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Related Concept Videos

Protein Kinases and Phosphatases02:54

Protein Kinases and Phosphatases

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Proteins undergo chemical modifications that trigger changes in the charge, structure, and conformation of the proteins. Phosphorylation, acetylation, glycosylation, nitrosylation, ubiquitination, lipidation, methylation, and proteolysis are various protein modifications that regulate protein activity. Such modifications are usually enzyme-driven.
Protein kinases
Many proteins in the cell are regulated by phosphorylation, the addition of a phosphate group. A family of enzymes called kinases...
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Phosphorylation01:02

Phosphorylation

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The addition or removal of phosphate groups from proteins is the most common chemical modification that regulates cellular processes. These modifications can affect the structure, activity, stability, and localization of proteins within cells as well as their interactions with other proteins.
During phosphorylation, protein kinases transfer the terminal phosphate group of ATP to specific amino acid side chains of substrate proteins. Serine, threonine, and tyrosine are the most commonly...
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Related Experiment Video

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Oligopeptide Competition Assay for Phosphorylation Site Determination
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Sequence- and Structure-Based Analysis of Tissue-Specific Phosphorylation Sites.

Nermin Pinar Karabulut1, Dmitrij Frishman1,2,3

  • 1Department of Genome Oriented Bioinformatics, Technische Universität München, Freising, Germany.

Plos One
|June 23, 2016
PubMed
Summary
This summary is machine-generated.

This study reveals tissue-specific patterns in phosphorylation, a key cellular process. Kinase activity and metabolic pathways show distinct tissue preferences, impacting cellular functions and disease states.

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Proteomics

Background:

  • Phosphorylation is a crucial, widespread reversible posttranslational modification.
  • Understanding tissue-specific phosphorylation is vital for cellular regulation and disease research.

Purpose of the Study:

  • To comprehensively analyze global and tissue-specific sequence and structural properties of phosphorylation sites.
  • To investigate tissue-specific kinase preferences and their impact on metabolic pathways.

Main Methods:

  • Utilized recent proteomics data for global and tissue-specific analysis.
  • Identified sequence and spatial motifs of phosphorylation sites.
  • Analyzed kinase target site preferences across different tissues.

Main Results:

  • Discovered distinct tissue-specific sequence and spatial motifs for phosphorylation sites.
  • Identified kinases with tissue-specific preferences not linked to kinase expression levels.
  • Demonstrated differential regulation of metabolic pathways by phosphorylation across tissues.

Conclusions:

  • Phosphorylation exhibits significant tissue-specific characteristics.
  • Kinase activity and metabolic pathway regulation are dynamically controlled by phosphorylation in a tissue-dependent manner.