Q9CZ13: Cytochrome b-c1 complex subunit 1, mitochondrial (Uqcrc1)

Cytochrome b-c1 complex subunit 1, mitochondrial (Uqcrc1) is a 480-residue protein from Mus musculus. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q9CZ13.

Gene
Uqcrc1
Organism
Mus musculus
Length
480 residues
Mean pLDDT
91.3
Model
AF-Q9CZ13-F1 v6
Model created
1 Aug 2025
PDB structures
18

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Model confidence (pLDDT)

The mean pLDDT of this model is 91.3 (very high overall). pLDDT is AlphaFold's per-residue confidence score from 0 to 100. In MolViewer, choose the B-factor color scheme to color the model by pLDDT, because AlphaFold stores it in the B-factor column.

pLDDT bandMeaningShare of residues
Above 90Very high: backbone and side chains are usually accurate87%
70 to 90Confident: backbone generally right5%
50 to 70Low: treat with caution1%
Below 50Very low: often disordered regions7%

What pLDDT means and how to read it

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 (PubMed:34616041, PubMed:38575788). 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 (PubMed:34616041, PubMed:38575788).…

Subunit structure

Component of the ubiquinol-cytochrome c oxidoreductase (cytochrome b-c1 complex, complex III, CIII), a multisubunit enzyme composed of 11 subunits (PubMed:34616041, PubMed:38575788). The complex is composed of 3 respiratory subunits cytochrome b, cytochrome c1 and Rieske protein UQCRFS1, 2 core protein subunits UQCRC1/QCR1 and UQCRC2/QCR2, and 6 low-molecular weight protein subunits UQCRH/QCR6,…

Subcellular location

Mitochondrion inner membrane

Experimental structures in the PDB

Compare the prediction with experimentally determined structures of the same protein:

PDB IDMethodResolutionChains and residues
7O3HEM2.6 ÅA/L=35-480
7O37EM3.2 ÅA/L=35-480
7O3CEM3.3 ÅA/L=35-480
8PW6EM3.3 ÅA/L=1-480
8IAREM3.4 ÅAA/Aa=1-480
8IB7EM3.4 ÅAA/Aa=1-480
8PW7EM3.5 ÅA/L=1-480
7O3EEM3.6 ÅA/L=35-480
8IBCEM3.6 ÅAA/Aa=1-480
8PW5EM3.6 ÅA/L=1-480
8UCAEM3.7 Å3A/3L=35-480
8IBGEM3.8 ÅAA/Aa=1-480
8IC5EM4.1 ÅAA/Aa=1-480
8IAOEM4.2 ÅAA/Aa=1-480
8IBDEM4.2 ÅAA/Aa=1-480
8IB4EM4.3 ÅAA/Aa=1-480
8IB9EM4.3 ÅAA/Aa=1-480
8IC2EM6.3 ÅAA/Aa=1-480

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