Homology modeling, molecular docking, and molecular dynamics simulation have been performed to determine human 15-hydroxyprostaglandin dehydrogenase (15-PGDH) binding with its NAD+ cofactor and prostaglandin E2 (PGE2) substrate. The computational studies have led to a three-dimensional (3D) model of the entire 15-PGDH-NAD+-PGE 2 complex, demonstrating the detailed binding of PGE2 with 15-PGDH for the first time. This 3D model shows specific interactions of the protein with the cofactor and substrate in qualitative agreement with available experimental data. Our model demonstrates the PGE2-binding cavity of the protein for the first time. The model further leads to an interesting prediction that the catalytic activity of 15-PGDH should also significantly be affected by Gln148, in addition to the previously known three catalytic residues (Ser138, Tyr151, and Lys155). The reported 3D model of 15-PGDH-NAD +-PGE2 complex might be valuable for future rational design of novel inhibitors of 15-PGDH.
|Number of pages||8|
|Journal||Bioorganic and Medicinal Chemistry|
|State||Published - Jul 15 2005|
Bibliographical noteFunding Information:
The research was supported in part by the College of Pharmacy and Center for Computational Sciences (CCS) at University of Kentucky.
- 15-Hydroxyprostaglandin dehydrogenase
- Molecular dynamics
- Molecular modeling
ASJC Scopus subject areas
- Molecular Medicine
- Molecular Biology
- Pharmaceutical Science
- Drug Discovery
- Clinical Biochemistry
- Organic Chemistry