ISDA

Entry Detail

PDB ID:

2JJB

Keywords:

HYDROLASE

Title:

Family 37 trehalase from Escherichia coli in complex with casuarine-6- O-alpha-glucopyranose

Biological Source:

Source Organism:

ESCHERICHIA COLI

Host Organism:

ESCHERICHIA COLI

PDB Version:

Deposition Date:

2008-03-28

Release Date:

2009-01-13

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.90 Å

R-Value Free:

0.22

R-Value Work:

0.17

R-Value Observed:

0.17

Space Group:

P 21 21 21

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:PERIPLASMIC TREHALASE
Chain IDs:A, B, C, D
Chain Length:535
Number of Molecules:4
Biological Source:ESCHERICHIA COLI

UniProt ID:P13482 Pfam ID:PF01204 EC:3.2.1.28

Ligand Molecules

3CU

EDO

GLC

SO4

Primary Citation

Total Syntheses of Casuarine and its 6-O-Alpha-Glucoside: Complementary Inhibition Towards Glycoside Hydrolases of the Gh31 and Gh37 Families.

Cardona, F, Parmeggiani, C, Faggi, E, Bonaccini, C, Gratteri, P, Sim, L, Gloster, T.M, Roberts, S, Davies, G.J, Rose, D.R, Goti, A.Show

Chemistry 15 1627 ? (2009)

PMID: 19123216 DOI: 10.1002/CHEM.200801578

Abstact

Total synthesis of naturally occurring casuarine (1) and the first total synthesis of casuarine 6-O-alpha-glucoside (2) were achieved through complete stereoselective nitrone cycloaddition, Tamao-Fleming oxidation and selective alpha-glucosylation as key steps. Biological assays of the two compounds proved their strong and selective inhibitory properties towards glucoamylase NtMGAM and trehalase Tre37A, respectively, which place them among the most powerful inhibitors of these enzymes. The structural determination of the complexes of NtMGAM with 1 and of Tre37A with 2 revealed interesting similarities in the catalytic sites of these two enzymes which belong to different families and clans.

Legend

Protein

Chemical

Disease

Primary Citation of related structures