SMTL ID : 4bdg.1

Fragment-based screening identifies a new area for inhibitor binding to checkpoint kinase 2 (CHK2)

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.84 Å

Oligo State

homo-dimer

Ligands

2 x P3J: 3-(PYRIDIN-3-YL)-1H-PYRAZOL-5-AMINE(Non-covalent)

P3J.1: 10 residues within 4Å: Chain A: L.24, V.32, A.45, L.99, E.100, L.101, M.102, G.105, E.106, L.152 7 PLIP interactions: 7 interactions with chain A Hydrophobic interactions: A:L.24, A:V.32, A:L.152 Hydrogen bonds: A:E.100, A:E.100, A:M.102, A:E.106 P3J.5: 10 residues within 4Å: Chain B: L.24, V.32, A.45, L.99, E.100, L.101, M.102, G.105, E.106, L.152 6 PLIP interactions: 6 interactions with chain B Hydrophobic interactions: B:L.24, B:V.32, B:L.152 Hydrogen bonds: B:E.100, B:E.100, B:M.102

2 x NO3: NITRATE ION(Non-functional Binders)

NO3.2: 5 residues within 4Å: Chain A: L.173, G.201, Y.202, N.203, R.204 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:N.203, A:N.203, A:R.204, A:R.204 NO3.6: 5 residues within 4Å: Chain B: L.173, G.201, Y.202, N.203, R.204 4 PLIP interactions: 4 interactions with chain B Hydrogen bonds: B:N.203, B:N.203, B:R.204, B:R.204

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

EDO.3: 3 residues within 4Å: Chain A: E.17, N.88, F.89 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:F.89 Water bridges: A:F.89 EDO.7: 3 residues within 4Å: Chain B: E.17, N.88, F.89 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:F.89 Water bridges: B:F.89

2 x CL: CHLORIDE ION(Non-functional Binders)

CL.4: 2 residues within 4Å: Chain A: V.9, Y.10 Ligand excluded by PLIP CL.8: 2 residues within 4Å: Chain B: V.9, Y.10 Ligand excluded by PLIP

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Silva-Santisteban, M.C. et al., Fragment-Based Screening Maps Inhibitor Interactions in the ATP-Binding Site of Checkpoint Kinase 2. Plos One (2013)

Release Date

2013-06-26

Peptides

SERINE/THREONINE-PROTEIN KINASE CHK2: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
A

SERINE/THREONINE-PROTEIN KINASE CHK2

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