SMTL ID : 3keo.1

Crystal Structure of a Rex-family transcriptional regulatory protein from Streptococcus agalactiae complexed with NAD+

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.50 Å

Oligo State

homo-dimer

Ligands

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

NAD.1: 22 residues within 4Å: Chain A: V.90, G.91, C.92, G.93, N.94, I.95, D.117, L.118, N.121, I.137, T.155, V.156, P.157, S.158, V.164, F.179, S.180, P.181, L.197 Chain B: A.98, L.99, Y.102 18 PLIP interactions: 15 interactions with chain A, 3 interactions with chain B Hydrophobic interactions: A:L.197, B:Y.102 Hydrogen bonds: A:C.92, A:C.92, A:N.94, A:N.94, A:I.95, A:N.121, A:V.156, A:S.158, B:A.98 Water bridges: A:G.93, A:N.94, A:G.96, A:D.117, A:S.158, A:S.158 pi-Stacking: B:Y.102 NAD.7: 23 residues within 4Å: Chain A: A.98, L.99, Y.102 Chain B: V.90, G.91, C.92, G.93, N.94, I.95, D.117, L.118, N.121, I.137, T.155, V.156, P.157, S.158, V.164, F.179, S.180, P.181, L.197 Ligands: MG.2 18 PLIP interactions: 15 interactions with chain B, 3 interactions with chain A Hydrophobic interactions: B:L.197, A:Y.102 Hydrogen bonds: B:C.92, B:C.92, B:N.94, B:I.95, B:L.118, B:N.121, B:V.156, A:A.98 Water bridges: B:G.93, B:N.94, B:G.96, B:S.158, B:S.158, B:S.158, B:E.160 pi-Stacking: A:Y.102

7 x MG: MAGNESIUM ION(Non-covalent)

MG.2: 4 residues within 4Å: Chain A: H.101, Y.102, R.103 Ligands: NAD.7 No protein-ligand interaction detected (PLIP) MG.3: 2 residues within 4Å: Chain A: R.14 Chain B: R.14 No protein-ligand interaction detected (PLIP) MG.4: 2 residues within 4Å: Chain A: N.209, R.212 No protein-ligand interaction detected (PLIP) MG.5: 3 residues within 4Å: Chain A: K.23, H.105, D.106 No protein-ligand interaction detected (PLIP) MG.8: 4 residues within 4Å: Chain A: Q.202 Chain B: D.81, H.105, M.110 1 PLIP interactions: 1 interactions with chain B Metal complexes: B:D.81 MG.9: 3 residues within 4Å: Chain A: L.42, G.43 Chain B: K.13 No protein-ligand interaction detected (PLIP) MG.10: 3 residues within 4Å: Chain B: L.118, D.119, S.120 No protein-ligand interaction detected (PLIP)

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

CL.6: 1 residues within 4Å: Chain A: R.14 Ligand excluded by 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: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Redox-sensing transcriptional repressor rex

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