9NZ8 | pdb_00009nz8

Crystal structure of human OGG1 in a DNA-free state

• PDB DOI: https://doi.org/10.2210/pdb9NZ8/pdb

• Classification: HYDROLASE, LYASE/DNA
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2025-03-31 Released: 2026-04-15 
• Deposition Author(s): Syed, A., Arvai, A.S., Tainer, J.A.
• Funding Organization(s): National Institutes of Health/National Cancer Institute (NIH/NCI)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.85 Å
• R-Value Free: 
  0.199 (Depositor), 0.199 (DCC) 
• R-Value Work: 
  0.170 (Depositor), 0.170 (DCC) 
• R-Value Observed: 
  0.172 (Depositor) 

Starting Model: experimental

Literature

Crystal structure of human OGG1 in a DNA-free state

Syed, A., Arvai, A.S., Tainer, J.A.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 36.28 kDa 
• Atom Count: 2,752 
• Modeled Residue Count: 315 
• Deposited Residue Count: 319 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
N-glycosylase/DNA lyase	A	319	Homo sapiens	Mutation(s): 0  Gene Names: OGG1, MMH, MUTM, OGH1 EC: 3.2.2 (PDB Primary Data), 4.2.99.18 (PDB Primary Data)
UniProt & NIH Common Fund Data Resources
Find proteins for O15527 (Homo sapiens) Explore O15527  Go to UniProtKB:  O15527
PHAROS:  O15527 GTEx:  ENSG00000114026

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	B [auth A], C [auth A], D [auth A], E [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.85 Å
• R-Value Free:  0.199 (Depositor), 0.199 (DCC) 
• R-Value Work:  0.170 (Depositor), 0.170 (DCC) 
• R-Value Observed: 0.172 (Depositor) 

Space Group: P 6₅

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 106.731	α = 90
b = 106.731	β = 90
c = 47.817	γ = 120

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data scaling
PHASER	phasing

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-04-15 
Deposition Author(s): Syed, A., Arvai, A.S., Tainer, J.A.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Cancer Institute (NIH/NCI)	United States	P01 CA092584
National Institutes of Health/National Cancer Institute (NIH/NCI)	United States	R35 CA220430

Revision History  

• Version 1.0: 2026-04-15
  Type: Initial release