SMTL ID : 2c2z.1

Crystal structure of caspase-8 in complex with aza-peptide Michael acceptor inhibitor

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.95 Å

Oligo State

hetero-oligomer

Ligands

2 x PHQ- LEU- GLU- THR- MX5: AZA-PEPTIDE INHIBITOR (5S, 8R, 11S)-8-(2-CARBOXYETHYL) -14-[4-(3,4-DIHYDROQUINOLIN-1(2H)-YL)-4-OXOBUTANOYL] -11-[(1R)-1-HYDROXYETHYL]-5-(2-METHYLPROPYL)-3,6,9,12-TETRAOXO -1-PHENYL-2-OXA-4,7,10,13,14-PENTAAZAHEXADECAN-16-OIC ACID(Non-covalent)

PHQ-LEU-GLU-THR-MX5.1: 22 residues within 4Å: Chain A: L.39, S.41, I.42, D.44, R.45, S.101, H.102, G.103, Y.109, Q.143, A.144, C.145 Chain B: V.37, S.38, Y.39, R.40, N.41, P.42, A.43, T.46, W.47, D.82 10 PLIP interactions: 8 interactions with chain A, 2 interactions with chain B Hydrophobic interactions: A:L.39, A:Y.109, B:P.42, B:A.43 Hydrogen bonds: A:H.102, A:G.103, A:Q.143, A:C.145, B:S.38 Salt bridges: A:R.45, A:H.102, B:R.40 PHQ-LEU-GLU-THR-MX5.3: 22 residues within 4Å: Chain C: L.39, S.41, I.42, D.44, R.45, S.101, H.102, G.103, Y.109, Q.143, A.144, C.145 Chain D: V.37, S.38, Y.39, R.40, N.41, P.42, A.43, T.46, W.47, D.82 9 PLIP interactions: 7 interactions with chain C, 2 interactions with chain D Hydrophobic interactions: C:L.39, C:Y.109, D:P.42, D:A.43 Hydrogen bonds: C:G.103, C:Q.143, C:C.145, D:S.38 Salt bridges: C:R.45, C:H.102, D:R.40

2 x DTD: DITHIANE DIOL(Non-covalent)

DTD.2: 7 residues within 4Å: Chain A: Y.119, T.122 Chain B: E.23, F.26, L.28, T.96 Chain D: Q.92 4 PLIP interactions: 2 interactions with chain A, 2 interactions with chain B Water bridges: A:T.122, A:T.122 Hydrogen bonds: B:E.23, B:E.23 DTD.4: 7 residues within 4Å: Chain B: Q.92 Chain C: Y.119, T.122 Chain D: E.23, F.26, L.28, T.96 3 PLIP interactions: 2 interactions with chain C, 1 interactions with chain D Hydrogen bonds: C:T.122, D:E.23 Water bridges: C:T.122

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Ekici, O.D. et al., Design, Synthesis, and Evaluation of Aza-Peptide Michael Acceptors as Selective and Potent Inhibitors of Caspases-2, -3, -6, -7, -8, -9, and - 10. J.Med.Chem. (2006)

Release Date

2006-09-20

Peptides

CASPASE-8 P18 SUBUNIT: AC
CASPASE-8 P10 SUBUNIT: BD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

C
A

B
B

D
B

CASPASE-8 P18 SUBUNIT

CASPASE-8 P10 SUBUNIT

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