SMTL ID : 6how.1

Trypanosoma brucei PTR1 in complex with the triazine inhibitor 2a (F219).

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.92 Å

Oligo State

homo-tetramer

Ligands

4 x NAP: NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE(Non-covalent)

NAP.1: 26 residues within 4Å: Chain A: G.30, R.34, I.35, H.53, Y.54, H.55, N.56, S.57, A.81, D.82, L.83, T.84, N.113, A.114, S.115, T.146, L.179, C.180, D.181, Y.194, K.198, P.224, G.225, V.226, S.227 Ligands: GJQ.2 26 PLIP interactions: 26 interactions with chain A Hydrophobic interactions: A:P.224 Hydrogen bonds: A:R.34, A:I.35, A:H.55, A:H.55, A:N.56, A:S.57, A:D.82, A:D.82, A:L.83, A:T.84, A:N.113, A:S.115, A:S.115, A:S.115, A:K.198, A:S.227, A:S.227 Water bridges: A:G.30, A:A.32, A:G.36, A:N.113, A:S.115 Salt bridges: A:R.34, A:R.34 pi-Stacking: A:H.55 NAP.3: 27 residues within 4Å: Chain B: G.30, R.34, I.35, H.53, Y.54, H.55, N.56, S.57, A.81, D.82, L.83, T.84, N.113, A.114, S.115, T.146, L.179, C.180, D.181, Y.194, K.198, P.224, G.225, V.226, S.227, L.228 Ligands: GJQ.4 24 PLIP interactions: 24 interactions with chain B Hydrophobic interactions: B:P.224 Hydrogen bonds: B:R.34, B:I.35, B:H.55, B:N.56, B:N.56, B:S.57, B:D.82, B:L.83, B:T.84, B:T.84, B:N.113, B:S.115, B:S.115, B:S.115, B:Y.194, B:K.198, B:S.227, B:L.228 Water bridges: B:G.36, B:N.113 Salt bridges: B:R.34, B:R.34 pi-Stacking: B:H.55 NAP.5: 25 residues within 4Å: Chain C: G.30, R.34, I.35, H.53, Y.54, H.55, N.56, S.57, A.81, D.82, L.83, T.84, N.113, A.114, S.115, T.146, L.179, C.180, D.181, Y.194, K.198, P.224, G.225, V.226, S.227 21 PLIP interactions: 21 interactions with chain C Hydrophobic interactions: C:P.224 Hydrogen bonds: C:R.34, C:I.35, C:H.55, C:N.56, C:N.56, C:S.57, C:D.82, C:L.83, C:T.84, C:N.113, C:S.115, C:S.115, C:S.115, C:T.146, C:K.198, C:S.227 Water bridges: C:G.36, C:N.113 Salt bridges: C:R.34, C:R.34 NAP.6: 27 residues within 4Å: Chain D: G.30, R.34, I.35, H.53, Y.54, H.55, N.56, S.57, A.81, D.82, L.83, T.84, N.113, A.114, S.115, A.116, T.146, L.179, C.180, D.181, Y.194, K.198, P.224, G.225, V.226, S.227 Ligands: GJQ.7 27 PLIP interactions: 27 interactions with chain D Hydrophobic interactions: D:P.224 Hydrogen bonds: D:R.34, D:I.35, D:H.55, D:H.55, D:N.56, D:N.56, D:S.57, D:D.82, D:D.82, D:L.83, D:T.84, D:T.84, D:N.113, D:S.115, D:S.115, D:S.115, D:Y.194, D:K.198, D:S.227, D:S.227 Water bridges: D:G.36, D:N.113, D:S.115 Salt bridges: D:R.34, D:R.34 pi-Stacking: D:H.55

3 x GJQ: (2~{R})-1-(3,4-dichlorophenyl)-2-(4-nitrophenyl)-2~{H}-1,3,5-triazine-4,6-diamine(Non-covalent)

GJQ.2: 10 residues within 4Å: Chain A: R.34, S.115, F.117, D.181, Y.194, S.227, L.228, L.229, P.230 Ligands: NAP.1 8 PLIP interactions: 8 interactions with chain A Hydrophobic interactions: A:F.117, A:P.230 Hydrogen bonds: A:S.115, A:S.115, A:Y.194 pi-Stacking: A:F.117 Halogen bonds: A:S.227, A:L.228 GJQ.4: 11 residues within 4Å: Chain B: R.34, S.115, A.116, F.117, Y.194, S.227, L.228, L.229, P.230, A.232 Ligands: NAP.3 10 PLIP interactions: 10 interactions with chain B Hydrophobic interactions: B:F.117, B:P.230, B:P.230 Hydrogen bonds: B:S.115, B:S.115, B:Y.194, B:Y.194 pi-Stacking: B:F.117 pi-Cation interactions: B:F.117 Halogen bonds: B:S.227 GJQ.7: 9 residues within 4Å: Chain D: R.34, S.115, F.117, Y.194, S.227, L.228, L.229, P.230 Ligands: NAP.6 9 PLIP interactions: 9 interactions with chain D Hydrophobic interactions: D:F.117 Hydrogen bonds: D:S.115, D:S.115, D:Y.194, D:Y.194 pi-Stacking: D:F.117 pi-Cation interactions: D:F.117 Halogen bonds: D:S.227, D:L.228

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Landi, G. et al., Structural Insights into the Development of Cycloguanil Derivatives asTrypanosoma bruceiPteridine-Reductase-1 Inhibitors. Acs Infect Dis. (2019)

Release Date

2019-05-08

Peptides

Pteridine reductase: ABCD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

C
C

D
D

Pteridine reductase

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