SMTL ID : 3ket.1

Crystal structure of a Rex-family transcriptional regulatory protein from Streptococcus agalactiae bound to a palindromic operator

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.40 Å

Oligo State

homo-dimer

Ligands

2 x NAD: NICOTINAMIDE-ADENINE-DINUCLEOTIDE(Non-covalent)

NAD.1: 23 residues within 4Å: Chain A: V.90, G.91, C.92, G.93, N.94, I.95, D.117, L.118, I.137, T.155, V.156, P.157, S.158, V.164, F.179, S.180, P.181, L.197, T.198 Chain D: A.98, L.99, Y.102 Ligands: MG.4 16 PLIP interactions: 12 interactions with chain A, 4 interactions with chain D Hydrophobic interactions: A:L.197, D:Y.102 Hydrogen bonds: A:C.92, A:N.94, A:I.95, A:L.118, A:V.156, A:S.158, A:S.158, D:A.98, D:Y.102 Water bridges: A:G.93, A:G.96, A:S.158, A:E.163 pi-Stacking: D:Y.102 NAD.3: 23 residues within 4Å: Chain A: A.98, L.99, Y.102 Chain D: V.90, G.91, C.92, G.93, N.94, I.95, D.117, L.118, I.137, T.155, V.156, P.157, S.158, V.164, F.179, S.180, P.181, L.197, T.198 Ligands: MG.2 16 PLIP interactions: 12 interactions with chain D, 4 interactions with chain A Hydrophobic interactions: D:L.197, A:Y.102 Hydrogen bonds: D:C.92, D:N.94, D:I.95, D:L.118, D:V.156, D:S.158, D:S.158, A:A.98, A:Y.102 Water bridges: D:G.93, D:G.96, D:S.158, D:E.163 pi-Stacking: A:Y.102

2 x MG: MAGNESIUM ION(Non-covalent)

MG.2: 5 residues within 4Å: Chain A: R.20, Y.102 Chain D: P.181, T.198 Ligands: NAD.3 No protein-ligand interaction detected (PLIP) MG.4: 5 residues within 4Å: Chain A: P.181, T.198 Chain D: R.20, Y.102 Ligands: NAD.1 No protein-ligand interaction detected (PLIP)

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Franza, T. et al., NAD+ pool depletion as a signal for the Rex regulon involved in Streptococcus agalactiae virulence. Plos Pathog. (2021)

Release Date

2010-11-10

Peptides

Redox-sensing transcriptional repressor rex: AD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

D
A

Redox-sensing transcriptional repressor rex

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