AP BIOLOGY

Detailed explanation-1: -Protein kinases transfer a phosphoryl group from ATP onto target proteins and play a critical role in signal transduction and other cellular processes.

Detailed explanation-2: -Tyrosine kinase belongs to the enzyme that can transfer a phosphate group from ATP to a protein in a cell. Tyrosine kinases are a subgroup of the larger class of protein kinases that attache phosphate groups to other amino acids, such as serine and threonine in tyrosine kinase phosphorylation process.

Detailed explanation-3: -An enzyme that transfers phosphate groups from ATP to a protein is generally known as a protein kinase. Many of the relay molecules in signal transduction pathways are protein kinases, and they often act on other protein kinases in the pathway. This is called a phosphorylation cascade.

Detailed explanation-4: -(KY-nays) A type of enzyme (a protein that speeds up chemical reactions in the body) that adds chemicals called phosphates to other molecules, such as sugars or proteins. This may cause other molecules in the cell to become either active or inactive. Kinases are a part of many cell processes.

Detailed explanation-5: -kinase, an enzyme that adds phosphate groups (PO43−) to other molecules. A large number of kinases exist-the human genome contains at least 500 kinase-encoding genes. Included among these enzymes’ targets for phosphate group addition (phosphorylation) are proteins, lipids, and nucleic acids.