D
IPR029490

Cytochrome c-550 domain

InterPro entry
Short nameCytochrom_C550
Overlapping
homologous
superfamilies
 
domain relationships

Description

This domain is found in the heme binding cytochrome known as cytochrome c550, or cytochrome c549, or PsbV
[2]
. PsbV is an extrinsic subunit found in the lumen of photosystem II (PSII), which functions as a light-driven water plastoquinone oxidoreductase. PSII utilised light energy to extract electrons from H2O, creating a proton gradient that is later utilised for ATP synthesis. The extrinsic proteins serve to reinforce the structural integrity of the oxygen-evolving complex (OEC) within photosystem II
[1]
.

References

1.Crystal structure of oxygen-evolving photosystem II at a resolution of 1.9 A. Umena Y, Kawakami K, Shen JR, Kamiya N. Nature 473, 55-60, (2011). View articlePMID: 21499260

2.Crystal structure of low-potential cytochrome c549 from Synechocystis sp. PCC 6803 at 1.21 A resolution. Frazao C, Enguita FJ, Coelho R, Sheldrick GM, Navarro JA, Hervas M, De la Rosa MA, Carrondo MA. J. Biol. Inorg. Chem. 6, 324-32, (2001). View articlePMID: 11315568

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