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- PDB-8ele: Co-crystal structure of Chaetomium glucosidase with compound 16 -

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Basic information

Entry
Database: PDB / ID: 8ele
TitleCo-crystal structure of Chaetomium glucosidase with compound 16
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-WM0 / Mannosyl-oligosaccharide glucosidase
Similarity search - Component
Biological speciesThermochaetoides thermophila (fungus)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.6 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
DepositionSep 23, 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 1.3Oct 30, 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

Downloads & links

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Assembly

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


Theoretical massNumber of molelcules
Total (without water)189,03517
Polymers186,6402
Non-polymers2,39515
Water73941
1
A: Chaetomium alpha glucosidase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)94,5039
Polymers93,3201
Non-polymers1,1838
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
2
B: Chaetomium alpha glucosidase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)94,5328
Polymers93,3201
Non-polymers1,2127
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)137.825, 178.729, 180.875
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number23
Space group name H-MI222

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Components

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Protein / Sugars , 2 types, 3 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
#5: Sugar ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Formula: C8H15NO6
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0

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Non-polymers , 4 types, 55 molecules

#2: Chemical ChemComp-WM0 / (2R,3R,4R,5S)-2-(hydroxymethyl)-1-{[4-({2-nitro-4-[(1R,5S)-3-oxa-8-azabicyclo[3.2.1]octan-8-yl]anilino}methyl)phenyl]methyl}piperidine-3,4,5-triol


Mass: 514.571 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C26H34N4O7 / Feature type: SUBJECT OF INVESTIGATION
#3: Chemical ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL


Mass: 92.094 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C3H8O3
#4: Chemical
ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 10 / Source method: obtained synthetically / Formula: SO4
#6: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 41 / 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: 2.98 Å3/Da / Density % sol: 58.78 %
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-B / Wavelength: 1.033 Å
DetectorType: DECTRIS EIGER X 16M / Detector: PIXEL / Date: Oct 4, 2021
RadiationMonochromator: Double crystal cryo-cooled Si(111) / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.033 Å / Relative weight: 1
ReflectionResolution: 2.6→47.03 Å / Num. obs: 68691 / % possible obs: 98.43 % / Redundancy: 8.9 % / CC1/2: 0.998 / CC star: 1 / Rmerge(I) obs: 0.08462 / Rpim(I) all: 0.02973 / Net I/σ(I): 12.94
Reflection shellResolution: 2.6→2.693 Å / Redundancy: 8.9 % / Rmerge(I) obs: 0.4675 / Mean I/σ(I) obs: 3.33 / Num. unique obs: 6561 / CC1/2: 0.944 / CC star: 0.985 / Rpim(I) all: 0.1642 / % possible all: 96.35

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Processing

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

7t6w


Resolution: 2.6→47.03 Å / Cor.coef. Fo:Fc: 0.957 / Cor.coef. Fo:Fc free: 0.929 / SU B: 12.836 / SU ML: 0.255 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.46 / ESU R Free: 0.289 / Stereochemistry target values: MAXIMUM LIKELIHOOD
Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS U VALUES : REFINED INDIVIDUALLY
RfactorNum. reflection% reflectionSelection details
Rfree0.2483 3446 5.1 %RANDOM
Rwork0.1907 ---
obs0.1936 64303 98.3 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso max: 149.47 Å2 / Biso mean: 59.76 Å2 / Biso min: 34.48 Å2
Baniso -1Baniso -2Baniso -3
1-4.08 Å2-0 Å2-0 Å2
2--0.71 Å2-0 Å2
3----4.79 Å2
Refinement stepCycle: final / Resolution: 2.6→47.03 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms12136 0 150 41 12327
Biso mean--84.09 51.01 -
Num. residues----1528
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0070.01312637
X-RAY DIFFRACTIONr_bond_other_d0.0010.01711120
X-RAY DIFFRACTIONr_angle_refined_deg1.5161.65317214
X-RAY DIFFRACTIONr_angle_other_deg1.2261.58425752
X-RAY DIFFRACTIONr_dihedral_angle_1_deg8.21951524
X-RAY DIFFRACTIONr_dihedral_angle_2_deg33.10122.312679
X-RAY DIFFRACTIONr_dihedral_angle_3_deg18.549151931
X-RAY DIFFRACTIONr_dihedral_angle_4_deg17.5851573
X-RAY DIFFRACTIONr_chiral_restr0.0650.21566
X-RAY DIFFRACTIONr_gen_planes_refined0.0090.0214258
X-RAY DIFFRACTIONr_gen_planes_other0.0020.022828
LS refinement shellResolution: 2.6→2.665 Å / Rfactor Rfree error: 0
RfactorNum. reflection% reflection
Rfree0.371 222 -
Rwork0.35 4457 -
obs--92.84 %

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