ISDA

Deposition Date 2012-06-21

Release Date 2013-01-30

Last Version Date 2024-05-01

Entry Detail

PDB ID:

4AYQ

Keywords:

HYDROLASE

Title:

Structure of The GH47 processing alpha-1,2-mannosidase from Caulobacter strain K31 in complex with mannoimidazole

Biological Source:

Source Organism:

CAULOBACTER SP. (Taxon ID: 366602)

Host Organism:

ESCHERICHIA COLI

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.10 Å

R-Value Free:

0.10

R-Value Work:

0.08

R-Value Observed:

0.08

Space Group:

H 3

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:MANNOSYL-OLIGOSACCHARIDE 1,2-ALPHA-MANNOSIDASE
Gene (Uniprot):Caul_4035
Chain IDs:A
Chain Length:447
Number of Molecules:1
Biological Source:CAULOBACTER SP.

UniProt ID:B0SWV2 Pfam ID:PF01532

Ligand Molecules

MVL

PEG

Primary Citation

The Reaction Coordinate of a Bacterial Gh47 Alpha-Mannosidase: A Combined Quantum Mechanical and Structural Approach.

Thompson, A.J, Dabin, J, Iglesias-Fernandez, J, Ardevol, A, Dinev, Z, Williams, S.J, Bande, O, Siriwardena, A, Moreland, C, Hu, T.C, Smith, D.K, Gilbert, H.J, Rovira, C, Davies, G.J.Show

Angew.Chem.Int.Ed.Engl. 51 10997 ? (2012)

PMID: 23012075 DOI: 10.1002/ANIE.201205338

Abstact

Mannosides in the southern hemisphere: Conformational analysis of enzymatic mannoside hydrolysis informs strategies for enzyme inhibition and inspires solutions to mannoside synthesis. Atomic resolution structures along the reaction coordinate of an inverting α-mannosidase show how the enzyme distorts the substrate and transition state. QM/MM calculations reveal how the free energy landscape of isolated α-D-mannose is molded on enzyme to only allow one conformationally accessible reaction coordinate.

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Primary Citation of related structures