ISDA

Deposition Date 2022-11-15

Release Date 2023-09-27

Last Version Date 2024-10-16

Entry Detail

PDB ID:

8F5Q

Keywords:

DNA BINDING PROTEIN

Title:

Crystal structure of human PCNA in complex with the PIP box of FBH1

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.90 Å

R-Value Free:

0.26

R-Value Work:

0.22

R-Value Observed:

0.22

Space Group:

I 1 2 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Proliferating cell nuclear antigen
Gene (Uniprot):PCNA
Chain IDs:A, C, E
Chain Length:259
Number of Molecules:3
Biological Source:Homo sapiens

UniProt ID:P12004 Pfam ID:PF00705, PF02747

Protein Blast

Polymer Type:polypeptide(L)
Molecule:F-box DNA helicase 1
Gene (Uniprot):FBH1
Chain IDs:B, D, F
Chain Length:9
Number of Molecules:3
Biological Source:Homo sapiens

UniProt ID:Q8NFZ0

Primary Citation

Molecular insight into the PCNA-binding mode of FBH1.

Liu, J, Chaves-Arquero, B, Wei, P, Tencer, A.H, Ruiz-Albor, A, Zhang, G, Blanco, F.J, Kutateladze, T.G.Show

Structure 31 511 517.e3 (2023)

PMID: 36990095 DOI: 10.1016/j.str.2023.03.004

Abstact

F-box DNA helicase 1 (FBH1) is involved in the regulation of cell responses to replicative stress. FBH1 is recruited to stalled DNA replication fork by PCNA where it inhibits homologous recombination and catalyzes fork regression. Here, we report the structural basis for the molecular recognition of two distinctly different motifs of FBH1, FBH1PIP and FBH1APIM, by PCNA. The crystal structure of PCNA in complex with FBH1PIP and analysis of NMR perturbations reveal overlapped FBH1PIP and FBH1APIM binding sites of PCNA and the dominant contribution of FBH1PIP in this interaction.

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Primary Citation of related structures