4FFS image
Entry Detail
PDB ID:
4FFS
Keywords:
Title:
Crystal structure of 5'-methylthioadenosine/S-adenosylhomocysteine nucleosidase from Helicobacter pylori with butyl-thio-DADMe-Immucillin-A
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2012-06-01
Release Date:
2012-09-26
Method Details:
Experimental Method:
Resolution:
1.90 Å
R-Value Free:
0.19
R-Value Work:
0.16
R-Value Observed:
0.16
Space Group:
I 4 3 2
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:MTA/SAH nucleosidase
Chain IDs:A
Chain Length:239
Number of Molecules:1
Biological Source:Helicobacter pylori
Primary Citation
A Picomolar Transition State Analogue Inhibitor of MTAN as a Specific Antibiotic for Helicobacter pylori.
Biochemistry 51 6892 6894 (2012)
PMID: 22891633 DOI: 10.1021/bi3009664

Abstact

Campylobacter and Helicobacter species express a 6-amino-6-deoxyfutalosine N-ribosylhydrolase (HpMTAN) proposed to function in menaquinone synthesis. BuT-DADMe-ImmA is a 36 pM transition state analogue of HpMTAN, and the crystal structure of the enzyme-inhibitor complex reveals the mechanism of inhibition. BuT-DADMe-ImmA has a MIC(90) value of <8 ng/mL for Helicobacter pylori growth but does not cause growth arrest in other common clinical pathogens, thus demonstrating potential as an H. pylori-specific antibiotic.

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Primary Citation of related structures