9GEX | pdb_00009gex

Escherichia coli NrdR with unocuppied outer nucleotide-binding site

PDB DOI: https://doi.org/10.2210/pdb9GEX/pdb

Classification: DNA BINDING PROTEIN
Organism(s): Escherichia coli K-12
Expression System: Escherichia coli BL21(DE3)
Mutation(s): No

Deposited: 2024-08-07 Released: 2026-02-18
Deposition Author(s): Szura, A., Schmitz, C., Pedraz, L., Torrents, E., Sola, M.
Funding Organization(s): Ministry of Economy and Competitiveness (MINECO), Spanish Ministry of Science, Innovation, and Universities

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.60 Å
R-Value Free:
0.239 (Depositor), 0.239 (DCC)
R-Value Work:
0.197 (Depositor), 0.197 (DCC)
R-Value Observed:
0.200 (Depositor)

wwPDB Validation 3D Report Full Report

Ligand Structure Quality Assessment

This is version 1.0 of the entry. See complete history.

Literature

Escherichia coli NrdR with unocuppied outer nucleotide-binding site

Szura, A., Schmitz, C., Pedraz, L., Torrents, E., Sola, M.

To be published.

Macromolecule Content

Total Structure Weight: 71.68 kDa
Atom Count: 4,893
Modeled Residue Count: 577
Deposited Residue Count: 604
Unique protein chains: 1

Macromolecules

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| 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Transcriptional repressor NrdR	A, B, C, D	151	Escherichia coli K-12	Mutation(s): 0 Gene Names: nrdR, ybaD, b0413, JW0403
UniProt
Find proteins for P0A8D0 (Escherichia coli (strain K12)) Explore P0A8D0 Go to UniProtKB: P0A8D0
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P0A8D0
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
ATP (Subject of Investigation/LOI) Query on ATP Download:Ideal Coordinates CCD File SDF format, chain H [auth B] SDF format, chain O [auth D] MOL2 format, chain H [auth B] MOL2 format, chain O [auth D] mmCIF format, chain H [auth B] mmCIF format, chain O [auth D]	H [auth B], O [auth D]	ADENOSINE-5'-TRIPHOSPHATE C₁₀ H₁₆ N₅ O₁₃ P₃ ZKHQWZAMYRWXGA-KQYNXXCUSA-N		Interactions Focus chain H [auth B] Focus chain O [auth D] Interactions & Density Focus chain H [auth B] Focus chain O [auth D]
ADP (Subject of Investigation/LOI) Query on ADP Download:Ideal Coordinates CCD File SDF format, chain K [auth C] MOL2 format, chain K [auth C] mmCIF format, chain K [auth C]	K [auth C]	ADENOSINE-5'-DIPHOSPHATE C₁₀ H₁₅ N₅ O₁₀ P₂ XTWYTFMLZFPYCI-KQYNXXCUSA-N		Interactions Focus chain K [auth C] Interactions & Density Focus chain K [auth C]
GOL Query on GOL Download:Ideal Coordinates CCD File SDF format, chain F [auth A] SDF format, chain I [auth B] SDF format, chain L [auth C] SDF format, chain M [auth C] MOL2 format, chain F [auth A] MOL2 format, chain I [auth B] MOL2 format, chain L [auth C] MOL2 format, chain M [auth C] mmCIF format, chain F [auth A] mmCIF format, chain I [auth B] mmCIF format, chain L [auth C] mmCIF format, chain M [auth C]	F [auth A], I [auth B], L [auth C], M [auth C]	GLYCEROL C₃ H₈ O₃ PEDCQBHIVMGVHV-UHFFFAOYSA-N		Interactions Focus chain F [auth A] Focus chain I [auth B] Focus chain L [auth C] Focus chain M [auth C] Interactions & Density Focus chain F [auth A] Focus chain I [auth B] Focus chain L [auth C] Focus chain M [auth C]
ZN (Subject of Investigation/LOI) Query on ZN Download:Ideal Coordinates CCD File SDF format, chain E [auth A] SDF format, chain G [auth B] SDF format, chain J [auth C] SDF format, chain N [auth D] MOL2 format, chain E [auth A] MOL2 format, chain G [auth B] MOL2 format, chain J [auth C] MOL2 format, chain N [auth D] mmCIF format, chain E [auth A] mmCIF format, chain G [auth B] mmCIF format, chain J [auth C] mmCIF format, chain N [auth D]	E [auth A], G [auth B], J [auth C], N [auth D]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N		Interactions Focus chain E [auth A] Focus chain G [auth B] Focus chain J [auth C] Focus chain N [auth D] Interactions & Density Focus chain E [auth A] Focus chain G [auth B] Focus chain J [auth C] Focus chain N [auth D]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.60 Å
R-Value Free: 0.239 (Depositor), 0.239 (DCC)
R-Value Work: 0.197 (Depositor), 0.197 (DCC)
R-Value Observed: 0.200 (Depositor)

Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 51.289	α = 90
b = 256.274	β = 90
c = 133.431	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XSCALE	data scaling
CRANK2	phasing
Coot	model building

Structure Validation

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Ligand Structure Quality Assessment

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Entry History

& Funding Information

Deposition Data

Released Date: 2026-02-18

Deposition Author(s):

Funding Organization	Location	Grant Number
Ministry of Economy and Competitiveness (MINECO)	Spain	FPI BES-2016-077079
Ministry of Economy and Competitiveness (MINECO)	Spain	FPI BES-2013-063407
Spanish Ministry of Science, Innovation, and Universities	Spain	FI-DGR 2015-FI-B-00817