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Proteomics is the large-scale analysis of the proteins. The common method for identifying proteins and characterising their amino acid sequences is to digest the proteins into peptides, analyse the peptides using mass spectrometry and…

Computational Engineering, Finance, and Science · Computer Science 2019-02-05 Samaneh Azari , Bing Xue , Mengjie Zhang , Lifeng Peng

De novo peptide sequencing algorithms have been widely used in proteomics to analyse tandem mass spectra (MS/MS) and assign them to peptides, but quality-control methods to evaluate the confidence of de novo peptide sequencing are lagging…

Neural and Evolutionary Computing · Computer Science 2019-08-22 Samaneh Azari , Bing Xue , Mengjie Zhang , Lifeng Peng

Tandem mass spectrometry has played a pivotal role in advancing proteomics, enabling the high-throughput analysis of protein composition in biological tissues. Many deep learning methods have been developed for \emph{de novo} peptide…

Quantitative Methods · Quantitative Biology 2024-11-01 Jingbo Zhou , Shaorong Chen , Jun Xia , Sizhe Liu , Tianze Ling , Wenjie Du , Yue Liu , Jianwei Yin , Stan Z. Li

Tandem mass spectrometry has played a pivotal role in advancing proteomics, enabling the analysis of protein composition in biological samples. Despite the development of various deep learning methods for identifying amino acid sequences…

Quantitative Methods · Quantitative Biology 2024-03-18 Jun Xia , Shaorong Chen , Jingbo Zhou , Tianze Ling , Wenjie Du , Sizhe Liu , Stan Z. Li

In Proteomics, only the de novo peptide sequencing approach allows a partial amino acid sequence of a peptide to be found from a MS/MS spectrum. In this article a preliminary work is presented to discover a complete protein sequence from…

Quantitative Methods · Quantitative Biology 2008-12-18 Jean-Charles Boisson , Laetitia Jourdan , El-Ghazali Talbi , Christian Rolando

De novo peptide sequencing aims to recover amino acid sequences of a peptide from tandem mass spectrometry (MS) data. Existing approaches for de novo analysis enumerate MS evidence for all amino acid classes during inference. It leads to…

Quantitative Methods · Quantitative Biology 2022-03-25 Yan Yang , Zakir Hossain , Khandaker Asif , Liyuan Pan , Shafin Rahman , Eric Stone

De novo peptide sequencing from mass spectrometry data is an important method for protein identification. Recently, various deep learning approaches were applied for de novo peptide sequencing and DeepNovoV2 is one of the represetative…

Quantitative Methods · Quantitative Biology 2022-03-18 Cheng Ge , Yi Lu , Jia Qu , Liangxu Xie , Feng Wang , Hong Zhang , Ren Kong , Shan Chang

De novo peptide sequencing is a critical task in proteomics. However, the performance of current deep learning-based methods is limited by the inherent complexity of mass spectrometry data and the heterogeneous distribution of noise…

Machine Learning · Computer Science 2025-06-02 Zijie Qiu , Jiaqi Wei , Xiang Zhang , Sheng Xu , Kai Zou , Zhi Jin , Zhiqiang Gao , Nanqing Dong , Siqi Sun

Personalized cancer vaccines are envisioned as the next generation rational cancer immunotherapy. The key step in developing personalized therapeutic cancer vaccines is to identify tumor-specific neoantigens that are on the surface of tumor…

Machine Learning · Computer Science 2019-05-23 Rui Qiao , Ngoc Hieu Tran , Lei Xin , Baozhen Shan , Ming Li , Ali Ghodsi

{\it De novo} protein sequencing is essential for understanding cellular processes that govern the function of living organisms and all post-translational events and other sequence modifications that occur after a protein has been…

Biological Physics · Physics 2015-09-17 P. Boynton , M. Di Ventra

Tandem Mass Spectrometry is a cornerstone technique for identifying unknown small molecules in fields such as metabolomics, natural product discovery and environmental analysis. However, certain aspects, such as the probabilistic…

Artificial Intelligence · Computer Science 2026-01-19 Laura Mismetti , Marvin Alberts , Andreas Krause , Mara Graziani

As in many other scientific domains, we face a fundamental problem when using machine learning to identify proteins from mass spectrometry data: large ground truth datasets mapping inputs to correct outputs are extremely difficult to…

Proteins are the main workhorses of biological functions in a cell, a tissue, or an organism. Identification and quantification of proteins in a given sample, e.g. a cell type under normal/disease conditions, are fundamental tasks for the…

Computational Engineering, Finance, and Science · Computer Science 2017-10-10 Ngoc Hieu Tran , Zachariah Levine , Lei Xin , Baozhen Shan , Ming Li

Peptide de novo sequencing is a method used to reconstruct amino acid sequences from tandem mass spectrometry data without relying on existing protein sequence databases. Traditional deep learning approaches, such as Casanovo, mainly…

Machine Learning · Computer Science 2025-07-16 Chi-en Amy Tai , Alexander Wong

Peptide sequencing from mass spectrometry data is a key step in proteome research. Especially de novo sequencing, the identification of a peptide from its spectrum alone, is still a challenge even for state-of-the-art algorithmic…

Data Structures and Algorithms · Computer Science 2011-03-29 Sandro Andreotti , Gunnar W. Klau , Knut Reinert

Mass spectrometry provides a high-throughput way to identify proteins in biological samples. In a typical experiment, proteins in a sample are first broken into their constituent peptides. The resulting mixture of peptides is then subjected…

Applications · Statistics 2010-11-10 Qunhua Li , Michael J. MacCoss , Matthew Stephens

In recent years, there has been an explosion of research on the application of deep learning to the prediction of various peptide properties, due to the significant development and market potential of peptides. Molecular dynamics has…

Biomolecules · Quantitative Biology 2023-07-19 Zihan Liu , Jiaqi Wang , Yun Luo , Shuang Zhao , Wenbin Li , Stan Z. Li

Mass spectrometry is the dominant technology in the field of proteomics, enabling high-throughput analysis of the protein content of complex biological samples. Due to the complexity of the instrumentation and resulting data, sophisticated…

We propose a new method for shape recognition and retrieval based on dynamic programming. Our approach uses the dynamic programming algorithm to compute the optimal score and to find the optimal alignment between two strings. First, each…

Computer Vision and Pattern Recognition · Computer Science 2019-05-01 Noreddine Gherabi , Bahaj Mohamed

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
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