SMTL ID : 7uxw.1

Structure of ATP and GTP bind to Cyclic GMP AMP synthase (cGAS) through Mg coordination

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.57 Å

Oligo State

homo-dimer

Ligands

2 x ATP: ADENOSINE-5'-TRIPHOSPHATE(Non-covalent)

ATP.1: 14 residues within 4Å: Chain A: G.55, S.56, K.62, Q.68, N.70, R.221, S.225, E.228, K.259, S.277, Y.278, K.281 Ligands: GTP.2, MG.3 15 PLIP interactions: 15 interactions with chain A Hydrogen bonds: A:S.56, A:S.56, A:S.56, A:Q.68, A:Q.68, A:N.70, A:S.225, A:S.277, A:K.281, A:K.281 Water bridges: A:Y.57 Salt bridges: A:K.259, A:K.259 pi-Stacking: A:Y.278, A:Y.278 ATP.5: 14 residues within 4Å: Chain B: G.55, S.56, K.62, Q.68, N.70, R.221, S.225, E.228, K.259, S.277, Y.278, K.281 Ligands: GTP.6, MG.7 14 PLIP interactions: 14 interactions with chain B Hydrogen bonds: B:S.56, B:S.56, B:Q.68, B:R.221, B:S.225, B:S.277, B:K.281, B:K.281 Water bridges: B:Y.57, B:Y.57 Salt bridges: B:K.259, B:K.259 pi-Stacking: B:Y.278, B:Y.278

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

GTP.2: 16 residues within 4Å: Chain A: T.54, Q.68, N.70, M.72, K.145, G.147, S.148, P.149, A.150, D.164, I.166, K.207, R.221, S.223, S.225 Ligands: ATP.1 12 PLIP interactions: 12 interactions with chain A Hydrogen bonds: A:T.54, A:Q.68, A:D.164, A:R.221, A:S.223, A:S.223, A:S.225, A:S.225 Salt bridges: A:K.145, A:K.145, A:K.207, A:R.221 GTP.6: 15 residues within 4Å: Chain B: T.54, Q.68, N.70, M.72, G.147, S.148, P.149, A.150, D.164, I.166, K.207, R.221, S.223, S.225 Ligands: ATP.5 12 PLIP interactions: 12 interactions with chain B Hydrogen bonds: B:T.54, B:Q.68, B:N.70, B:D.164, B:R.221, B:S.223, B:S.223, B:S.225, B:S.225 Salt bridges: B:K.207, B:K.207, B:R.221

2 x MG: MAGNESIUM ION(Non-covalent)

MG.3: 4 residues within 4Å: Chain A: S.56, Q.68, N.70 Ligands: ATP.1 No protein-ligand interaction detected (PLIP) MG.7: 4 residues within 4Å: Chain B: S.56, Q.68, N.70 Ligands: ATP.5 No protein-ligand interaction detected (PLIP)

2 x ZN: ZINC ION(Non-covalent)

ZN.4: 4 residues within 4Å: Chain A: H.235, C.241, C.242, C.249 4 PLIP interactions: 4 interactions with chain A Metal complexes: A:H.235, A:C.241, A:C.242, A:C.249 ZN.8: 4 residues within 4Å: Chain B: H.235, C.241, C.242, C.249 4 PLIP interactions: 4 interactions with chain B Metal complexes: B:H.235, B:C.241, B:C.242, B:C.249

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Wu, S. et al., The structural basis for 2'-5'/3'-5'-cGAMP synthesis by cGAS. Nat Commun (2024)

Release Date

2023-05-10

Peptides

Cyclic GMP-AMP synthase: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
C

Cyclic GMP-AMP synthase

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