ISDA

Deposition Date 2015-09-13

Release Date 2015-10-28

Last Version Date 2024-05-01

Entry Detail

PDB ID:

5DPN

Keywords:

SUGAR BINDING PROTEIN

Title:

Engineered CBM X-2 L110F in complex with branched carbohydrate XXXG.

Biological Source:

Source Organism:

Rhodothermus marinus (Taxon ID: 29549)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION, NEUTRON DIFFRACTION

R-Value Free:

['0.25

R-Value Work:

['0.22

R-Value Observed:

['0.22

Space Group:

P 21 21 2

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Xylanase
Mutations:L110F
Chain IDs:A
Chain Length:167
Number of Molecules:1
Biological Source:Rhodothermus marinus

UniProt ID:Q7WTN6 Pfam ID:PF02018

Ligand Molecules

DOD

Primary Citation

Neutron Crystallographic Studies Reveal Hydrogen Bond and Water-Mediated Interactions between a Carbohydrate-Binding Module and Its Bound Carbohydrate Ligand.

Fisher, S.Z, von Schantz, L, Hakansson, M, Logan, D.T, Ohlin, M.Show

Biochemistry 54 6435 6438 (2015)

PMID: 26451738 DOI: 10.1021/acs.biochem.5b01058

Abstact

Carbohydrate-binding modules (CBMs) are key components of many carbohydrate-modifying enzymes. CBMs affect the activity of these enzymes by modulating bonding and catalysis. To further characterize and study CBM-ligand binding interactions, neutron crystallographic studies of an engineered family 4-type CBM in complex with a branched xyloglucan ligand were conducted. The first neutron crystal structure of a CBM-ligand complex reported here shows numerous atomic details of hydrogen bonding and water-mediated interactions and reveals the charged state of key binding cleft amino acid side chains.

Legend

Protein

Chemical

Disease

Primary Citation of related structures