SMTL ID : 7ak7.1

Structure of Salmonella TacT2 toxin bound to TacA2 antitoxin

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.14 Å

Oligo State

hetero-2-4-mer

Ligands

2 x ACO: ACETYL COENZYME *A(Non-covalent)

ACO.1: 25 residues within 4Å: Chain A: C.22, V.24, I.27, G.90, R.91, L.92, A.93, V.94, H.99, G.100, Q.101, G.102, V.103, A.104, R.105, H.130, A.131, L.132, E.135, A.136, E.138, F.139, F.140, R.142 Chain C: K.87 24 PLIP interactions: 23 interactions with chain A, 1 interactions with chain C Hydrophobic interactions: A:I.27, A:L.92, A:A.104, A:L.132, A:A.136, A:F.140 Hydrogen bonds: A:V.94, A:G.100, A:Q.101, A:G.102, A:G.102, A:V.103, A:A.104, A:R.105, A:E.135, A:E.135 Water bridges: A:L.98, A:R.105, A:R.105, A:H.130 Salt bridges: A:R.105, A:R.142, C:K.87 pi-Stacking: A:F.139 ACO.2: 26 residues within 4Å: Chain B: C.22, V.24, I.27, G.90, R.91, L.92, A.93, V.94, H.99, G.100, Q.101, G.102, V.103, A.104, R.105, H.130, A.131, L.132, E.135, A.136, E.138, F.139, F.140, R.142, V.143 Chain D: K.87 26 PLIP interactions: 25 interactions with chain B, 1 interactions with chain D Hydrophobic interactions: B:V.24, B:I.27, B:L.92, B:A.104, B:L.132, B:A.136, B:F.140 Hydrogen bonds: B:L.92, B:V.94, B:G.100, B:Q.101, B:G.102, B:V.103, B:A.104, B:R.105 Water bridges: B:L.98, B:H.99, B:R.105, B:R.105, B:R.105, B:H.130 Salt bridges: B:H.99, B:R.105, B:R.142, D:K.87 pi-Stacking: B:F.139

1 x CL: CHLORIDE ION(Non-functional Binders)

CL.3: 2 residues within 4Å: Chain C: R.25, R.39 Ligand excluded by PLIP

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Grabe, G.J. et al., Auxiliary interfaces support the evolution of specific toxin-antitoxin pairing. Nat.Chem.Biol. (2021)

Release Date

2021-08-18

Peptides

Acetyltransferase: AB
CopG family transcriptional regulator: CDEF

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

C
C

D
D

E
E

F
F

Acetyltransferase

CopG family transcriptional regulator