Q12888: TP53-binding protein 1 (TP53BP1)

TP53-binding protein 1 (TP53BP1) is a 1972-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q12888.

Gene
TP53BP1
Organism
Homo sapiens
Length
1972 residues
Mean pLDDT
43.9
Model
AF-Q12888-F1 v6
Model created
1 Aug 2025
PDB structures
45

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Model confidence (pLDDT)

The mean pLDDT of this model is 43.9 (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 accurate15%
70 to 90Confident: backbone generally right4%
50 to 70Low: treat with caution2%
Below 50Very low: often disordered regions79%

What pLDDT means and how to read it

Function

Double-strand break (DSB) repair protein involved in response to DNA damage, telomere dynamics and class-switch recombination (CSR) during antibody genesis (PubMed:12364621, PubMed:17190600, PubMed:21144835, PubMed:22553214, PubMed:23333306, PubMed:27153538, PubMed:28241136, PubMed:31135337, PubMed:37696958). Plays a key role in the repair of double-strand DNA breaks (DSBs) in response to DNA damage by promoting non-homologous end joining (NHEJ)-mediated repair of DSBs and specifically counteracting the function of the homologous recombination (HR) repair protein BRCA1 (PubMed:22553214, PubMed:23333306, PubMed:23727112, PubMed:27153538, PubMed:31135337). In response to DSBs,…

Subunit structure

Homooligomer (PubMed:16294047, PubMed:23345425, PubMed:23760478). Interacts with p53/TP53 (via the central domain) (PubMed:11877378, PubMed:12110597). Interacts with DCLRE1C (PubMed:15574327). Interacts with histone H2AX and this requires phosphorylation of H2AX on 'Ser-139' (PubMed:12607005). Interacts with histone H4 that has been dimethylated at 'Lys-20' (H4K20me2) (PubMed:17190600). Has low…

Subcellular location

Nucleus, Chromosome, Chromosome, centromere, kinetochore

Experimental structures in the PDB

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

PDB IDMethodResolutionChains and residues
8SVIX-ray1.15 ÅA=1484-1603
8SVHX-ray1.16 ÅA=1484-1603
8SVGX-ray1.21 ÅA=1484-1603
2G3RX-ray1.25 ÅA=1484-1603
6VA5X-ray1.28 ÅA=1483-1606
6VIPX-ray1.36 ÅA/B=1483-1606
7LINX-ray1.44 ÅB=1636-1650
3LGFX-ray1.5 ÅA=1484-1603
4RG2X-ray1.5 ÅA/B=1483-1606
8SVJX-ray1.5 ÅA=1484-1603
8F0WX-ray1.52 ÅA/B=1483-1606
3LGLX-ray1.6 ÅA=1484-1603
8SWJX-ray1.6 ÅA/B/C/D=1483-1606
6MXYX-ray1.62 ÅA/B=1484-1603
2IG0X-ray1.7 ÅA=1484-1603
6IUAX-ray1.7 ÅB=1665-1686
8EOMX-ray1.7 ÅA/B=1483-1606
8T2DX-ray1.75 ÅA=1484-1603
5Z78X-ray1.76 ÅC=1484-1603
4X34X-ray1.8 ÅA/B=1484-1603

Showing 20 of 45 experimental structures (best resolution first).

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