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Related papers: Discovery of Proteomics based on Machine learning

200 papers

Mammalian cells have about 30,000-fold more protein molecules than mRNA molecules. This larger number of molecules and the associated larger dynamic range have major implications in the development of proteomics technologies. We examine…

Quantitative Methods · Quantitative Biology 2023-03-14 Michael J. MacCoss , Javier Alfaro , Meni Wanunu , Danielle A. Faivre , Nikolai Slavov

In a shotgun proteomics experiment, proteins are the most biologically meaningful output. The success of proteomics studies depends on the ability to accurately and efficiently identify proteins. Many methods have been proposed to…

Quantitative Methods · Quantitative Biology 2012-11-30 Chao Yang , Zengyou He , Weichuan Yu

Proteomics can be defined as the large-scale analysis of proteins. Due to the complexity of biological systems, it is required to concatenate various separation techniques prior to mass spectrometry. These techniques, dealing with proteins…

Determining the full complement of protein-coding genes is a key goal of genome annotation. The most powerful approach for confirming protein coding potential is the detection of cellular protein expression through peptide mass spectrometry…

Multiple technologies that measure expression levels of protein mixtures in the human body offer a potential for detection and understanding the disease. The recent increase of these technologies prompts researchers to evaluate the…

Machine Learning · Computer Science 2026-05-12 Michal Valko , Richard Pelikan , Miloš Hauskrecht

The unbounded permutations of biological molecules, including proteins and their constituent peptides, presents a dilemma in identifying the components of complex biosamples. Sequence search algorithms used to identify peptide spectra can…

Quantitative Methods · Quantitative Biology 2023-05-17 Lewis Y. Geer , Joel Lapin , Douglas J. Slotta , Tytus D. Mak , Stephen E. Stein

Large numbers of MS/MS peptide spectra generated in proteomics experiments require efficient, sensitive and specific algorithms for peptide identification. In the Open Mass Spectrometry Search Algorithm [OMSSA], specificity is calculated by…

Quantitative Methods · Quantitative Biology 2007-05-23 Lewis Y. Geer , Sanford P. Markey , Jeffrey A. Kowalak , Lukas Wagner , Ming Xu , Dawn M. Maynard , Xiaoyu Yang , Wenyao Shi , Stephen H. Bryant

Identification of nearly all proteins in a system using data-dependent acquisition (DDA) mass spectrometry has become routine for simple organisms, such as bacteria and yeast. Still, quantification of the identified proteins may be a…

Quantitative Methods · Quantitative Biology 2019-01-21 Jesse G. Meyer

Unbiased, label-free proteomics is becoming a powerful technique for measuring protein expression in almost any biological sample. The output of these measurements after preprocessing is a collection of features and their associated…

Peptide identification in mass spectrometry-based proteomics is crucial for understanding protein function and dynamics. Traditional database search methods, though widely used, rely on heuristic scoring functions and statistical…

Quantitative Methods · Quantitative Biology 2024-05-13 Yonghan Yu , Ming Li

Protein identification and profiling is critical for the advancement of cell and molecular biology as well as medical diagnostics. Although mass spectrometry and protein microarrays are commonly used for protein identification, both methods…

In the post-genome era, biologists have sought to measure the complete complement of proteins, termed proteomics. Currently, the most effective method to measure the proteome is with shotgun, or bottom-up, proteomics, in which the proteome…

Genomics · Quantitative Biology 2018-11-30 Jesse G. Meyer

Sequence coverage in MS analysis of protein digestion-derived peptides is a key issue for detailed characterization of proteins or identification at low quantities. In gel-based proteomics studies, the sequence coverage greatly depends on…

There are numerous peptides discovered through past decades, which exhibit antimicrobial and anti-cancerous tendencies. Due to these reasons, peptides are supposed to be sound therapeutic candidates. Some peptides can pose low metabolic…

Machine Learning · Computer Science 2020-12-14 Ali Raza , Hafiz Saud Arshad

Nanobodies are small antibody fragments derived from camelids that selectively bind to antigens. These proteins have marked physicochemical properties that support advanced therapeutics, including treatments for SARS-CoV-2. To realize their…

Quantitative Methods · Quantitative Biology 2021-10-18 Chris McKennan , Zhe Sang , Yi Shi

Cellular heterogeneity is important to biological processes, including cancer and development. However, proteome heterogeneity is largely unexplored because of the limitations of existing methods for quantifying protein levels in single…

Genomics · Quantitative Biology 2018-10-29 Bogdan Budnik , Ezra Levy , Guillaume Harmange , Nikolai Slavov

In this paper we develop a Bayesian statistical inference approach to the unified analysis of isobaric labelled MS/MS proteomic data across multiple experiments. An explicit probabilistic model of the log-intensity of the isobaric labels'…

Applications · Statistics 2014-07-25 Howsun Jow , Richard J. Boys , Darren J. Wilkinson

Analyzing proteins from single cells by tandem mass spectrometry (MS) has become technically feasible. While such analysis has the potential to accurately quantify thousands of proteins across thousands of single cells, the accuracy and…

Proteins are essential component of human life and their structures are important for function and mechanism analysis. Recent work has shown the potential of AI-driven methods for protein structure prediction. However, the development of…