SMTL ID : 6gip.1

Crystal structure of the ACVR1 (ALK2) kinase in complex with a Quinazolinone based ALK2 inhibitor with a 2, 5-dimethyl core.

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.17 Å

Oligo State

monomer

Ligands

1 x EUN: 2,5-dimethyl-6-quinolin-4-yl-3~{H}-quinazolin-4-one(Non-covalent)

EUN.1: 18 residues within 4Å: Chain A: V.16, V.24, A.35, V.36, K.37, L.65, L.83, T.85, H.86, Y.87, H.88, E.89, G.91, N.143, L.145, A.155, D.156 Ligands: EDO.7 13 PLIP interactions: 13 interactions with chain A Hydrophobic interactions: A:V.24, A:A.35, A:K.37, A:L.65, A:L.83, A:L.83, A:T.85, A:L.145, A:L.145, A:A.155 Hydrogen bonds: A:H.88, A:H.88 Water bridges: A:D.156

4 x SO4: SULFATE ION(Non-functional Binders)

SO4.2: 5 residues within 4Å: Chain A: K.142, R.182, N.239, D.240, P.241 5 PLIP interactions: 5 interactions with chain A Hydrogen bonds: A:D.240 Water bridges: A:D.240, A:D.240 Salt bridges: A:K.142, A:R.182 SO4.3: 2 residues within 4Å: Chain A: S.40, S.41 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:S.41, A:R.42 SO4.4: 5 residues within 4Å: Chain A: H.86, Y.87, H.88, K.147, K.148 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:K.148 Salt bridges: A:H.86, A:H.88, A:K.148 SO4.5: 3 residues within 4Å: Chain A: K.181, S.242, F.243 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:F.243 Water bridges: A:S.242, A:E.244 Salt bridges: A:K.181

2 x EDO: 1,2-ETHANEDIOL(Non-functional Binders)

EDO.6: 3 residues within 4Å: Chain A: D.103, T.104, V.221 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:T.104 EDO.7: 5 residues within 4Å: Chain A: Y.21, V.24, K.37, N.143 Ligands: EUN.1 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:K.37 Water bridges: A:K.37

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Hudson, L. et al., Novel Quinazolinone Inhibitors of ALK2 Flip between Alternate Binding Modes: Structure-Activity Relationship, Structural Characterization, Kinase Profiling, and Cellular Proof of Concept. J. Med. Chem. (2018)

Release Date

2018-05-23

Peptides

Activin receptor type-1: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

Activin receptor type-1

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