PsbQ, also known as 16 kDa protein, is one of the three components (PsbO, PsbP and PsbQ) of oxygen evolving complex (OEC) in higher plants. The cyanobacterial photosystem II have five associated extrinsic proteins, PsbO, PsbP, PsbQ, PsbU and PsbV. This class of subunits is located on the lumen face of the thylakoid membranes. PsbQ has a regulatory role on the water oxidation machinery.
The lack of PsbQ in cyanobacteria affects the stability of PsbV protein; and it is likely that the major function of cyanobacterial PsbQ is to stabilize the PsbV protein, thereby contributing to the protection of the catalytic Mn(4)-Ca(1)-Cl(x) cluster of the water oxidation machinery.
Plastid, chloroplast thylakoid membrane
16 kDa subunit of oxygen evolving system of photosystem II antibody
OEC 16 kDa subunit antibody
OXYGEN EVOLVING COMPLEX SUBUNIT 16 KDA antibody
Oxygen-evolving enhancer protein 3 1, chloroplast antibody
Oxygen-evolving enhancer protein 3 2, chloroplast antibody
Oxygen-evolving enhancer protein 3, chloroplastic antibody
PSBQ 1 antibody
PSBQ/PSBQ 1/PSBQA PSBQ/PSBQ 1/PSBQA; calcium ion binding antibody