9WRL | pdb_00009wrl

Cryo-EM structure of glutamine synthetase 3 from Mycobacterium tuberculosis

PDB DOI: https://doi.org/10.2210/pdb9WRL/pdb
EM Map EMD-66189: EMDB EMDataResource

Classification: LIGASE
Organism(s): Mycobacterium tuberculosis H37Rv
Expression System: Escherichia coli BL21(DE3)
Mutation(s): No

Deposited: 2025-09-12 Released: 2026-09-16
Deposition Author(s): Lin, W., Chen, Y.
Funding Organization(s): National Natural Science Foundation of China (NSFC)

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 3.20 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

wwPDB Validation 3D Report Full Report

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

Literature

Cryo-EM structure of glutamine synthetase 3 from Mycobacterium tuberculosis

Lin, W., Chen, Y.

To be published.

Macromolecule Content

Total Structure Weight: 280.57 kDa
Atom Count: 19,716
Modeled Residue Count: 2,700
Deposited Residue Count: 2,700
Unique protein chains: 1

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Probable glutamine synthetase GlnA3 (Glutamine synthase) (GS-I)	A, B, C, D, E A, B, C, D, E, F	450	Mycobacterium tuberculosis H37Rv	Mutation(s): 0 Gene Names: glnA3, Rv1878
UniProt
Find proteins for O07752 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)) Explore O07752 Go to UniProtKB: O07752
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	O07752
Sequence Annotations Expand
Reference Sequence

Experimental Data & Validation

Experimental Data

Method: ELECTRON MICROSCOPY
Resolution: 3.20 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.20.1_4487:
RECONSTRUCTION	cryoSPARC

Structure Validation

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Entry History

& Funding Information

Deposition Data

Released Date: 2026-09-16

Deposition Author(s):

Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	--

Revision History (Full details and data files)

Version 1.0: 2026-09-16
Type: Initial release

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.