SMTL ID : 2j4e.5 (5 other biounits)

THE ITP COMPLEX OF HUMAN INOSINE TRIPHOSPHATASE

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.80 Å

Oligo State

homo-dimer

Ligands

1 x POP: PYROPHOSPHATE 2-(Non-covalent)

POP.1: 10 residues within 4Å: Chain A: T.16, G.17, N.18, K.21, E.46, K.58, E.73, K.91 Ligands: IMP.2, MG.3 7 PLIP interactions: 7 interactions with chain A Hydrogen bonds: A:G.17, A:N.18, A:N.18 Salt bridges: A:K.21, A:K.21, A:K.58, A:K.91

1 x IMP: INOSINIC ACID(Non-covalent)

IMP.2: 18 residues within 4Å: Chain A: N.18, K.21, E.24, E.46, E.73, D.74, T.75, I.90, K.91, L.94, F.151, G.152, W.153, D.154, K.174, H.179, R.180 Ligands: POP.1 14 PLIP interactions: 14 interactions with chain A Hydrogen bonds: A:N.18, A:E.73, A:T.75, A:T.75, A:W.153, A:D.154, A:K.174, A:R.180 Water bridges: A:K.91 Salt bridges: A:K.21 pi-Stacking: A:F.151, A:F.151, A:W.153, A:W.153

2 x MG: MAGNESIUM ION(Non-covalent)

MG.3: 4 residues within 4Å: Chain A: E.46, K.58, K.91 Ligands: POP.1 1 PLIP interactions: 1 interactions with chain A Metal complexes: A:E.46 MG.5: 3 residues within 4Å: Chain B: E.46, K.91 Ligands: ITT.4 1 PLIP interactions: 1 interactions with chain B Metal complexes: B:E.46

1 x ITT: INOSINE 5'-TRIPHOSPHATE(Non-covalent)

ITT.4: 19 residues within 4Å: Chain B: T.16, G.17, N.18, K.21, E.46, K.58, E.73, D.74, T.75, I.90, K.91, F.151, G.152, W.153, D.154, K.174, H.179, R.180 Ligands: MG.5 20 PLIP interactions: 20 interactions with chain B Hydrogen bonds: B:G.17, B:N.18, B:N.18, B:E.73, B:D.74, B:T.75, B:T.75, B:W.153, B:K.174, B:R.180 Salt bridges: B:K.21, B:K.21, B:K.21, B:K.58, B:K.58, B:K.58, B:K.91 pi-Stacking: B:F.151, B:F.151, B:W.153

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Stenmark, P. et al., Crystal Structure of Human Inosine Triphosphatase: Substrate Binding and Implication of the Inosine Triphosphatase Deficiency Mutation P32T. J.Biol.Chem. (2007)

Release Date

2006-09-20

Peptides

INOSINE TRIPHOSPHATE PYROPHOSPHATASE: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
D

B
E

INOSINE TRIPHOSPHATE PYROPHOSPHATASE

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