NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 2 (Ndufa2) is a 99-residue protein from Mus musculus. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q9CQ75.
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The mean pLDDT of this model is 83.9 (confident 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 | 63% |
| 70 to 90 | Confident: backbone generally right | 21% |
| 50 to 70 | Low: treat with caution | 3% |
| Below 50 | Very low: often disordered regions | 13% |
What pLDDT means and how to read it
Accessory subunit of the mitochondrial membrane respiratory chain NADH dehydrogenase (Complex I), that is believed not to be involved in catalysis. Complex I functions in the transfer of electrons from NADH to the respiratory chain. The immediate electron acceptor for the enzyme is believed to be ubiquinone
Complex I is composed of 45 different subunits
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 | S=1-99 |
| 8OLT | EM | 2.84 Å | S=1-99 |
| 8RGR | EM | 2.9 Å | S=1-99 |
| 6ZTQ | EM | 3.0 Å | S=1-99 |
| 8RGP | EM | 3.0 Å | S=1-99 |
| 8RGQ | EM | 3.0 Å | S=1-99 |
| 7B93 | EM | 3.04 Å | S=1-99 |
| 6ZR2 | EM | 3.1 Å | S=1-99 |
| 8RGT | EM | 3.1 Å | S=1-99 |
| 8XNL | EM | 3.1 Å | S=1-99 |
| 7AK5 | EM | 3.17 Å | S=1-99 |
| 8CA3 | EM | 3.2 Å | S=1-99 |
| 8IAP | EM | 3.2 Å | S=1-99 |
| 8IBA | EM | 3.2 Å | S=1-99 |
| 8IC3 | EM | 3.2 Å | S=1-99 |
| 8CA4 | EM | 3.25 Å | S=1-99 |
| 6G2J | EM | 3.3 Å | S=1-99 |
| 8IB5 | EM | 3.3 Å | S=1-99 |
| 8IBE | EM | 3.3 Å | S=1-99 |
| 8PW6 | EM | 3.3 Å | S1=1-99 |
Showing 20 of 48 experimental structures (best resolution first).
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