmic.202300649","url":null,"abstract":"<div>\u0000 \u0000 <p>The study uses Sequential Window Acquisition of All Theoretical Fragment Ion Mass Spectra (SWATH)-MS in conjunction with secretome proteomics to identify key proteins that <i>Pseudomonas aeruginosa</i> secretes against methicillin-resistant <i>Staphylococcus aureus</i> (MRSA). Variations in the inhibition zones indicated differences in strain resistance. Multivariate statistical methods were applied to filter the proteomic results, revealing five potential protein biomarkers, including Peptidase M23. Gene ontology (GO) analysis and sequence alignment supported their antibacterial activity. Thus, SWATH-MS provides a comprehensive understanding of the secretome of <i>P. aeruginosa</i> in its action against MRSA, guiding future antibacterial research.</p>\u0000 </div>","PeriodicalId":224,"journal":{"name":"Proteomics","volume":"25 4","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142454346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ProteomicsPub Date : 2024-10-10DOI: 10.1002/pmic.202300645
Alexia Tasoula, Nathaniel Szewczyk
{"title":"Astronaut proteomics: Japan leads the way for transformative studies in space","authors":"Alexia Tasoula, Nathaniel Szewczyk","doi":"10.1002/pmic.202300645","DOIUrl":"10.1002/pmic.202300645","url":null,"abstract":"","PeriodicalId":224,"journal":{"name":"Proteomics","volume":"24 20","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142398872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ProteomicsPub Date : 2024-10-03DOI: 10.1002/pmic.202400210
Hongmei Wang, Long Zhao, Ziyuan Yu, Ximin Zeng, Shaoping Shi
{"title":"CoNglyPred: Accurate Prediction of N-Linked Glycosylation Sites Using ESM-2 and Structural Features With Graph Network and Co-Attention","authors":"Hongmei Wang, Long Zhao, Ziyuan Yu, Ximin Zeng, Shaoping Shi","doi":"10.1002/pmic.202400210","DOIUrl":"10.1002/pmic.202400210","url":null,"abstract":"<div>\u0000 \u0000 <p>N-Linked glycosylation is crucial for various biological processes such as protein folding, immune response, and cellular transport. Traditional experimental methods for determining N-linked glycosylation sites entail substantial time and labor investment, which has led to the development of computational approaches as a more efficient alternative. However, due to the limited availability of 3D structural data, existing prediction methods often struggle to fully utilize structural information and fall short in integrating sequence and structural information effectively. Motivated by the progress of protein pretrained language models (pLMs) and the breakthrough in protein structure prediction, we introduced a high-accuracy model called CoNglyPred. Having compared various pLMs, we opt for the large-scale pLM ESM-2 to extract sequence embeddings, thus mitigating certain limitations associated with manual feature extraction. Meanwhile, our approach employs a graph transformer network to process the 3D protein structures predicted by AlphaFold2. The final graph output and ESM-2 embedding are intricately integrated through a co-attention mechanism. Among a series of comprehensive experiments on the independent test dataset, CoNglyPred outperforms state-of-the-art models and demonstrates exceptional performance in case study. In addition, we are the first to report the uncertainty of N-linked glycosylation predictors using expected calibration error and expected uncertainty calibration error.</p>\u0000 </div>","PeriodicalId":224,"journal":{"name":"Proteomics","volume":"25 5-6","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142363612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ProteomicsPub Date : 2024-09-26DOI: 10.1002/pmic.202400104
QingLan Ma, Mei Meng, XianChao Zhou, Wei Guo, KaiYan Feng, Tao Huang, Yu-Dong Cai
{"title":"Identification of Key Genes in Fetal Gut Development at Single-Cell Level by Exploiting Machine Learning Techniques","authors":"QingLan Ma, Mei Meng, XianChao Zhou, Wei Guo, KaiYan Feng, Tao Huang, Yu-Dong Cai","doi":"10.1002/pmic.202400104","DOIUrl":"10.1002/pmic.202400104","url":null,"abstract":"<div>\u0000 \u0000 <p>The study of fetal gut development is critical due to its substantial influence on immediate neonatal and long-term adult health. Current research largely focuses on microbiome colonization, gut immunity, and barrier function, alongside the impact of external factors on these phenomena. Limited research has been dedicated to the categorization of developing fetal gut cells. Our study aimed to enhance our understanding of fetal gut development by employing advanced machine-learning techniques on single-cell sequencing data. This dataset consisted of 62,849 samples, each characterized by 33,694 distinct gene features. Four feature ranking algorithms were utilized to sort features according to their significance, resulting in four feature lists. Then, these lists were fed into an incremental feature selection method to extract essential genes, classification rules, and build efficient classifiers. Several important genes were recognized by multiple feature ranking algorithms, such as FGG, MDK, RBP1, RBP2, IGFBP7, and SPON2. These features were key in differentiating specific developing intestinal cells, including epithelial, immune, mesenchymal, and vasculature cells of the colon, duo jejunum, and ileum cells. The classification rules showed special gene expression patterns on some intestinal cell types and the efficient classifiers can be useful tools for identifying intestinal cells.</p>\u0000 </div>","PeriodicalId":224,"journal":{"name":"Proteomics","volume":"24 23-24","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142338036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ProteomicsPub Date : 2024-09-24DOI: 10.1002/pmic.202400076
Matteo Calligaris, Donatella Pia Spanò, Maria Chiara Puccio, Stephan A. Müller, Simone Bonelli, Margot Lo Pinto, Giovanni Zito, Carl P. Blobel, Stefan F. Lichtenthaler, Linda Troeberg, Simone Dario Scilabra
{"title":"Development of a Proteomic Workflow for the Identification of Heparan Sulphate Proteoglycan-Binding Substrates of ADAM17","authors":"Matteo Calligaris, Donatella Pia Spanò, Maria Chiara Puccio, Stephan A. Müller, Simone Bonelli, Margot Lo Pinto, Giovanni Zito, Carl P. Blobel, Stefan F. Lichtenthaler, Linda Troeberg, Simone Dario Scilabra","doi":"10.1002/pmic.202400076","DOIUrl":"10.1002/pmic.202400076","url":null,"abstract":"<p>Ectodomain shedding, which is the proteolytic release of transmembrane proteins from the cell surface, is crucial for cell-to-cell communication and other biological processes. The metalloproteinase ADAM17 mediates ectodomain shedding of over 50 transmembrane proteins ranging from cytokines and growth factors, such as TNF and EGFR ligands, to signalling receptors and adhesion molecules. Yet, the ADAM17 sheddome is only partly defined and biological functions of the protease have not been fully characterized. Some ADAM17 substrates (e.g., HB-EGF) are known to bind to heparan sulphate proteoglycans (HSPG), and we hypothesised that such substrates would be under-represented in traditional secretome analyses, due to their binding to cell surface or pericellular HSPGs. Thus, to identify novel HSPG-binding ADAM17 substrates, we developed a proteomic workflow that involves addition of heparin to solubilize HSPG-binding proteins from the cell layer, thereby allowing their mass spectrometry detection by heparin-treated secretome (HEP-SEC) analysis. Applying this methodology to murine embryonic fibroblasts stimulated with an ADAM17 activator enabled us to identify 47 transmembrane proteins that were shed in response to ADAM17 activation. This included known HSPG-binding ADAM17 substrates (i.e., HB-EGF, CX3CL1) and 14 novel HSPG-binding putative ADAM17 substrates. Two of these, MHC-I and IL1RL1, were validated as ADAM17 substrates by immunoblotting.</p>","PeriodicalId":224,"journal":{"name":"Proteomics","volume":"24 23-24","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pmic.202400076","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142338035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}