Enoyl-[acyl-carrier-protein] reductase [NADH] FabI (fabI) is a 262-residue protein from Escherichia coli (strain K12). This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P0AEK4.
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The mean pLDDT of this model is 96.0 (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 | 92% |
| 70 to 90 | Confident: backbone generally right | 7% |
| 50 to 70 | Low: treat with caution | 2% |
| Below 50 | Very low: often disordered regions | 0% |
What pLDDT means and how to read it
Catalyzes the reduction of a carbon-carbon double bond in an enoyl moiety that is covalently linked to an acyl carrier protein (ACP). Involved in the elongation cycle of fatty acid which are used in the lipid metabolism and in the biotin biosynthesis
Homotetramer
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 7UMW | X-ray | 1.54 Å | A/B=1-262 |
| 7UM8 | X-ray | 1.7 Å | A/B=1-262 |
| 1QSG | X-ray | 1.75 Å | A/B/C/D/E/F/G/H=1-262 |
| 1QG6 | X-ray | 1.9 Å | A/B/C/D=2-262 |
| 3PJF | X-ray | 1.9 Å | A/B=1-262 |
| 5CFZ | X-ray | 1.97 Å | A/B=1-262 |
| 1C14 | X-ray | 2.0 Å | A/B=1-262 |
| 5CG1 | X-ray | 2.07 Å | A/B=1-262 |
| 1DFI | X-ray | 2.09 Å | A/B/C/D=2-262 |
| 5CG2 | X-ray | 2.11 Å | A/B=1-262 |
| 1D8A | X-ray | 2.2 Å | A/B=2-262 |
| 1DFH | X-ray | 2.2 Å | A/B=2-262 |
| 1MFP | X-ray | 2.33 Å | A/B=1-262 |
| 1I30 | X-ray | 2.4 Å | A/B=1-262 |
| 1LX6 | X-ray | 2.4 Å | A/B=1-262 |
| 1LXC | X-ray | 2.4 Å | A/B=1-262 |
| 1DFG | X-ray | 2.5 Å | A/B=2-262 |
| 3PJD | X-ray | 2.5 Å | A/B=1-262 |
| 3PJE | X-ray | 2.5 Å | A/B=1-262 |
| 2FHS | X-ray | 2.7 Å | A/B=1-262 |
Showing 20 of 23 experimental structures (best resolution first).
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