7ZD3 image
Entry Detail
PDB ID:
7ZD3
Keywords:
HYDROLASE
Title:
Crystal structure of Pseudomonas aeruginosa S-adenosyl-L-homocysteine hydrolase inhibited by Zn2+ ions
Biological Source:
Source Organism:
Pseudomonas aeruginosa PAO1
Host Organism:
Escherichia coli
PDB Version:
Deposition Date:
2022-03-29
Release Date:
2023-04-19
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.90 Å
R-Value Free:
0.22
R-Value Work:
0.17
R-Value Observed:
0.17
Space Group:
C 1 2 1
7ZD3 validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Description:Adenosylhomocysteinase
Chain IDs:A, B, C, D
Chain Length:472
Number of Molecules:4
Biological Source:Pseudomonas aeruginosa PAO1
UniProt ID:Q9I685 Pfam ID:PF05221, PF00670 EC:3.3.1.1
Ligand Molecules
ADN
BCN
BU1
CL
HEZ
K
NAD
PDO
PG4
ZN
Primary Citation
A closer look at molecular mechanisms underlying inhibition of S -adenosyl-L-homocysteine hydrolase by transition metal cations.
Chem.Commun.(Camb.) 60 11504 11507 (2024)
PMID: 39230573 DOI: 10.1039/d4cc03143a

Abstact

We report biochemical and structural studies on inhibiting bacterial S-adenosyl-L-homocysteine hydrolase by transition metal cations. Our results revealed diverse molecular mechanisms of enzyme inactivation. Depending on the cation, the mechanism is based on arresting the enzyme in its closed, inactive conformation, disulfide bond formation within the active site or oxidation of the intermediate form of a cofactor.

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Primary Citation of related structures
7ZD3