Q9C0C7: Activating molecule in BECN1-regulated autophagy protein 1 (AMBRA1)

Activating molecule in BECN1-regulated autophagy protein 1 (AMBRA1) is a 1298-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q9C0C7.

Gene
AMBRA1
Organism
Homo sapiens
Length
1298 residues
Mean pLDDT
48.8
Model
AF-Q9C0C7-F1 v6
Model created
1 Aug 2025
PDB structures
2

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Model confidence (pLDDT)

The mean pLDDT of this model is 48.8 (very low 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 accurate17%
70 to 90Confident: backbone generally right9%
50 to 70Low: treat with caution6%
Below 50Very low: often disordered regions69%

What pLDDT means and how to read it

Function

Substrate-recognition component of a DCX (DDB1-CUL4-X-box) E3 ubiquitin-protein ligase complex involved in cell cycle control and autophagy (PubMed:20921139, PubMed:23524951, PubMed:24587252, PubMed:32333458, PubMed:33854232, PubMed:33854235, PubMed:33854239). The DCX(AMBRA1) complex specifically mediates the polyubiquitination of target proteins such as BECN1, CCND1, CCND2, CCND3, ELOC and ULK1 (PubMed:23524951, PubMed:33854232, PubMed:33854235, PubMed:33854239). Acts as an upstream master regulator of the transition from G1 to S cell phase: AMBRA1 specifically recognizes and binds phosphorylated cyclin-D (CCND1, CCND2 and CCND3), leading to cyclin-D ubiquitination by the DCX(AMBRA1)…

Subunit structure

Component of the DCX(AMBRA1) E3 ubiquitin ligase complex, also named CRL4(AMBRA1), at least composed of CUL4 (CUL4A or CUL4B), DDB1, AMBRA1 and RBX1 (PubMed:16949367, PubMed:25499913, PubMed:30166453, PubMed:33854232, PubMed:33854239). Interacts with BECN1 (PubMed:21358617, PubMed:25438055). Probably forms a complex with BECN1 and PIK3C3 (By similarity). Interacts with BECN2 (PubMed:23954414).…

Subcellular location

Endoplasmic reticulum, Cytoplasm, cytoskeleton, Cytoplasmic vesicle, autophagosome, Mitochondrion, Cytoplasm, cytosol, Nucleus, Cell junction, focal adhesion

Experimental structures in the PDB

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

PDB IDMethodResolutionChains and residues
8WQREM3.08 ÅB=1-1044
9IVDEM3.55 ÅB=1-1044

More AlphaFold highlights

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