SMTL ID : 8sj1.1

Structure of ternary complex of cGAS with dsDNA and bound 3'-dATP

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.81 Å

Oligo State

homo-dimer

Ligands

2 x 3AT: 3'-DEOXYADENOSINE-5'-TRIPHOSPHATE(Non-covalent)

3AT.1: 12 residues within 4Å: Chain A: G.55, S.56, E.68, D.70, R.221, S.225, E.228, K.259, S.277, Y.278, K.281 Ligands: MG.3 11 PLIP interactions: 11 interactions with chain A Hydrogen bonds: A:S.56, A:S.56, A:E.68, A:S.225, A:S.277, A:K.281, A:K.281 Salt bridges: A:K.62, A:K.259 pi-Stacking: A:Y.278 pi-Cation interactions: A:R.221 3AT.4: 11 residues within 4Å: Chain B: G.55, S.56, E.68, D.70, R.221, S.225, E.228, K.259, S.277, Y.278 Ligands: MG.6 8 PLIP interactions: 8 interactions with chain B Hydrogen bonds: B:S.56, B:S.56, B:E.228, B:S.277 Salt bridges: B:K.259 pi-Stacking: B:Y.278, B:Y.278 pi-Cation interactions: B:R.221

2 x ZN: ZINC ION(Non-covalent)

ZN.2: 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.5: 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

2 x MG: MAGNESIUM ION(Non-covalent)

MG.3: 4 residues within 4Å: Chain A: S.56, E.68, D.70 Ligands: 3AT.1 2 PLIP interactions: 2 interactions with chain A Metal complexes: A:E.68, A:D.70 MG.6: 4 residues within 4Å: Chain B: S.56, E.68, D.70 Ligands: 3AT.4 2 PLIP interactions: 2 interactions with chain B Metal complexes: B:E.68, B:D.70

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

2024-04-24

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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