ISDA: 3RX7

Deposition Date 2011-05-10

Release Date 2011-08-24

Last Version Date 2023-09-13

Entry Detail

PDB ID:

3RX7

Keywords:

HYDROLASE/HYDROLASE INHIBITOR

Title:

Structure of AaCel9A in complex with cellotetraose-like isofagomine

Biological Source:

Source Organism:

Alicyclobacillus acidocaldarius subsp. acidocaldarius (Taxon ID: 1388)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.02 Å

R-Value Free:

0.20

R-Value Work:

0.17

R-Value Observed:

0.17

Space Group:

P 21 21 2

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cellulase
Gene (Uniprot):celA
Chain IDs:A
Chain Length:537
Number of Molecules:1
Biological Source:Alicyclobacillus acidocaldarius subsp. acidocaldarius

UniProt ID:Q9AJS0 Pfam ID:PF02927, PF00759 EC:3.2.1.203

Ligand Molecules

9MR

G3I

Primary Citation

Fortuitious binding of inhibitors-derived isofagomine for inverting GH9 beta-glycosidases

Morera, S, Vigouroux, A, Stubbs, K.A.Show

Org.Biomol.Chem. 9 5945 5947 (2011)

PMID: 21785782 DOI: 10.1039/c1ob05766a

Abstact

Using structural insight, the binding mode of isofagomine-derived inhibitors with family GH9 glycosidases is achieved via the study of Alicyclobacillus acidocaldarius (AaCel9A) endoglucanase. In contrast to what was observed in the first report using these compounds with inverting glycosidases from family GH6, these inhibitors do not adopt a distorted conformation in the active site.

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Primary Citation of related structures