SMTL ID : 1h79.1

STRUCTURAL BASIS FOR ALLOSTERIC SUBSTRATE SPECIFICITY REGULATION IN CLASS III RIBONUCLEOTIDE REDUCTASES: NRDD IN COMPLEX WITH DTTP

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.90 Å

Oligo State

homo-dimer

Ligands

4 x TTP: THYMIDINE-5'-TRIPHOSPHATE(Non-covalent)

TTP.1: 14 residues within 4Å: Chain A: I.99, E.100, T.101, K.103, V.107, A.110, I.111, Q.114, K.146 Chain B: D.173, Q.176, A.177, Y.180 Ligands: MG.2 11 PLIP interactions: 7 interactions with chain A, 4 interactions with chain B Hydrophobic interactions: A:V.107, B:Y.180 Hydrogen bonds: A:E.100, A:K.103, A:S.104, A:Q.114, A:Q.114, B:Q.176, B:Q.176 Salt bridges: A:K.146 pi-Stacking: B:Y.180 TTP.4: 13 residues within 4Å: Chain A: H.64, H.66, D.67, D.69, Q.191, T.443, P.444, A.445, E.446, N.447, L.448, R.451, Y.581 14 PLIP interactions: 14 interactions with chain A Hydrophobic interactions: A:N.447, A:R.451 Hydrogen bonds: A:D.67, A:Q.191, A:A.445, A:E.446, A:N.447, A:N.447, A:L.448, A:Y.581 Salt bridges: A:H.64, A:H.66, A:H.66, A:H.66 TTP.5: 14 residues within 4Å: Chain A: D.173, Q.176, A.177, Y.180 Chain B: I.99, E.100, T.101, K.103, V.107, A.110, I.111, Q.114, K.146 Ligands: MG.6 12 PLIP interactions: 5 interactions with chain A, 7 interactions with chain B Hydrophobic interactions: A:Y.180, B:V.107 Hydrogen bonds: A:D.173, A:Q.176, A:Q.176, B:E.100, B:K.103, B:S.104, B:Q.114, B:Q.114 pi-Stacking: A:Y.180 Salt bridges: B:K.146 TTP.8: 13 residues within 4Å: Chain B: H.64, H.66, D.67, D.69, Q.191, T.443, P.444, A.445, E.446, N.447, L.448, R.451, Y.581 13 PLIP interactions: 13 interactions with chain B Hydrophobic interactions: B:N.447, B:R.451 Hydrogen bonds: B:D.67, B:Q.191, B:A.445, B:E.446, B:N.447, B:N.447, B:L.448 Salt bridges: B:H.64, B:H.66, B:H.66, B:H.66

2 x MG: MAGNESIUM ION(Non-functional Binders)

MG.2: 1 residues within 4Å: Ligands: TTP.1 No protein-ligand interaction detected (PLIP) MG.6: 1 residues within 4Å: Ligands: TTP.5 No protein-ligand interaction detected (PLIP)

2 x FE2: FE (II) ION(Non-covalent)

FE2.3: 5 residues within 4Å: Chain A: C.543, C.546, C.561, I.563, C.564 4 PLIP interactions: 4 interactions with chain A Metal complexes: A:C.543, A:C.546, A:C.561, A:C.564 FE2.7: 5 residues within 4Å: Chain B: C.543, C.546, C.561, I.563, C.564 4 PLIP interactions: 4 interactions with chain B Metal complexes: B:C.543, B:C.546, B:C.561, B:C.564

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Larsson, K.-M. et al., Structural Basis for Allosteric Substrate Specificty Regulation in Anaerobic Ribonucleotide Reductase. Structure (2001)

Release Date

2002-03-28

Peptides

ANAEROBIC RIBONUCLEOTIDE-TRIPHOSPHATE REDUCTASE LARGE CHAIN: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
A

ANAEROBIC RIBONUCLEOTIDE-TRIPHOSPHATE REDUCTASE LARGE CHAIN

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