The EnzCheck and PiPer assays are two methods of spectrophotometrically determining the concentration of this ion.
The EnzCheck and PiPer assays are two methods of spectrophotometrically determining the concentration of this ion. Two of these ions are attached to dimethylallyl and isopentenyl groups in precursors of terpene; when dimerized in that way, this ion is prefixed with "pyro." Kinases append these molecules to certain amino acid residues on proteins, and electrophoresis works by using a voltage to drive these ions in DNA toward the positive ends of the gel. This anion forms a weak triprotic acid, and the breaking of bonds to it often provides the energy for biochemical processes. For 10 points, name this ion found once in the structure of AMP and three times in ATP.
The EnzCheck and PiPer assays are two methods of spectrophotometrically determining the concentration of this ion.
phosphate ion [or PO43-]