Cytochrome b.

Cytochrome b; Component of the ubiquinol-cytochrome c reductase complex (complex III or cytochrome b-c1 complex) that is part of the mitochondrial respiratory chain. The b-c1 complex mediates electron transfer from ubiquinol to cytochrome c. Contributes to the generation of a proton gradient across the mitochondrial membrane that is then used for ATP synthesis.

Cytochrome b.

Cytochrome c biogenesis protein CcsA; Required during biogenesis of c-type cytochromes (cytochrome c6 and cytochrome f) at the step of heme attachment.

Cytochrome b.

ATP-dependent Clp protease proteolytic subunit; Cleaves peptides in various proteins in a process that requires ATP hydrolysis. Has a chymotrypsin-like activity. Plays a major role in the degradation of misfolded proteins. Belongs to the peptidase S14 family.

Cytochrome b.

Translation initiation factor IF-1, chloroplastic.

Cytochrome b.

Maturase K; Usually encoded in the trnK tRNA gene intron. Probably assists in splicing its own and other chloroplast group II introns. Belongs to the intron maturase 2 family. MatK subfamily.

Cytochrome b.

NAD(P)H-quinone oxidoreductase chain 4; NDH-1 shuttles electrons from NAD(P)H, via FMN and iron- sulfur (Fe-S) centers, to quinones in the respiratory chain. The immediate electron acceptor for the enzyme in this species is believed to be plastoquinone. Couples the redox reaction to proton translocation (for every two electrons transferred, four hydrogen ions are translocated across the cytoplasmic membrane), and thus conserves the redox energy in a proton gradient; Belongs to the complex I subunit 4 family.

Cytochrome b.

NADH dehydrogenase subunit 5; Belongs to the complex I subunit 5 family.

Cytochrome b.

Photosystem I P700 chlorophyll a apoprotein A2; Belongs to the PsaA/PsaB family.

Cytochrome b.

Photosystem II reaction center protein J; One of the components of the core complex of photosystem II (PSII). PSII is a light-driven water:plastoquinone oxidoreductase that uses light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation. It consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation.

Cytochrome b.

Ribosomal protein L2.

Cytochrome b.

Ribosomal protein S12; Belongs to the universal ribosomal protein uS12 family.

Cytochrome b.

Ribosomal protein S12; Belongs to the universal ribosomal protein uS12 family.

Cytochrome b.

Ribosomal protein S16.

Cytochrome b.

Ribosomal protein S8; Belongs to the universal ribosomal protein uS8 family.

Cytochrome b.

Protein TIC 214.

Cytochrome b.

Protein Ycf2; Probable ATPase of unknown function. Its presence in a non- photosynthetic plant (Epifagus virginiana) and experiments in tobacco indicate that it has an essential function which is probably not related to photosynthesis; Belongs to the Ycf2 family.

Cytochrome b.

Photosystem I assembly protein Ycf3; Essential for the assembly of the photosystem I (PSI) complex. May act as a chaperone-like factor to guide the assembly of the PSI subunits.

Cytochrome b; Component of the ubiquinol-cytochrome c reductase complex (complex III or cytochrome b-c1 complex) that is part of the mitochondrial respiratory chain. The b-c1 complex mediates electron transfer from ubiquinol to cytochrome c. Contributes to the generation of a proton gradient across the mitochondrial membrane that is then used for ATP synthesis.

Cytochrome b.

Cytochrome b; Component of the ubiquinol-cytochrome c reductase complex (complex III or cytochrome b-c1 complex) that is part of the mitochondrial respiratory chain. The b-c1 complex mediates electron transfer from ubiquinol to cytochrome c. Contributes to the generation of a proton gradient across the mitochondrial membrane that is then used for ATP synthesis.

Cytochrome c biogenesis protein CcsA; Required during biogenesis of c-type cytochromes (cytochrome c6 and cytochrome f) at the step of heme attachment.

Cytochrome b; Component of the ubiquinol-cytochrome c reductase complex (complex III or cytochrome b-c1 complex) that is part of the mitochondrial respiratory chain. The b-c1 complex mediates electron transfer from ubiquinol to cytochrome c. Contributes to the generation of a proton gradient across the mitochondrial membrane that is then used for ATP synthesis.

ATP-dependent Clp protease proteolytic subunit; Cleaves peptides in various proteins in a process that requires ATP hydrolysis. Has a chymotrypsin-like activity. Plays a major role in the degradation of misfolded proteins. Belongs to the peptidase S14 family.