NADH-ubiquinone oxidoreductase 75 kDa subunit, mitochondrial (Ndufs1) is a 727-residue protein from Mus musculus. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q91VD9.
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The mean pLDDT of this model is 92.1 (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 band | Meaning | Share of residues |
|---|---|---|
| Above 90 | Very high: backbone and side chains are usually accurate | 86% |
| 70 to 90 | Confident: backbone generally right | 9% |
| 50 to 70 | Low: treat with caution | 1% |
| Below 50 | Very low: often disordered regions | 5% |
What pLDDT means and how to read it
Core subunit of the mitochondrial membrane respiratory chain NADH dehydrogenase (Complex I) which catalyzes electron transfer from NADH through the respiratory chain, using ubiquinone as an electron acceptor (PubMed:27799543, PubMed:32072193, PubMed:38575788). Essential for catalysing the entry and efficient transfer of electrons within complex I (PubMed:27799543). Plays a key role in the assembly and stability of complex I and participates in the association of complex I with ubiquinol-cytochrome reductase complex (Complex III) to form supercomplexes (PubMed:27799543)
Core subunit of respiratory chain NADH dehydrogenase (Complex I) which is composed of 45 different subunits (PubMed:38575788). This is the largest subunit of complex I and it is a component of the iron-sulfur (IP) fragment of the enzyme (By similarity). Complex I associates with ubiquinol-cytochrome reductase complex (Complex III) to form supercomplexes (PubMed:27799543). In astrocytes, less…
Mitochondrion inner membrane
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 8OM1 | EM | 2.39 Å | G=1-727 |
| 8OLT | EM | 2.84 Å | G=1-727 |
| 8RGR | EM | 2.9 Å | 3=1-727 |
| 6ZTQ | EM | 3.0 Å | G=1-727 |
| 8RGP | EM | 3.0 Å | 3=1-727 |
| 8RGQ | EM | 3.0 Å | 3=1-727 |
| 7B93 | EM | 3.04 Å | G=1-727 |
| 6ZR2 | EM | 3.1 Å | G=1-727 |
| 8RGT | EM | 3.1 Å | 3=1-727 |
| 8XNL | EM | 3.1 Å | G=1-727 |
| 7AK5 | EM | 3.17 Å | G=1-715 |
| 8CA3 | EM | 3.2 Å | G=1-727 |
| 8IAP | EM | 3.2 Å | G=1-727 |
| 8IBA | EM | 3.2 Å | G=1-727 |
| 8IC3 | EM | 3.2 Å | G=1-727 |
| 8CA4 | EM | 3.25 Å | G=1-727 |
| 6G2J | EM | 3.3 Å | G=1-727 |
| 8IB5 | EM | 3.3 Å | G=1-727 |
| 8IBE | EM | 3.3 Å | G=1-727 |
| 8PW6 | EM | 3.3 Å | 3=1-727 |
Showing 20 of 48 experimental structures (best resolution first).
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