Accession | TIGR01150 |
Name | puhA |
Function | photosynthetic reaction center H subunit |
Gene Symbol | puhA |
Trusted Cutoff | 240.40 |
Domain Trusted Cutoff | 240.40 |
Noise Cutoff | 118.30 |
Domain Noise Cutoff | 118.30 |
Isology Type | equivalog |
HMM Length | 252 |
Mainrole Category | Energy metabolism |
Subrole Category | Electron transport |
Gene Ontology Term | GO:0005488: binding molecular_function |
| GO:0009521: photosystem cellular_component |
| GO:0019684: photosynthesis, light reaction biological_process |
Author | Ujwal ML, Paulsen IT |
Entry Date | Feb 4 2001 5:54PM |
Last Modified | Feb 14 2011 3:27PM |
Comment | This model describes the photosynthetic reaction center H subunit in non-oxygenic photosynthetic bacteria. The reaction center is an integral membrane pigment-protein that carries out light-driven electron transfer reactions. At the core of reaction center is a collection light-harvesting cofactors and closely associated polypeptides. The core protein complex is made of L, M and H subunits. The common cofactors include bacterichlorophyll, bacteriopheophytins, ubiquinone and no-heme ferrous iron. The net result of electron tranfer reactions is the establishment of proton electrochemical gradient and production of reducing equivalents in the form of NADH. Ultimately, the process results in the reduction of C02 to carbohydrates(C6H12O6) In non-oxygenic organisms, the electron donor is an organic acid rather than water. Much of our current functional understanding of photosynthesis comes from the structural determination and spectroscopic studies on the reaction center of Rhodobacter sphaeroides. |
Genome Property | GenProp0662: photosynthetic reaction center, alphaproteobacterial type (HMM) |