ISDA

Deposition Date 2020-05-12

Release Date 2021-03-03

Last Version Date 2023-11-29

Entry Detail

PDB ID:

7C3G

Keywords:

SIGNALING PROTEIN

Title:

Crystal structure of human ALK2 kinase domain with R206H mutation in complex with a bicyclic pyrazole inhibitor RK-73134

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Spodoptera frugiperda

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.80 Å

R-Value Free:

0.22

R-Value Work:

0.18

Space Group:

P 21 21 2

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Activin receptor type-1
Gene (Uniprot):ACVR1
Mutagens:R206H
Chain IDs:A, B
Chain Length:301
Number of Molecules:2
Biological Source:Homo sapiens

UniProt ID:Q04771 Pfam ID:PF00069 EC:2.7.10.2

Ligand Molecules

EDO

FH0

SO4

Primary Citation

Novel bicyclic pyrazoles as potent ALK2 (R206H) inhibitors for the treatment of fibrodysplasia ossificans progressiva.

Yamamoto, H, Sakai, N, Ohte, S, Sato, T, Sekimata, K, Matsumoto, T, Nakamura, K, Watanabe, H, Mishima-Tsumagari, C, Tanaka, A, Hashizume, Y, Honma, T, Katagiri, T, Miyazono, K, Tomoda, H, Shirouzu, M, Koyama, H.Show

Bioorg.Med.Chem.Lett. 38 127858 127858 (2021)

PMID: 33609658 DOI: 10.1016/j.bmcl.2021.127858

Abstact

Mutant activin receptor-like kinase-2 (ALK2) is associated with the pathogenesis of fibrodysplasia ossificans progressiva, making it an attractive target for therapeutic intervention. We synthesized a new series of bicyclic pyrazoles and evaluated their mutant ALK2 enzyme inhibitory activities, leading to the identification of 8 as the most potent inhibitor. This compound showed moderate microsomal metabolic stability and human ether-a-go-go related gene (hERG) safety. In C2C12 cells carrying mutant ALK2 (R206H), 8 efficiently inhibited the bone morphogenetic protein (BMP)-induced alkaline phosphatase activity.

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Primary Citation of related structures