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- PDB-8etl: Co-crystal structure of Chaetomium glucosidase with compound 24 -

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Basic information

Entry
Database: PDB / ID: 8etl
TitleCo-crystal structure of Chaetomium glucosidase with compound 24
ComponentsChaetomium alpha glucosidase
KeywordsHYDROLASE/INHIBITOR / alpha glucosidase I / Hydrolase / Inhibitor complex / HYDROLASE-INHIBITOR complex
Function / homology
Function and homology information


mannosyl-oligosaccharide glucosidase / Glc3Man9GlcNAc2 oligosaccharide glucosidase activity / oligosaccharide metabolic process / protein N-linked glycosylation / endoplasmic reticulum membrane
Similarity search - Function
Glycosyl hydrolase family 63, C-terminal / Glycosyl hydrolase family 63, N-terminal / Glycosyl hydrolase family 63, N-terminal domain superfamily / Glycosyl hydrolase family 63 C-terminal domain / Glycosyl hydrolase family 63 N-terminal domain / Glycoside hydrolase family 63 / Six-hairpin glycosidase-like superfamily / Six-hairpin glycosidase superfamily
Similarity search - Domain/homology
Chem-VND / Mannosyl-oligosaccharide glucosidase
Similarity search - Component
Biological speciesThermochaetoides thermophila (fungus)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.3 Å
AuthorsKarade, S.S. / Mariuzza, R.A.
Funding support1items
OrganizationGrant numberCountry
Not funded
CitationJournal: J.Med.Chem. / Year: 2023
Title: Structure-Based Design of Potent Iminosugar Inhibitors of Endoplasmic Reticulum alpha-Glucosidase I with Anti-SARS-CoV-2 Activity.
Authors: Karade, S.S. / Franco, E.J. / Rojas, A.C. / Hanrahan, K.C. / Kolesnikov, A. / Yu, W. / MacKerell Jr., A.D. / Hill, D.C. / Weber, D.J. / Brown, A.N. / Treston, A.M. / Mariuzza, R.A.
History
DepositionOct 17, 2022Deposition site: RCSB / Processing site: RCSB
Revision 1.0Feb 22, 2023Provider: repository / Type: Initial release
Revision 1.1Mar 1, 2023Group: Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first / _citation.page_last
Revision 1.2Oct 25, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model
Revision 1.3Nov 20, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature / Item: _pdbx_entry_details.has_protein_modification

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Chaetomium alpha glucosidase
B: Chaetomium alpha glucosidase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)188,87321
Polymers186,6402
Non-polymers2,23319
Water6,035335
1
A: Chaetomium alpha glucosidase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)94,52212
Polymers93,3201
Non-polymers1,20211
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
2
B: Chaetomium alpha glucosidase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)94,3519
Polymers93,3201
Non-polymers1,0318
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)135.598, 178.525, 180.299
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number23
Space group name H-MI222
Components on special symmetry positions
IDModelComponents
11B-1163-

HOH

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Components

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Protein , 1 types, 2 molecules AB

#1: Protein Chaetomium alpha glucosidase


Mass: 93319.812 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Thermochaetoides thermophila (fungus) / Strain: DSM 1495 / CBS 144.50 / IMI 039719 / Gene: CTHT_0061620 / Cell line (production host): Expi-HEK293 / Production host: Homo sapiens (human) / References: UniProt: G0SFD1

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Non-polymers , 5 types, 354 molecules

#2: Chemical ChemComp-VND / (1S,2S,3R,4S,5S)-5-(butylamino)-1-(hydroxymethyl)cyclohexane-1,2,3,4-tetrol


Mass: 249.304 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C11H23NO5 / Feature type: SUBJECT OF INVESTIGATION
#3: Chemical ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL


Mass: 92.094 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: C3H8O3
#4: Chemical
ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 13 / Source method: obtained synthetically / Formula: SO4
#5: Chemical ChemComp-BTB / 2-[BIS-(2-HYDROXY-ETHYL)-AMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL / BIS-TRIS BUFFER


Mass: 209.240 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C8H19NO5 / Comment: pH buffer*YM
#6: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 335 / Source method: isolated from a natural source / Formula: H2O

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Details

Has ligand of interestY
Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 3.02 Å3/Da / Density % sol: 59.22 %
Crystal growTemperature: 297 K / Method: vapor diffusion, hanging drop / pH: 6.5 / Details: 0.1 Bis Tris pH 6.5, 1.6-2.0 M Ammonium sulfate

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: APS / Beamline: 23-ID-D / Wavelength: 0.9793 Å
DetectorType: DECTRIS PILATUS3 6M / Detector: PIXEL / Date: Mar 14, 2021
RadiationMonochromator: Double crystal cryo-cooled Si(111) / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9793 Å / Relative weight: 1
ReflectionResolution: 2.3→46.83 Å / Num. obs: 96102 / % possible obs: 99.6 % / Redundancy: 6.7 % / CC1/2: 0.983 / Rmerge(I) obs: 0.183 / Rpim(I) all: 0.077 / Net I/σ(I): 14.09
Reflection shellResolution: 2.3→2.386 Å / Mean I/σ(I) obs: 1.33 / Num. unique obs: 9196 / CC1/2: 0.402 / Rpim(I) all: 0.792

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Processing

Software
NameVersionClassification
REFMAC5.8.0258refinement
PDB_EXTRACT3.27data extraction
HKL-2000v717.1data reduction
HKL-2000v717.1data scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 7T6W

7t6w


Resolution: 2.3→46.83 Å / Cor.coef. Fo:Fc: 0.959 / Cor.coef. Fo:Fc free: 0.934 / SU B: 7.522 / SU ML: 0.172 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.239 / ESU R Free: 0.203 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: U VALUES : REFINED INDIVIDUALLY
RfactorNum. reflection% reflectionSelection details
Rfree0.2323 4884 5.1 %RANDOM
Rwork0.1833 ---
obs0.1858 91216 99.65 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso max: 135.83 Å2 / Biso mean: 41.656 Å2 / Biso min: 18.02 Å2
Baniso -1Baniso -2Baniso -3
1-2.83 Å2-0 Å2-0 Å2
2---0.2 Å2-0 Å2
3----2.62 Å2
Refinement stepCycle: final / Resolution: 2.3→46.83 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms12142 0 131 337 12610
Biso mean--74.96 41.82 -
Num. residues----1529
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0080.01212620
X-RAY DIFFRACTIONr_angle_refined_deg1.6921.63917189
X-RAY DIFFRACTIONr_dihedral_angle_1_deg7.27151529
X-RAY DIFFRACTIONr_dihedral_angle_2_deg32.81522.287682
X-RAY DIFFRACTIONr_dihedral_angle_3_deg17.437151929
X-RAY DIFFRACTIONr_dihedral_angle_4_deg18.4321574
X-RAY DIFFRACTIONr_chiral_restr0.1340.21556
X-RAY DIFFRACTIONr_gen_planes_refined0.010.029894
LS refinement shellResolution: 2.304→2.364 Å / Rfactor Rfree error: 0 / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.325 308 -
Rwork0.289 6446 -
all-6754 -
obs--95.96 %

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