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Title: Amino acids phosphorylation Post by: jonas on Sep 6, 2010 Which of the following amino acids could be a target for phosphorylation, and why?
The options are: Phe, Tyr, Ala, Asp, Ser, Cys, Thr. ??? Title: Re: Amino acids phosphorylation Post by: bio_man on Sep 6, 2010 Hey Jonas, Welcome.
If I recall correctly, protein kinases are enzyme (kinase enzymes) that modifies other proteins by chemically adding phosphate groups to them (phosphorylation). The chemical activity of a kinase involves removing a phosphate group from ATP (becoming ADP) and covalently attaching it to one of three amino acids (Tyr, Ser, and Thr) that have a free hydroxyl group. Bio_man |