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Glycoproteomics is a powerful yet analytically challenging research tool. Software packages aiding the interpretation of complex glycopeptide tandem mass spectra have appeared, but their relative performance remains untested. Conducted through the HUPO Human Glycoproteomics Initiative, this community study, comprising both developers and users of glycoproteomics software, evaluates solutions for system-wide glycopeptide analysis. The same mass spectrometrybased glycoproteomics datasets from human serum were shared with participants and the relative team performance for N- and O-glycopeptide data analysis was comprehensively established by orthogonal performance tests. Although the results were variable, several high-performance glycoproteomics informatics strategies were identified. Deep analysis of the data revealed key performance-associated search parameters and led to recommendations for improved 'high-coverage' and 'high-accuracy' glycoproteomics search solutions. This study concludes that diverse software packages for comprehensive glycopeptide data analysis exist, points to several high-performance search strategies and specifies key variables that will guide future software developments and assist informatics decision-making in glycoproteomics.
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http://dx.doi.org/10.1038/s41592-021-01309-x | DOI Listing |
Front Immunol
September 2025
Department of Pediatric Nephrology, Radboud University Medical Centre, Amalia Children's Hospital, Nijmegen, Netherlands.
Hemolytic uremic syndrome caused by an invasive infection (SP-HUS) is a rare and severe disease that primarily affects children under two years of age. The pathophysiology of SP-HUS remains poorly understood, and treatment is largely supportive. Complement factor H (FH) is a key regulator of the alternative pathway of the complement system.
View Article and Find Full Text PDFBlood, which forms part of the systemic circulatory system, contains proteins from various tissues and organs. Hence, blood samples are ideal vehicles for studying diseases and physiological states. Plasma is an important component of blood and is essential for clinical proteomics research.
View Article and Find Full Text PDFJ Transl Int Med
June 2025
Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, State Key Laboratory of Vascular Homeostasis and Remodeling, NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing Key Laboratory of Cardiovascular Receptors Research, Pek
Background And Objectives: N-glycosylation, a crucial post-translational modification, is well-recognized for its pivotal role in cardiovascular functions. N-acetylglucosaminyltransferase V (GnT-V) is one of the major glycosyltransferases that determine the complexity of N-glycans in N-glycosylation modification. This study aimed to explore the role of GnT-V in myocardial infarction (MI).
View Article and Find Full Text PDFProc Natl Acad Sci U S A
September 2025
Department of Experimental Pathology, Institute of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan.
Metastasis remains the leading cause of cancer-related mortality, driven by complex interactions within the tumor microenvironment (TME). Tumor-associated macrophages (TAMs) play a pivotal role in metastatic progression, yet their molecular diversity and upstream regulators remain poorly defined. Glycoprotein nonmetastatic melanoma protein B (GPNMB), overexpressed in subsets of tumors including triple-negative breast cancer (TNBC), is implicated in epithelial-mesenchymal transition (EMT) and cancer stemness.
View Article and Find Full Text PDFSci Rep
September 2025
Department of Otorhinolaryngology-Head and Neck Surgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
The incidence of oropharyngeal cancers is increasing due to human papilloma virus (HPV); however, this phenomenon does not explain the rising incidence of oral cancers, for which the reason remains unknown. These cancers are typically diagnosed at an advanced stage, which adversely affects the prognosis. Improved methods for early detection, such as blood-based biomarkers, could significantly improve patient outcomes.
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