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- PDB-8v22: GlnA dodecamer with AMPylation -

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Basic information

Entry
Database: PDB / ID: 8v22
TitleGlnA dodecamer with AMPylation
ComponentsGlutamine synthetase
KeywordsLIGASE / AMPylation / adenyltransferase
Function / homology
Function and homology information


ammonia assimilation cycle / nitrogen utilization / glutamine synthetase / glutamine biosynthetic process / glutamine synthetase activity / response to radiation / ATP binding / metal ion binding / identical protein binding / membrane ...ammonia assimilation cycle / nitrogen utilization / glutamine synthetase / glutamine biosynthetic process / glutamine synthetase activity / response to radiation / ATP binding / metal ion binding / identical protein binding / membrane / cytosol / cytoplasm
Similarity search - Function
Glutamine synthetase class-I, adenylation site / Glutamine synthetase class-I adenylation site. / Glutamine synthetase type I / Glutamine synthetase, N-terminal conserved site / Glutamine synthetase signature 1. / Glutamine synthetase, beta-Grasp domain / Glutamine synthetase, glycine-rich site / Glutamine synthetase putative ATP-binding region signature. / Glutamine synthetase (GS) beta-grasp domain profile. / Glutamine synthetase, N-terminal domain superfamily ...Glutamine synthetase class-I, adenylation site / Glutamine synthetase class-I adenylation site. / Glutamine synthetase type I / Glutamine synthetase, N-terminal conserved site / Glutamine synthetase signature 1. / Glutamine synthetase, beta-Grasp domain / Glutamine synthetase, glycine-rich site / Glutamine synthetase putative ATP-binding region signature. / Glutamine synthetase (GS) beta-grasp domain profile. / Glutamine synthetase, N-terminal domain superfamily / Glutamine synthetase, catalytic domain / Glutamine synthetase, N-terminal domain / Glutamine synthetase, catalytic domain / Glutamine synthetase (GS) catalytic domain profile. / Glutamine synthetase, catalytic domain / Glutamine synthetase/guanido kinase, catalytic domain
Similarity search - Domain/homology
: / Glutamine synthetase
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.2 Å
AuthorsHan, Y. / Sreelatha, A. / Gonzalez, A. / Chen, Z.
Funding support United States, 4items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of Diabetes and Digestive and Kidney Disease (NIH/NIDDK)DK123194 United States
Cancer Prevention and Research Institute of Texas (CPRIT)RR190106 United States
Welch FoundationI-2046-20200401 United States
Welch FoundationI-2046-20230405 United States
CitationJournal: To Be Published
Title: GlnA dodecamer with AMPylation
Authors: Gonzalez, A. / Sreelatha, A.
History
DepositionNov 21, 2023Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 27, 2024Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
C: Glutamine synthetase
D: Glutamine synthetase
F: Glutamine synthetase
H: Glutamine synthetase
I: Glutamine synthetase
J: Glutamine synthetase
L: Glutamine synthetase
A: Glutamine synthetase
B: Glutamine synthetase
G: Glutamine synthetase
E: Glutamine synthetase
K: Glutamine synthetase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)631,52624
Polymers630,86712
Non-polymers65912
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

#1: Protein
Glutamine synthetase / GS / Glutamate--ammonia ligase / Glutamine synthetase I beta / GSI beta


Mass: 52572.250 Da / Num. of mol.: 12
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli) / Gene: glnA, b3870, JW3841 / Production host: Escherichia coli (E. coli) / References: UniProt: P0A9C5, glutamine synthetase
#2: Chemical
ChemComp-MN / MANGANESE (II) ION


Mass: 54.938 Da / Num. of mol.: 12 / Source method: obtained synthetically / Formula: Mn
Has ligand of interestN
Has protein modificationN

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: GlnA dodecamer / Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT
Molecular weightValue: 0.6 MDa / Experimental value: NO
Source (natural)Organism: Escherichia coli (E. coli)
Source (recombinant)Organism: Escherichia coli (E. coli)
Buffer solutionpH: 7.4
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal magnification: 105000 X / Nominal defocus max: 2200 nm / Nominal defocus min: 900 nm
Specimen holderSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingElectron dose: 60 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

EM software
IDNameVersionCategory
1Gautomatch0.56particle selection
2SerialEM4image acquisition
4GctfCTF correction
7UCSF Chimeramodel fitting
8Cootmodel fitting
10RELION4.0.1initial Euler assignment
11RELION4.0.1final Euler assignment
12RELION4.0.1classification
13RELION4.0.13D reconstruction
14PHENIX1.20.1_4487model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: C6 (6 fold cyclic)
3D reconstructionResolution: 2.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 495703 / Symmetry type: POINT
Atomic model buildingSpace: REAL
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00643194
ELECTRON MICROSCOPYf_angle_d0.48958394
ELECTRON MICROSCOPYf_dihedral_angle_d4.3675854
ELECTRON MICROSCOPYf_chiral_restr0.0446310
ELECTRON MICROSCOPYf_plane_restr0.0047714

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