SMTL ID : 1n3s.1 (2 other biounits)

Biosynthesis of pteridins. Reaction mechanism of GTP cyclohydrolase I

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.55 Å

Oligo State

homo-pentamer

Ligands

5 x GTP: GUANOSINE-5'-TRIPHOSPHATE(Non-covalent)

GTP.1: 16 residues within 4Å: Chain A: T.87, V.131, I.132, G.133, L.134, S.135, K.136, R.139 Chain E: H.112, V.150, Q.151, E.152, H.179, C.181, V.182, R.185 16 PLIP interactions: 5 interactions with chain E, 11 interactions with chain A Hydrogen bonds: E:Q.151, A:T.87, A:I.132, A:L.134, A:S.135, A:S.135, A:S.135, A:K.136 Salt bridges: E:H.112, E:E.152, E:R.185, E:R.185, A:K.136, A:K.136, A:K.136, A:R.139 GTP.2: 15 residues within 4Å: Chain A: H.112, V.150, Q.151, E.152, H.179, C.181, R.185 Chain B: T.87, V.131, I.132, G.133, L.134, S.135, K.136, R.139 20 PLIP interactions: 14 interactions with chain B, 6 interactions with chain A Hydrogen bonds: B:T.87, B:I.132, B:I.132, B:L.134, B:S.135, B:S.135, B:S.135, B:K.136, B:K.136, B:K.136, A:Q.151 Salt bridges: B:K.136, B:K.136, B:K.136, B:R.139, A:H.112, A:E.152, A:R.185, A:R.185 Water bridges: A:R.185 GTP.3: 14 residues within 4Å: Chain B: H.112, V.150, Q.151, E.152, H.179, R.185 Chain C: T.87, V.131, I.132, G.133, L.134, S.135, K.136, R.139 21 PLIP interactions: 8 interactions with chain B, 13 interactions with chain C Hydrogen bonds: B:Q.151, C:T.87, C:I.132, C:I.132, C:L.134, C:S.135, C:S.135, C:S.135, C:K.136 Water bridges: B:S.113, B:R.185, B:I.187, C:S.135 Salt bridges: B:E.152, B:R.185, B:R.185, C:K.136, C:K.136, C:K.136, C:R.139 pi-Cation interactions: B:H.112 GTP.4: 15 residues within 4Å: Chain C: H.112, V.150, Q.151, E.152, H.179, C.181, R.185 Chain D: T.87, V.131, I.132, G.133, L.134, S.135, K.136, R.139 24 PLIP interactions: 8 interactions with chain C, 16 interactions with chain D Hydrogen bonds: C:Q.151, D:T.87, D:I.132, D:I.132, D:L.134, D:S.135, D:S.135, D:S.135, D:K.136 Water bridges: C:S.113, C:C.181, C:R.185, D:I.132, D:K.136, D:K.136, D:R.139 Salt bridges: C:E.152, C:R.185, C:R.185, D:K.136, D:K.136, D:K.136, D:R.139 pi-Cation interactions: C:H.112 GTP.5: 15 residues within 4Å: Chain D: H.112, V.150, Q.151, E.152, H.179, C.181, R.185 Chain E: T.87, V.131, I.132, G.133, L.134, S.135, K.136, R.139 19 PLIP interactions: 13 interactions with chain E, 6 interactions with chain D Hydrogen bonds: E:I.132, E:I.132, E:L.134, E:S.135, E:S.135, E:S.135, E:K.136, E:K.136, D:Q.151, D:H.179 Water bridges: E:I.132 Salt bridges: E:K.136, E:K.136, E:K.136, E:R.139, D:H.112, D:E.152, D:R.185, D:R.185

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Rebelo, J. et al., Biosynthesis of Pteridines. Reaction Mechanism of GTP Cyclohydrolase I. J.MOL.BIOL. (2003)

Release Date

2004-03-02

Peptides

GTP cyclohydrolase I: ABCDE

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

C
C

D
D

E
E

GTP cyclohydrolase I

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