9ZPG | pdb_00009zpg

Crystal structure of Glutamate--tRNA ligase (GltX) from Moraxella catarrhalis (Apo)

PDB DOI: https://doi.org/10.2210/pdb9ZPG/pdb

Classification: LIGASE
Organism(s): Moraxella catarrhalis
Expression System: Escherichia coli BL21(DE3)
Mutation(s): No

Deposited: 2025-12-16 Released: 2025-12-24
Deposition Author(s): Seattle Structural Genomics Center for Infectious Disease, Seattle Structural Genomics Center for Infectious Disease (SSGCID)
Funding Organization(s): National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID), National Institutes of Health/Office of the Director

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.75 Å
R-Value Free:
0.261 (Depositor), 0.260 (DCC)
R-Value Work:
0.215 (Depositor), 0.218 (DCC)
R-Value Observed:
0.218 (Depositor)

Starting Model: experimental
View more details

wwPDB Validation 3D Report Full Report

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

Literature

Crystal structure of Glutamate--tRNA ligase (GltX) from Moraxella catarrhalis (Apo)

Seibold, S., Lovell, S., Enayati, P., Battaile, K.P.

To be published.

Macromolecule Content

Total Structure Weight: 119.24 kDa
Atom Count: 7,739
Modeled Residue Count: 988
Deposited Residue Count: 1,038
Unique protein chains: 1

Macromolecules

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(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Glutamate--tRNA ligase	A, B	519	Moraxella catarrhalis	Mutation(s): 0 Gene Names: gltX, AO370_0559 EC: 6.1.1.17
UniProt
Find proteins for A0AB36DQE3 (Moraxella catarrhalis) Explore A0AB36DQE3 Go to UniProtKB: A0AB36DQE3
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	A0AB36DQE3
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
P6G Query on P6G Download Ideal Coordinates CCD File SDF format, chain J [auth A] MOL2 format, chain J [auth A] mmCIF format, chain J [auth A]	J [auth A]	HEXAETHYLENE GLYCOL C₁₂ H₂₆ O₇ IIRDTKBZINWQAW-UHFFFAOYSA-N		Interactions Focus chain J [auth A] Interactions & Density Focus chain J [auth A]
SO4 Query on SO4 Download Ideal Coordinates CCD File SDF format, chain C [auth A] SDF format, chain D [auth A] SDF format, chain E [auth A] SDF format, chain F [auth A] SDF format, chain G [auth A] SDF format, chain H [auth A] SDF format, chain I [auth A] SDF format, chain K [auth B] SDF format, chain M [auth B] SDF format, chain O [auth B] SDF format, chain P [auth B] SDF format, chain L [auth B] MOL2 format, chain C [auth A] MOL2 format, chain D [auth A] MOL2 format, chain E [auth A] MOL2 format, chain F [auth A] MOL2 format, chain G [auth A] MOL2 format, chain H [auth A] MOL2 format, chain I [auth A] MOL2 format, chain K [auth B] MOL2 format, chain M [auth B] MOL2 format, chain O [auth B] MOL2 format, chain P [auth B] MOL2 format, chain L [auth B] mmCIF format, chain C [auth A] mmCIF format, chain D [auth A] mmCIF format, chain E [auth A] mmCIF format, chain F [auth A] mmCIF format, chain G [auth A] mmCIF format, chain H [auth A] mmCIF format, chain I [auth A] mmCIF format, chain K [auth B] mmCIF format, chain M [auth B] mmCIF format, chain O [auth B] mmCIF format, chain P [auth B] mmCIF format, chain L [auth B]	C [auth A] D [auth A] E [auth A] F [auth A] G [auth A] C [auth A], D [auth A], E [auth A], F [auth A], G [auth A], H [auth A], I [auth A], K [auth B], L [auth B], M [auth B], O [auth B], P [auth B]	SULFATE ION O₄ S QAOWNCQODCNURD-UHFFFAOYSA-L		Interactions Focus chain C [auth A] Focus chain D [auth A] Focus chain E [auth A] Focus chain F [auth A] Focus chain G [auth A] Focus chain H [auth A] Focus chain I [auth A] Focus chain K [auth B] Focus chain L [auth B] Focus chain M [auth B] Focus chain O [auth B] Focus chain P [auth B] Interactions & Density Focus chain C [auth A] Focus chain D [auth A] Focus chain E [auth A] Focus chain F [auth A] Focus chain G [auth A] Focus chain H [auth A] Focus chain I [auth A] Focus chain K [auth B] Focus chain L [auth B] Focus chain M [auth B] Focus chain O [auth B] Focus chain P [auth B]
CL Query on CL Download Ideal Coordinates CCD File SDF format, chain N [auth B] MOL2 format, chain N [auth B] mmCIF format, chain N [auth B]	N [auth B]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M		Interactions Focus chain N [auth B] Interactions & Density Focus chain N [auth B]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.75 Å
R-Value Free: 0.261 (Depositor), 0.260 (DCC)
R-Value Work: 0.215 (Depositor), 0.218 (DCC)
R-Value Observed: 0.218 (Depositor)

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 103.557	α = 90
b = 53.602	β = 108.19
c = 127.962	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
Aimless	data scaling
XDS	data reduction
PHASER	phasing
PDB_EXTRACT	data extraction

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Released Date: 2025-12-24

Deposition Author(s):

Seattle Structural Genomics Center for Infectious Disease

Seattle Structural Genomics Center for Infectious Disease (SSGCID)

Funding Organization	Location	Grant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	75N93022C00036
National Institutes of Health/Office of the Director	United States	S10OD030394