Search Results
Overview
| Uniprot ID | P99028 |
|---|---|
| Protein Name | Cytochrome b-c1 complex subunit 6, mitochondrial |
| Gene Name | Uqcrh |
| Organism | Mus musculus |
Kla Sites from experimental identification
| Position | Flanking peptide |
|---|---|
| 40 | EHCEQLEKCVKARER |
| 83 | RDHCVAHKLFKNLK* |
Function
Component of the ubiquinol-cytochrome c oxidoreductase, a multisubunit transmembrane complex that is part of the mitochondrial electron transport chain which drives oxidative phosphorylation. The respiratory chain contains 3 multisubunit complexes succinate dehydrogenase (complex II, CII), ubiquinol-cytochrome c oxidoreductase (cytochrome b-c1 complex, complex III, CIII) and cytochrome c oxidase (complex IV, CIV), that cooperate to transfer electrons derived from NADH and succinate to molecular oxygen, creating an electrochemical gradient over the inner membrane that drives transmembrane transport and the ATP synthase. The cytochrome b-c1 complex catalyzes electron transfer from ubiquinol to cytochrome c, linking this redox reaction to translocation of protons across the mitochondrial inner membrane, with protons being carried across the membrane as hydrogens on the quinol. In the process called Q cycle, 2 protons are consumed from the matrix, 4 protons are released into the intermembrane space and 2 electrons are passed to cytochrome c
Protein Sequence
Gene Ontology
| Classification | GO ID | Description |
|---|---|---|
| Cellular Component | GO:0005743 | mitochondrial inner membrane |
| Cellular Component | GO:0005739 | mitochondrion |
| Cellular Component | GO:0045275 | respiratory chain complex III |
| Molecular Function | GO:0044877 | protein-containing complex binding |
| Molecular Function | GO:0008121 | quinol-cytochrome-c reductase activity |
| Biological Process | GO:0045333 | cellular respiration |
| Biological Process | GO:0006122 | mitochondrial electron transport, ubiquinol to cytochrome c |
Reference
[1] Chang J, Wu W, Qian P, Lu Z, He X et al.. Multi-omics study on the effect of moderate-intensity exercise on protein lactylation in mouse muscle tissue.. Front Cell Dev Biol 12:1472338. 2024. PMID: 39935788.
[2] Zhuo W, Zhang M, Tan J, Gao Y, Wang Y et al.. Lysine lactylation analysis of proteins in the heart of the Kawasaki disease mouse model.. Front Cell Dev Biol 13:1550220. 2025. PMID: 40114965.
[3] Wu D, Tang Y, Li X, Xiong S, Zhang Z et al.. Characterization of protein lactylation in healthy and ischemic mouse hearts.. Front Cardiovasc Med 12:1644886. 2025. PMID: 41089239.