ISDA

Entry Detail

PDB ID:

6WY0

Keywords:

Title:

CRYSTAL STRUCTURE OF MYELOPEROXIDASE SUBFORM C (MPO) COMPLEX WITH Compound-40 A.K.A 7-[(1R)-1-phenyl-3-{[(1r,4r)-4-phenylcyclohexyl]amino}propyl]-3H-[1,2,3]triazolo[4,5-b]pyridin-5-amine

Biological Source:

Source Organism:

Homo sapiens

PDB Version:

Deposition Date:

2020-05-12

Release Date:

2020-10-14

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.80 Å

R-Value Free:

0.21

R-Value Work:

0.18

R-Value Observed:

0.18

Space Group:

C 2 2 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Myeloperoxidase light chain
Chain IDs:A, C (auth: D), E (auth: F), G (auth: H)
Chain Length:105
Number of Molecules:4
Biological Source:Homo sapiens

UniProt ID:P05164 Pfam ID:PF03098 EC:1.11.2.2

Protein Blast

Polymer Type:polypeptide(L)
Description:Myeloperoxidase heavy chain
Chain IDs:B, D (auth: E), F (auth: G), H (auth: I)
Chain Length:467
Number of Molecules:4
Biological Source:Homo sapiens

UniProt ID:P05164 Pfam ID:PF03098 EC:1.11.2.2

Modified Residue

Compound ID	Chain ID	Parent Comp ID	Details	2D Image
CSO	B	CYS	modified residue

Ligand Molecules

HEC

NAG

UFA

Primary Citation

Discovery and structure activity relationships of 7-benzyl triazolopyridines as stable, selective, and reversible inhibitors of myeloperoxidase.

Shaw, S.A, Vokits, B.P, Dilger, A.K, Viet, A, Clark, C.G, Abell, L.M, Locke, G.A, Duke, G, Kopcho, L.M, Dongre, A, Gao, J, Krishnakumar, A, Jusuf, S, Khan, J, Spronk, S.A, Basso, M.D, Zhao, L, Cantor, G.H, Onorato, J.M, Wexler, R.R, Duclos, F, Kick, E.K.Show

Bioorg.Med.Chem. 28 115723 115723 (2020)

PMID: 33007547 DOI: 10.1016/j.bmc.2020.115723

Abstact

Myeloperoxidase (MPO) is a heme peroxidase found in neutrophils, monocytes and macrophages that efficiently catalyzes the oxidation of endogenous chloride into hypochlorous acid for antimicrobial activity. Chronic MPO activation can lead to indiscriminate protein modification causing tissue damage, and has been associated with chronic inflammatory diseases, atherosclerosis, and acute cardiovascular events. Triazolopyrimidine 5 is a reversible MPO inhibitor; however it suffers from poor stability in acid, and is an irreversible inhibitor of the DNA repair protein methyl guanine methyl transferase (MGMT). Structure-based drug design was employed to discover benzyl triazolopyridines with improved MPO potency, as well as acid stability, no reactivity with MGMT, and selectivity against thyroid peroxidase (TPO). Structure-activity relationships, a crystal structure of the MPO-inhibitor complex, and acute in vivo pharmacodynamic data are described herein.

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