7OSP image
Deposition Date 2021-06-09
Release Date 2021-12-08
Last Version Date 2024-01-31
Entry Detail
PDB ID:
7OSP
Keywords:
TRANSFERASE
Title:
PARP15 catalytic domain in complex with OUL113
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
Host Organism:
Escherichia coli
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.44 Å
R-Value Free:
0.19
R-Value Work:
0.16
R-Value Observed:
0.16
Space Group:
P 21 21 21
7OSP validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Protein mono-ADP-ribosyltransferase PARP15
Gene (Uniprot):PARP15
Chain IDs:A, B
Chain Length:221
Number of Molecules:2
Biological Source:Homo sapiens
UniProt ID:Q460N3 Pfam ID:PF00644 EC:2.4.2.30
Ligand Molecules
0Q6
DMS
MPD
Primary Citation
Analogs of TIQ-A as inhibitors of human mono-ADP-ribosylating PARPs.
Bioorg.Med.Chem. 52 116511 116511 (2021)
PMID: 34801828 DOI: 10.1016/j.bmc.2021.116511

Abstact

The scaffold of TIQ-A, a previously known inhibitor of human poly-ADP-ribosyltransferase PARP1, was utilized to develop inhibitors against human mono-ADP-ribosyltransferases through structure-guided design and activity profiling. By supplementing the TIQ-A scaffold with small structural changes, based on a PARP10 inhibitor OUL35, selectivity changed from poly-ADP-ribosyltransferases towards mono-ADP-ribosyltransferases. Binding modes of analogs were experimentally verified by determining complex crystal structures with mono-ADP-ribosyltransferase PARP15 and with poly-ADP-ribosyltransferase TNKS2. The best analogs of the study achieved 10-20-fold selectivity towards mono-ADP-ribosyltransferases PARP10 and PARP15 while maintaining micromolar potencies. The work demonstrates a route to differentiate compound selectivity between mono- and poly-ribosyltransferases of the human ARTD family.

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Protein

Chemical

Disease

Primary Citation of related structures
7OQQ