SMTL ID : 2ad5.2 (2 other biounits)

Mechanisms of feedback regulation and drug resistance of CTP synthetases: structure of the E. coli CTPS/CTP complex at 2.8-Angstrom resolution.

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.80 Å

Oligo State

homo-dimer

Ligands

2 x MG: MAGNESIUM ION(Non-covalent)

MG.1: 5 residues within 4Å: Chain A: G.19, K.40, D.72, E.140 Ligands: ADP.2 2 PLIP interactions: 2 interactions with chain A Metal complexes: A:D.72, A:E.140 MG.4: 5 residues within 4Å: Chain B: G.19, K.40, D.72, E.140 Ligands: ADP.5 2 PLIP interactions: 2 interactions with chain B Metal complexes: B:D.72, B:E.140

2 x ADP: ADENOSINE-5'-DIPHOSPHATE(Non-covalent)

ADP.2: 16 residues within 4Å: Chain A: S.15, L.16, G.17, K.18, G.19, I.20, D.72, E.140, R.211, L.238, K.239, D.240, V.241, I.247, K.306 Ligands: MG.1 17 PLIP interactions: 17 interactions with chain A Hydrogen bonds: A:S.15, A:L.16, A:G.17, A:K.18, A:G.19, A:I.20, A:D.72, A:R.211, A:K.239, A:D.240, A:V.241, A:K.306, A:K.306 Water bridges: A:K.18, A:K.18, A:K.40 Salt bridges: A:K.18 ADP.5: 16 residues within 4Å: Chain B: S.15, L.16, G.17, K.18, G.19, I.20, D.72, E.140, R.211, L.238, K.239, D.240, V.241, I.247, K.306 Ligands: MG.4 17 PLIP interactions: 17 interactions with chain B Hydrogen bonds: B:S.15, B:L.16, B:G.17, B:K.18, B:G.19, B:I.20, B:D.72, B:R.211, B:K.239, B:D.240, B:V.241, B:K.306, B:K.306 Water bridges: B:K.18, B:K.18, B:K.40 Salt bridges: B:K.18

2 x CTP: CYTIDINE-5'-TRIPHOSPHATE(Non-covalent)

CTP.3: 7 residues within 4Å: Chain A: S.14, D.147, I.148, E.149 Chain B: Q.114, V.115, I.116 13 PLIP interactions: 9 interactions with chain A, 4 interactions with chain B Hydrogen bonds: A:S.14, A:D.147, A:I.148, A:E.149, A:E.149, B:Q.114, B:V.115, B:I.116 Water bridges: A:S.14, A:T.144, A:T.144, A:E.149 Hydrophobic interactions: B:I.116 CTP.6: 7 residues within 4Å: Chain A: Q.114, V.115, I.116 Chain B: S.14, D.147, I.148, E.149 13 PLIP interactions: 9 interactions with chain B, 4 interactions with chain A Hydrogen bonds: B:S.14, B:D.147, B:I.148, B:E.149, B:E.149, A:Q.114, A:V.115, A:I.116 Water bridges: B:S.14, B:T.144, B:T.144, B:E.149 Hydrophobic interactions: A:I.116

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Endrizzi, J.A. et al., Mechanisms of Product Feedback Regulation and Drug Resistance in Cytidine Triphosphate Synthetases from the Structure of a CTP-Inhibited Complex(,). Biochemistry (2005)

Release Date

2005-11-01

Peptides

CTP synthase: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
A

CTP synthase

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