2WBG

Structure of family 1 beta-glucosidase from Thermotoga maritima in complex with 3-imino-2-oxa-(+)-castanospermine

PDB DOI: https://doi.org/10.2210/pdb2WBG/pdb

Classification: HYDROLASE
Organism(s): Thermotoga maritima
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2009-02-27 Released: 2009-04-14
Deposition Author(s): Aguilar, M., Gloster, T.M., Turkenburg, J.P., Garcia-Moreno, M.I., Ortiz Mellet, C., Davies, G.J., Garcia Fernandez, J.M.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.85 Å
R-Value Free: 0.199
R-Value Work: 0.153
R-Value Observed: 0.156

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

Ligand Structure Quality Assessment

This is version 1.2 of the entry. See complete history.

Literature

Glycosidase Inhibition by Ring-Modified Castanospermine Analogues: Tackling Enzyme Selectivity by Inhibitor Tailoring.

Aguilar-Moncayo, M., Gloster, T.M., Turkenburg, J.P., Garcia-Moreno, M.I., Ortiz Mellet, C., Davies, G.J., Garcia Fernandez, J.M.

(2009) Org Biomol Chem 7: 2738

PubMed: 19532990 Search on PubMed
DOI: https://doi.org/10.1039/b906968b
Primary Citation of Related Structures:
2WBG, 2WC3, 2WC4

PubMed Abstract:
Synthesis of a panel of iso(thio)urea-type ring-modified castanospermine analogues bearing a freely mutarotating pseudoanomeric hydroxyl group results in tight-binding beta-glucosidase inhibitors with unusual binding signatures; the presence of an N-octyl substituent imparts a remarkable anomeric selectivity, promoting strong binding of the appropriate beta-anomer by the beta-glucosidase.

Organizational Affiliation

Departamento de Química Orgánica, Facultad de Química, Universidad de Sevilla, Profesor García González 1, 41012, Sevilla, (Spain).

Macromolecule Content

Total Structure Weight: 217.09 kDa
Atom Count: 16,641
Modelled Residue Count: 1,772
Deposited Residue Count: 1,872
Unique protein chains: 1

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
BETA-GLUCOSIDASE A	A, B, C, D	468	Thermotoga maritima	Mutation(s): 0 EC: 3.2.1.21
UniProt
Find proteins for Q08638 (Thermotoga maritima (strain ATCC 43589 / DSM 3109 / JCM 10099 / NBRC 100826 / MSB8)) Explore Q08638 Go to UniProtKB: Q08638
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	Q08638
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
LGS Query on LGS Download Ideal Coordinates CCD File SDF format, chain E [auth A] SDF format, chain F [auth B] SDF format, chain G [auth C] SDF format, chain I [auth D] MOL2 format, chain E [auth A] MOL2 format, chain F [auth B] MOL2 format, chain G [auth C] MOL2 format, chain I [auth D] mmCIF format, chain E [auth A] mmCIF format, chain F [auth B] mmCIF format, chain G [auth C] mmCIF format, chain I [auth D]	E [auth A], F [auth B], G [auth C], I [auth D]	(3Z,5S,6R,7S,8R,8aR)-3-(octylimino)hexahydro[1,3]oxazolo[3,4-a]pyridine-5,6,7,8-tetrol C₁₅ H₂₈ N₂ O₅ QJILQIWQVOAQBB-KRIYVDMXSA-N		Interactions Focus chain E [auth A] Focus chain F [auth B] Focus chain G [auth C] Focus chain I [auth D] Interactions & Density Focus chain E [auth A] Focus chain F [auth B] Focus chain G [auth C] Focus chain I [auth D]
ACT Query on ACT Download Ideal Coordinates CCD File SDF format, chain H [auth C] MOL2 format, chain H [auth C] mmCIF format, chain H [auth C]	H [auth C]	ACETATE ION C₂ H₃ O₂ QTBSBXVTEAMEQO-UHFFFAOYSA-M		Interactions Focus chain H [auth C] Interactions & Density Focus chain H [auth C]

Binding Affinity Annotations
ID	Source	Binding Affinity
LGS	PDBBind: 2WBG	Ki: 3.52e+4 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 1.85 Å
R-Value Free: 0.199
R-Value Work: 0.153
R-Value Observed: 0.156
Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 89.989	α = 90
b = 73.187	β = 94.03
c = 138.085	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing

Structure Validation

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Ligand Structure Quality Assessment

Entry History

Deposition Data

Released Date: 2009-04-14

Deposition Author(s):

Garcia Fernandez, J.M.

Revision History (Full details and data files)

Version 1.0: 2009-04-14
Type: Initial release
Version 1.1: 2012-08-01
Changes: Database references, Derived calculations, Non-polymer description, Other, Refinement description, Version format compliance
Version 1.2: 2023-12-13
Changes: Data collection, Database references, Derived calculations, Other, Refinement description