ISDA

Entry Detail

PDB ID:

7UDQ

Keywords:

TRANSFERASE/TRANSFERASE INHIBITOR

Title:

Crystal structure of COQ8A-CA157 inhibitor complex in space group P1

Biological Source:

Source Organism:

Homo sapiens

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2022-03-20

Release Date:

2023-01-18

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.90 Å

R-Value Free:

0.23

R-Value Work:

0.19

R-Value Observed:

0.19

Space Group:

P 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Atypical kinase COQ8A, mitochondrial
Chain IDs:A, B
Chain Length:393
Number of Molecules:2
Biological Source:Homo sapiens

UniProt ID:Q8NI60 Pfam ID:PF03109

Ligand Molecules

MVS

Primary Citation

Small-molecule inhibition of the archetypal UbiB protein COQ8.

Murray, N.H, Asquith, C.R.M, Fang, Z, East, M.P, Ptak, N, Smith, R.W, Vasta, J.D, Zimprich, C.A, Corona, C.R, Robers, M.B, Johnson, G.L, Bingman, C.A, Pagliarini, D.J.Show

Nat.Chem.Biol. 19 230 238 (2023)

PMID: 36302899 DOI: 10.1038/s41589-022-01168-3

Abstact

Small-molecule tools have enabled mechanistic investigations and therapeutic targeting of the protein kinase-like (PKL) superfamily. However, such tools are still lacking for many PKL members, including the highly conserved and disease-related UbiB family. Here, we sought to develop and characterize an inhibitor for the archetypal UbiB member COQ8, whose function is essential for coenzyme Q (CoQ) biosynthesis. Guided by crystallography, activity assays and cellular CoQ measurements, we repurposed the 4-anilinoquinoline scaffold to selectively inhibit human COQ8A in cells. Our chemical tool promises to lend mechanistic insights into the activities of these widespread and understudied proteins and to offer potential therapeutic strategies for human diseases connected to their dysfunction.

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Primary Citation of related structures