Kinase
Kinase — An enzyme that catalyzes the transfer of phosphate groups from ATP to substrate molecules, playing a central role in cell signaling cascades.
What Is a Kinase?
A kinase is an enzyme that transfers a phosphate group from ATP to a substrate. Protein kinases phosphorylate Ser, Thr, or Tyr residues in peptide substrates, regulating signal transduction. Kinases are the most common drug targets in oncology, and peptide-based kinase substrates and inhibitors are widely used in research.
Peptide Context
- Substrate peptides: Short sequences containing the phosphorylation site used to measure kinase activity in vitro
- Kinase inhibitor peptides: Pseudosubstrate peptides blocking kinase active sites
- Phosphopeptides: Synthetic phosphopeptides as antibody standards and phosphatase substrates
Frequently Asked Questions
What is Kinase?
An enzyme that catalyzes the transfer of phosphate groups from ATP to substrate molecules, playing a central role in cell signaling cascades.
Why is Kinase important in peptide research?
Kinase is a fundamental concept in biochemistry as it relates to peptide science. It directly influences experimental design, compound characterization, and the reliability of research outcomes across biochemistry and molecular biology disciplines.