9N4A | pdb_00009n4a

Wild-type RhoA GTPase bound to GppNHp

PDB DOI: https://doi.org/10.2210/pdb9N4A/pdb

Classification: HYDROLASE
Organism(s): Homo sapiens
Expression System: Escherichia coli BL21(DE3)
Mutation(s): No

Deposited: 2025-02-02 Released: 2026-02-11
Deposition Author(s): Marcus, K., Mattos, C.
Funding Organization(s): National Science Foundation (NSF, United States)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.95 Å
R-Value Free:
0.221 (Depositor), 0.224 (DCC)
R-Value Work:
0.178 (Depositor), 0.180 (DCC)
R-Value Observed:
0.181 (Depositor)

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

Ligand Structure Quality Assessment

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

Literature

An evolutionarily conserved salt bridge stabilizes the active site for GTP hydrolysis in Rho GTPases

Marcus, K., Schwabe, M., Knihtila, R., Mattos, C.

(null) J Biological Chem

DOI: https://doi.org/10.1016/j.jbc.2026.111260

Macromolecule Content

Total Structure Weight: 42.25 kDa
Atom Count: 3,160
Modeled Residue Count: 359
Deposited Residue Count: 362
Unique protein chains: 1

Macromolecules

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(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Transforming protein RhoA	A, B	181	Homo sapiens	Mutation(s): 0 Gene Names: RHOA, ARH12, ARHA, RHO12 EC: 3.6.5.2
UniProt & NIH Common Fund Data Resources
Find proteins for P61586 (Homo sapiens) Explore P61586 Go to UniProtKB: P61586
PHAROS: P61586 GTEx: ENSG00000067560
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P61586
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
GNP Query on GNP Download Ideal Coordinates CCD File SDF format, chain F [auth A] SDF format, chain I [auth B] MOL2 format, chain F [auth A] MOL2 format, chain I [auth B] mmCIF format, chain F [auth A] mmCIF format, chain I [auth B]	F [auth A], I [auth B]	PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER C₁₀ H₁₇ N₆ O₁₃ P₃ UQABYHGXWYXDTK-UUOKFMHZSA-N		Interactions Focus chain F [auth A] Focus chain I [auth B] Interactions & Density Focus chain F [auth A] Focus chain I [auth B]
DIO Query on DIO Download Ideal Coordinates CCD File SDF format, chain C [auth A] SDF format, chain J [auth B] MOL2 format, chain C [auth A] MOL2 format, chain J [auth B] mmCIF format, chain C [auth A] mmCIF format, chain J [auth B]	C [auth A], J [auth B]	1,4-DIETHYLENE DIOXIDE C₄ H₈ O₂ RYHBNJHYFVUHQT-UHFFFAOYSA-N		Interactions Focus chain C [auth A] Focus chain J [auth B] Interactions & Density Focus chain C [auth A] Focus chain J [auth B]
MG Query on MG Download Ideal Coordinates CCD File SDF format, chain D [auth A] SDF format, chain E [auth A] SDF format, chain G [auth B] SDF format, chain H [auth B] MOL2 format, chain D [auth A] MOL2 format, chain E [auth A] MOL2 format, chain G [auth B] MOL2 format, chain H [auth B] mmCIF format, chain D [auth A] mmCIF format, chain E [auth A] mmCIF format, chain G [auth B] mmCIF format, chain H [auth B]	D [auth A], E [auth A], G [auth B], H [auth B]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N		Interactions Focus chain D [auth A] Focus chain E [auth A] Focus chain G [auth B] Focus chain H [auth B] Interactions & Density Focus chain D [auth A] Focus chain E [auth A] Focus chain G [auth B] Focus chain H [auth B]