Question

What is the term for the cell-surface receptor that activates a cytoplasmic tyrosine kinase that is noncovalently bound to the receptor?

1) Focal adhesion kinase (FAK)
2) Tyrosine-kinase-associated receptor
3) Janus kinase (JAK)
4) Receptor tyrosine kinase (RTK)

Answer 1

A receptor tyrosine kinase (RTK) is the term for the cell-surface receptor that activates a cytoplasmic tyrosine kinase. The RTK is noncovalently bound to the receptor and triggers a downstream cellular response through phosphorylation of tyrosine residues on the intracellular domain.

Step-by-step explanation:

A receptor tyrosine kinase (RTK) is the term for the cell-surface receptor that activates a cytoplasmic tyrosine kinase. The RTK is noncovalently bound to the receptor and triggers a downstream cellular response through phosphorylation of tyrosine residues on the intracellular domain.