ISDA

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:

Helicobacter pylori

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2012-06-01

Release Date:

2012-09-26

Method Details:

Experimental Method:

X-RAY DIFFRACTION

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

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:MTA/SAH nucleosidase
Chain IDs:A
Chain Length:239
Number of Molecules:1
Biological Source:Helicobacter pylori

UniProt ID:Q9ZMY2 Pfam ID:PF01048 EC:3.2.2.16

Ligand Molecules

BIG

Primary Citation

A Picomolar Transition State Analogue Inhibitor of MTAN as a Specific Antibiotic for Helicobacter pylori.

Wang, S, Haapalainen, A.M, Yan, F, Du, Q, Tyler, P.C, Evans, G.B, Rinaldo-Matthis, A, Brown, R.L, Norris, G.E, Almo, S.C, Schramm, V.L.Show

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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Protein

Chemical

Disease

Primary Citation of related structures