SMTL ID : 7v0w.1

Structure of Ternary Complex of cGAS with dsDNA and Bound 5 -pppG(2,5 )pA

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.66 Å

Oligo State

homo-dimer

Ligands

2 x ZN: ZINC ION(Non-covalent)

ZN.1: 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 MN: MANGANESE (II) ION(Non-covalent)

MN.2: 4 residues within 4Å: Chain A: S.56, Q.68, N.70 Ligands: GTP.4 No protein-ligand interaction detected (PLIP) MN.6: 4 residues within 4Å: Chain B: S.56, Q.68, N.70 Ligands: GTP.8 No protein-ligand interaction detected (PLIP)

2 x AMP: ADENOSINE MONOPHOSPHATE(Non-covalent)

AMP.3: 14 residues within 4Å: Chain A: N.70, M.72, S.148, P.149, A.150, D.164, I.166, V.205, K.207, R.221, L.222, S.223, S.225 Ligands: GTP.4 9 PLIP interactions: 9 interactions with chain A Hydrogen bonds: A:N.70, A:N.70, A:D.164, A:D.164, A:K.207, A:R.221, A:S.223, A:S.225 Salt bridges: A:K.207 AMP.7: 13 residues within 4Å: Chain B: N.70, S.148, P.149, A.150, D.164, I.166, V.205, K.207, R.221, L.222, S.223, S.225 Ligands: GTP.8 10 PLIP interactions: 10 interactions with chain B Hydrogen bonds: B:N.70, B:N.70, B:S.148, B:D.164, B:D.164, B:R.221, B:L.222, B:S.225 Water bridges: B:K.207 Salt bridges: B:K.207

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

GTP.4: 13 residues within 4Å: Chain A: G.55, S.56, K.62, Q.68, N.70, K.207, R.221, K.259, C.276, S.277, Y.278 Ligands: MN.2, AMP.3 13 PLIP interactions: 13 interactions with chain A Hydrogen bonds: A:S.56, A:S.56, A:E.59, A:K.207, A:S.277, A:Y.278 Water bridges: A:S.56, A:Y.57, A:K.62, A:K.259 Salt bridges: A:K.259, A:K.259 pi-Stacking: A:Y.278 GTP.8: 14 residues within 4Å: Chain B: G.55, S.56, E.59, K.62, Q.68, N.70, K.207, R.221, K.259, C.276, S.277, Y.278 Ligands: MN.6, AMP.7 13 PLIP interactions: 13 interactions with chain B Hydrogen bonds: B:S.56, B:S.56, B:E.59, B:K.207, B:S.277, B:Y.278 Water bridges: B:S.56, B:Y.57, B:K.259 Salt bridges: B:K.259, B:K.259 pi-Stacking: B:Y.278 pi-Cation interactions: B:K.207

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

2023-05-17

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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