SMTL ID : 6s0m.1

Structural and dynamic studies provide insights into specificity and allosteric regulation of Ribonuclease AS, a key enzyme in mycobacterial virulence

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.00 Å

Oligo State

homo-dimer

Ligands

1 x G: RNA (5'-R(P*G)-3')(Non-covalent)

G.1: 12 residues within 4Å: Chain A: T.107 Chain B: D.6, T.7, E.8, F.9, W.46, V.47, V.51, H.140, D.145 Ligands: MG.3, MG.4 15 PLIP interactions: 13 interactions with chain B, 2 interactions with chain A Hydrogen bonds: B:E.8, B:F.9, B:D.145, A:T.107 Water bridges: B:T.7, B:F.9, B:W.46, B:W.46, B:H.140, B:H.140, A:T.107 Salt bridges: B:H.140 pi-Stacking: B:W.46, B:W.46, B:W.46

4 x MG: MAGNESIUM ION(Non-covalent)

MG.2: 2 residues within 4Å: Chain A: D.6, D.95 5 PLIP interactions: 1 interactions with chain A, 4 Ligand-Water interactions Metal complexes: A:D.6, H2O.1, H2O.3, H2O.5, H2O.7 MG.3: 4 residues within 4Å: Chain B: D.6, D.95 Ligands: G.1, MG.4 4 PLIP interactions: 1 interactions with chain B, 3 Ligand-Water interactions Metal complexes: B:D.6, H2O.7, H2O.8, H2O.11 MG.4: 6 residues within 4Å: Chain B: D.6, T.7, E.8, D.145 Ligands: G.1, MG.3 3 PLIP interactions: 3 interactions with chain B Metal complexes: B:D.6, B:E.8, B:D.145 MG.5: 4 residues within 4Å: Chain B: E.37, S.65, R.66, Q.67 3 PLIP interactions: 1 interactions with chain B, 2 Ligand-Water interactions Metal complexes: B:E.37, H2O.13, H2O.13

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Calvanese, L. et al., Structural and dynamic studies provide insights into specificity and allosteric regulation of ribonuclease as, a key enzyme in mycobacterial virulence. J.Biomol.Struct.Dyn. (2020)

Release Date

2019-08-28

Peptides

3'-5' exoribonuclease: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

3'-5' exoribonuclease