SMTL ID : 4dym.1

Crystal structure of the ACVR1 kinase domain in complex with the imidazo[1,2-b]pyridazine inhibitor K00135

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.42 Å

Oligo State

homo-dimer

Ligands

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

SO4.1: 4 residues within 4Å: Chain A: R.182, N.239, D.240, P.241 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:D.240 Salt bridges: A:R.182 SO4.2: 3 residues within 4Å: Chain A: H.88, K.147, K.148 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:K.148 Water bridges: A:E.89 Salt bridges: A:H.88 SO4.8: 4 residues within 4Å: Chain B: R.182, N.239, D.240, P.241 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:D.240 Salt bridges: B:R.182 SO4.9: 3 residues within 4Å: Chain B: H.88, K.147, K.148 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:K.148 Water bridges: B:E.89 Salt bridges: B:H.88

2 x IYZ: 1-(3-{6-[(CYCLOPROPYLMETHYL)AMINO]IMIDAZO[1,2-B]PYRIDAZIN-3-YL}PHENYL)ETHANONE(Non-covalent)

IYZ.3: 16 residues within 4Å: Chain A: Y.21, V.24, A.35, K.37, L.65, T.85, H.86, Y.87, H.88, G.91, S.92, K.142, L.145, A.155, D.156 Ligands: GOL.5 8 PLIP interactions: 8 interactions with chain A Hydrophobic interactions: A:A.35, A:L.65, A:T.85, A:Y.87, A:L.145, A:L.145 Hydrogen bonds: A:H.88 Water bridges: A:K.37 IYZ.10: 16 residues within 4Å: Chain B: Y.21, V.24, A.35, K.37, L.65, T.85, H.86, Y.87, H.88, G.91, S.92, K.142, L.145, A.155, D.156 Ligands: GOL.12 8 PLIP interactions: 8 interactions with chain B Hydrophobic interactions: B:A.35, B:L.65, B:T.85, B:Y.87, B:L.145, B:L.145 Hydrogen bonds: B:H.88 Water bridges: B:K.37

8 x GOL: GLYCEROL(Non-functional Binders)

GOL.4: 3 residues within 4Å: Chain A: R.218, E.227, Y.234 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:R.218, A:R.218 Water bridges: A:Y.234, A:Y.234 GOL.5: 8 residues within 4Å: Chain A: Y.21, K.37, D.138, K.140, N.143, D.156 Ligands: IYZ.3, GOL.7 6 PLIP interactions: 6 interactions with chain A Hydrogen bonds: A:K.37, A:K.140, A:K.140, A:N.143 Water bridges: A:K.37, A:K.37 GOL.6: 2 residues within 4Å: Chain A: D.235, V.236 No protein-ligand interaction detected (PLIP) GOL.7: 3 residues within 4Å: Chain A: R.20, Y.21 Ligands: GOL.5 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:R.20, A:Y.21 Water bridges: A:K.140 GOL.11: 3 residues within 4Å: Chain B: R.218, E.227, Y.234 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:R.218, B:R.218 Water bridges: B:Y.234 GOL.12: 8 residues within 4Å: Chain B: Y.21, K.37, D.138, K.140, N.143, D.156 Ligands: IYZ.10, GOL.14 7 PLIP interactions: 7 interactions with chain B Hydrogen bonds: B:K.37, B:K.140, B:K.140, B:N.143, B:D.156 Water bridges: B:K.37, B:K.37 GOL.13: 2 residues within 4Å: Chain B: D.235, V.236 No protein-ligand interaction detected (PLIP) GOL.14: 3 residues within 4Å: Chain B: R.20, Y.21 Ligands: GOL.12 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:R.20, B:Y.21 Water bridges: B:K.140

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Chaikuad, A. et al., Crystal structure of the ACVR1 kinase domain in complex with the imidazo[1,2-b]pyridazine inhibitor K00135. To be Published

Release Date

2012-03-21

Peptides

Activin receptor type-1: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
A

Activin receptor type-1

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