Protein kinases are enzymes that catalyze phosphorylation of target proteins at specific sites, whereas protein phosphatases catalyze removal of phosphate(s) from phosphorylated proteins. Phosphorylation and dephosphorylation can function as an on-off switch for a protein's activity, most likely through
A) the change in a protein's charge leading to a conformational change.
B) the change in a protein's charge leading to cleavage.
C) a change in the optimal pH at which a reaction will occur.
D) a change in the optimal temperature at which a reaction will occur.
Attachment of transmembrane proteins to the cytoskeleton and extracellular matrix of an animal cell.
Common modifications of amino acid side chains in proteins
Experimental Treatment of a Prion Protein Infection
Two helical proteins
The cycle of G protein dissociation and reassociation
Your Body Digests, Absorbs, and Synthesizes Protein