Overview
As a core branch of proteomics, modification proteomics enables systematic identification and quantification of protein post-translational modifications (PTMs). It analyzes dynamic variations in modification sites and modification abundance, and elucidates the regulatory mechanisms by which PTMs govern protein functions as well as cellular physiological and pathological processes. After proteins are translated by ribosomes, covalent chemical modifications can occur on their amino acid residues. Such modifications do not alter gene sequences yet greatly expand the functional diversity of proteins. Unlike conventional global proteomics, which only detects total protein expression levels, modification proteomics centers its research on diverse modification events.
Subcategories
PTMPTMPost-translational modifications (PTMs) refer to reversible or irreversible covalent chemical alterations on amino acid residues after protein translation. Without changing gene sequences, PTMs dynamically regulate protein structure, activity, subcellular localization and stability, and participate in signal transduction, epigenetic regulation, metabolism and pathological progression.
>> View productsEpigenomicEpigenomicEpigenomics refers to the systematic study of epigenetic modifications across the entire genome. Epigenetic modifications do not alter the primary DNA sequence, yet they regulate gene activities through chemical modifications, including DNA methylation, histone modifications and non-covalent RNA regulation. Based on high-throughput sequencing technologies, epigenomics characterizes epigenetic profiles of cells and tissues, and explores the epigenetic mechanisms underlying cell development and pathogenesis. Unlike genomics focusing on genomic DNA sequences, epigenomics centers on the regulatory effects of epigenetic modifications on gene expression.
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