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6s6s

Structure of Azospirillum brasilense Glutamate Synthase in a4b4 oligomeric state.

Method: ELECTRON MICROSCOPY
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Glutamate synthase [NADPH] large chain

Azospirillum brasilense

UniProt Q05755

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 8 Glutamate synthase [NADPH] small chain × 4 （Q05756） FLAVIN MONONUCLEOTIDE × 4 FE3-S4 CLUSTER × 4 IRON/SULFUR CLUSTER × 8 FLAVIN-ADENINE DINUCLEOTIDE × 4 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
1ea0 1ea0

2 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
2vdc 6s6s 6s6t 6s6u 6s6x

5 assemblies

View Construct and Data Evidence
UniProt name GLTB_AZOBR
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–1515； UniProt 1–1515 Author chain B； PDBConstruct 1–1515； UniProt 1–1515 Author chain C； PDBConstruct 1–1515； UniProt 1–1515 Author chain D； PDBConstruct 1–1515； UniProt 1–1515

Glutamate synthase [NADPH] small chain

Azospirillum brasilense

UniProt Q05756

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 8 Glutamate synthase [NADPH] large chain × 4 （Q05755） FLAVIN MONONUCLEOTIDE × 4 FE3-S4 CLUSTER × 4 IRON/SULFUR CLUSTER × 8 FLAVIN-ADENINE DINUCLEOTIDE × 4 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
2vdc 6s6s 6s6t 6s6u 6s6x

5 assemblies

View Construct and Data Evidence
UniProt name GLTD_AZOBR
Isoform —
PDB entities 2
Chains and sequence ranges Author chain E； PDBConstruct 1–482； UniProt 1–482 Author chain F； PDBConstruct 1–482； UniProt 1–482 Author chain G； PDBConstruct 1–482； UniProt 1–482 Author chain H； PDBConstruct 1–482； UniProt 1–482

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_id6s6s
Deposition date deposition_date2019-07-03
Structure title titleStructure of Azospirillum brasilense Glutamate Synthase in a4b4 oligomeric state.
Keywords keywordsglutamate synthesys, complex, oligomeric assemblies, FLAVOPROTEIN; FLAVOPROTEIN
Experimental Method methodELECTRON MICROSCOPY
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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.

6s6s__assembly_1__model_1

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

Download this curve (.dat)

6s6s__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 109 1010 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

6s6s__assembly_1__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg（Guinier）73.28 Å
Rg (electron density)72.78 Å
Total Rg72.83 Å
Atom count60044
Residues7752
Excluded volume1064000 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 6s6s__assembly_1__model_1 octameric （8） 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 (6)

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6. Fold Classification (SCOP + CATH) 16 domains

CATH v4.4 (16 domains)

Domain ID domain_id6s6sA01
Class class3 — Alpha Beta
Architecture architecture60 — 4-Layer Sandwich
Topology topology20 — Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1
Homologous superfamily homologous superfamily10 — Aminohydrolase, N-terminal nucleophile (Ntn) domain
Domain ID domain_id6s6sA02
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology20 — TIM Barrel
Homologous superfamily homologous superfamily70 — Aldolase class I
Domain ID domain_id6s6sA03
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology20 — TIM Barrel
Homologous superfamily homologous superfamily70 — Aldolase class I
Domain ID domain_id6s6sA04
Class class2 — Mainly Beta
Architecture architecture160 — 3 Solenoid
Topology topology20 — Pectate Lyase C-like
Homologous superfamily homologous superfamily60 — Glutamate synthase, alpha subunit, C-terminal domain
Domain ID domain_id6s6sB01
Class class3 — Alpha Beta
Architecture architecture60 — 4-Layer Sandwich
Topology topology20 — Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1
Homologous superfamily homologous superfamily10 — Aminohydrolase, N-terminal nucleophile (Ntn) domain
Domain ID domain_id6s6sB02
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology20 — TIM Barrel
Homologous superfamily homologous superfamily70 — Aldolase class I
Domain ID domain_id6s6sB03
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology20 — TIM Barrel
Homologous superfamily homologous superfamily70 — Aldolase class I
Domain ID domain_id6s6sB04
Class class2 — Mainly Beta
Architecture architecture160 — 3 Solenoid
Topology topology20 — Pectate Lyase C-like
Homologous superfamily homologous superfamily60 — Glutamate synthase, alpha subunit, C-terminal domain
Domain ID domain_id6s6sC01
Class class3 — Alpha Beta
Architecture architecture60 — 4-Layer Sandwich
Topology topology20 — Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1
Homologous superfamily homologous superfamily10 — Aminohydrolase, N-terminal nucleophile (Ntn) domain
Domain ID domain_id6s6sC02
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology20 — TIM Barrel
Homologous superfamily homologous superfamily70 — Aldolase class I
Domain ID domain_id6s6sC03
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology20 — TIM Barrel
Homologous superfamily homologous superfamily70 — Aldolase class I
Domain ID domain_id6s6sC04
Class class2 — Mainly Beta
Architecture architecture160 — 3 Solenoid
Topology topology20 — Pectate Lyase C-like
Homologous superfamily homologous superfamily60 — Glutamate synthase, alpha subunit, C-terminal domain
Domain ID domain_id6s6sD01
Class class3 — Alpha Beta
Architecture architecture60 — 4-Layer Sandwich
Topology topology20 — Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1
Homologous superfamily homologous superfamily10 — Aminohydrolase, N-terminal nucleophile (Ntn) domain
Domain ID domain_id6s6sD02
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology20 — TIM Barrel
Homologous superfamily homologous superfamily70 — Aldolase class I
Domain ID domain_id6s6sD03
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology20 — TIM Barrel
Homologous superfamily homologous superfamily70 — Aldolase class I
Domain ID domain_id6s6sD04
Class class2 — Mainly Beta
Architecture architecture160 — 3 Solenoid
Topology topology20 — Pectate Lyase C-like
Homologous superfamily homologous superfamily60 — Glutamate synthase, alpha subunit, C-terminal domain
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7. Citations (1)