ISDA

Entry Detail

PDB ID:

2X0H

Keywords:

HYDROLASE

Title:

BtGH84 Michaelis complex

Biological Source:

Source Organism:

BACTEROIDES THETAIOTAOMICRON VPI-5482

Host Organism:

ESCHERICHIA COLI

PDB Version:

Deposition Date:

2009-12-08

Release Date:

2010-01-26

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.21 Å

R-Value Free:

0.22

R-Value Work:

0.19

R-Value Observed:

0.19

Space Group:

P 2 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:O-GLCNACASE BT_4395
Chain IDs:A, B
Chain Length:737
Number of Molecules:2
Biological Source:BACTEROIDES THETAIOTAOMICRON VPI-5482

UniProt ID:Q89ZI2 Pfam ID:PF02838, PF07555, PF21809, PF18344 EC:3.2.1.169

Ligand Molecules

14T

GOL

Primary Citation

Visualizing the Reaction Coordinate of an O-Glcnac Hydrolase

He, Y, Macauley, M.S, Stubbs, K.A, Vocadlo, D.J, Davies, G.J.Show

J.Am.Chem.Soc. 132 1807 ? (2010)

PMID: 20067256 DOI: 10.1021/JA9086769

Abstact

N-Acetylglucosamine beta-O-linked to serine and threonine residues of nucleocytoplasmic proteins (O-GlcNAc) has been linked to neurodegeneration, cellular stress response, and transcriptional regulation. Removal of O-GlcNAc is catalyzed by O-GlcNAcase (OGA) using a substrate-assisted catalytic mechanism. Here we define the reaction coordinate using chemical approaches and directly observe both a Michaelis complex and the oxazoline intermediate.

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Primary Citation of related structures