2qr6

Crystal structure of IMP dehydrogenase/GMP reductase-like protein (NP_599840.1) from Corynebacterium glutamicum ATCC 13032 Kitasato at 1.50 A resolution

Method: X-RAY DIFFRACTION

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1. Protein Identity and Related Structures Protein Identity & Related Structures

IMP dehydrogenase/GMP reductase

Corynebacterium glutamicum ATCC 13032

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 4	water × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q8NSR4_CORGL
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 20–393； UniProt 1–374

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	2qr6
Deposition date deposition_date	2007-07-27
Structure title title	Crystal structure of IMP dehydrogenase/GMP reductase-like protein (NP_599840.1) from Corynebacterium glutamicum ATCC 13032 Kitasato at 1.50 A resolution
Keywords keywords	;NP_599840.1, IMP dehydrogenase/GMP reductase-like protein, GMP reductase domain, Structural Genomics, Joint Center for Structural Genomics, JCSG, Protein Structure Initiative, PSI-2, OXIDOREDUCTASE ;; OXIDOREDUCTASE
Experimental Method method	X-RAY DIFFRACTION

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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

2qr6__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

2qr6__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2qr6__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	35.08 Å
Rg (electron density)	34.51 Å
Total Rg	34.92 Å
Atom count	10908
Residues	1452
Excluded volume	193910 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2qr6__assembly_1__model_1`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download

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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (2)

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6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id	2qr6A01
Class class	2 — Mainly Beta
Architecture architecture	10 — Ribbon
Topology topology	50 — Tumor Necrosis Factor Receptor, subunit A; domain 2
Homologous superfamily homologous superfamily	20 — Inosine monophosphate dehydrogenase (IMPDH)

Domain ID domain_id	2qr6A02
Class class	3 — Alpha Beta
Architecture architecture	20 — Alpha-Beta Barrel
Topology topology	20 — TIM Barrel
Homologous superfamily homologous superfamily	70 — Aldolase class I

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Unit-cell length a length_a	127.130 Å
Unit-cell length b length_b	127.130 Å
Unit-cell length c length_c	54.850 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	8

Space group space_group	I 4
Space-group number int_tables_number	79
Crystal system crystal_system	—

Resolution resolution	1.500 Å
Low-resolution limit resolution_low	29.656 Å
R factor r_factor	0.1700
R_work r_work	0.1690
R_free r_free	0.1880

Description description	IMP dehydrogenase/GMP reductase
Molecular weight formula_weight	42550.4 kDa
Source method src_method	man
Copy count entity_count	1

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	3147

Crystal structure of IMP dehydrogenase/GMP reductase-like protein (NP_599840.1) from Corynebacterium glutamicum ATCC 13032 Kitasato at 1.50 A resolution

1. Protein Identity and Related Structures Protein Identity & Related Structures

IMP dehydrogenase/GMP reductase

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

2qr6__assembly_1__model_1

2qr6__assembly_1__model_1 | I(q)

2qr6__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

7. Citations (1)

Source organism organism	Corynebacterium glutamicum ATCC 13032
NCBI taxonomy ID ncbi_taxonomy_id	196627
Host organism host_organism	Escherichia coli

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	285

Crystal structure of IMP dehydrogenase/GMP reductase-like protein (NP_599840.1) from Corynebacterium glutamicum ATCC 13032 Kitasato at 1.50 A resolution

1. Protein Identity and Related Structures Protein Identity & Related Structures

IMP dehydrogenase/GMP reductase

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

2qr6__assembly_1__model_1

2qr6__assembly_1__model_1 | I(q)

2qr6__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

7. Citations (1)