Q9UGP5: DNA polymerase lambda (POLL)

DNA polymerase lambda (POLL) is a 575-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q9UGP5.

Gene
POLL
Organism
Homo sapiens
Length
575 residues
Mean pLDDT
80.4
Model
AF-Q9UGP5-F1 v6
Model created
1 Aug 2025
PDB structures
96

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Model confidence (pLDDT)

The mean pLDDT of this model is 80.4 (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 bandMeaningShare of residues
Above 90Very high: backbone and side chains are usually accurate58%
70 to 90Confident: backbone generally right18%
50 to 70Low: treat with caution5%
Below 50Very low: often disordered regions19%

What pLDDT means and how to read it

Function

DNA polymerase that functions in several pathways of DNA repair (PubMed:11457865, PubMed:19806195, PubMed:20693240, PubMed:30250067). Involved in base excision repair (BER) responsible for repair of lesions that give rise to abasic (AP) sites in DNA (PubMed:11457865, PubMed:19806195). Also contributes to DNA double-strand break repair by non-homologous end joining and homologous recombination (PubMed:19806195, PubMed:20693240, PubMed:30250067). Has both template-dependent and template-independent (terminal transferase) DNA polymerase activities (PubMed:10887191, PubMed:10982892, PubMed:12809503, PubMed:14627824, PubMed:15537631, PubMed:19806195). Also has a 5'-deoxyribose-5-phosphate lyase…

Subunit structure

Interacts with PCNA (PubMed:14992725). Interacts with PAXX; promoting POLL recruitment to double-strand breaks (DSBs) and stimulation of the end-filling activity of POLL (PubMed:30250067). Interacts with XRCC4; promoting POLL recruitment to double-strand breaks (DSBs) and stimulation of the end-filling activity of POLL (PubMed:30250067). Interacts with NHEJ1/XLF; promoting POLL recruitment to…

Subcellular location

Nucleus, Chromosome

Experimental structures in the PDB

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

PDB IDMethodResolutionChains and residues
7M07X-ray1.57 ÅA=234-575
7M49X-ray1.6 ÅA=242-575
9NPUX-ray1.63 ÅA=234-575
2BCQX-ray1.65 ÅA=242-575
7M09X-ray1.65 ÅA=234-575
7M47X-ray1.65 ÅA=242-575
7M4BX-ray1.66 ÅA=242-575
7M08X-ray1.7 ÅA=234-575
7M4LX-ray1.7 ÅA=242-575
5IIJX-ray1.72 ÅA=242-575
7M4KX-ray1.72 ÅA=242-575
2BCRX-ray1.75 ÅA=242-575
5IIIX-ray1.8 ÅA=242-575
7M0DX-ray1.8 ÅA/B=234-575
7M4DX-ray1.82 ÅA=242-575
7M0AX-ray1.83 ÅA=234-575
7M4AX-ray1.87 ÅA=242-575
7M4GX-ray1.88 ÅA=242-575
7M45X-ray1.89 ÅA=242-575
2PFNX-ray1.9 ÅA=242-575

Showing 20 of 96 experimental structures (best resolution first).

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