SMTL ID : 1sej.3 (2 other biounits)

Crystal Structure of Dihydrofolate Reductase-Thymidylate Synthase from Cryptosporidium hominis Bound to 1843U89/NADPH/dUMP

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.87 Å

Oligo State

homo-dimer

Ligands

2 x UMP: 2'-DEOXYURIDINE 5'-MONOPHOSPHATE(Non-covalent)

UMP.1: 15 residues within 4Å: Chain A: R.257, L.399, C.402, H.403, Q.422, R.423, S.424, C.425, D.426, N.434, H.464, Y.466 Chain B: R.382, R.383 Ligands: F89.2 9 PLIP interactions: 7 interactions with chain A, 2 interactions with chain B Hydrogen bonds: A:S.424, A:D.426, A:N.434, A:N.434, A:H.464 Salt bridges: A:R.257, A:R.423, B:R.382, B:R.383 UMP.5: 15 residues within 4Å: Chain A: R.382, R.383 Chain B: R.257, L.399, C.402, H.403, Q.422, R.423, S.424, C.425, D.426, N.434, H.464, Y.466 Ligands: F89.6 10 PLIP interactions: 2 interactions with chain A, 8 interactions with chain B Salt bridges: A:R.382, A:R.383, B:R.257, B:R.423 Hydrogen bonds: B:S.424, B:D.426, B:N.434, B:N.434, B:H.464, B:Y.466

4 x F89: S)-2-(5(((1,2-DIHYDRO-3-METHYL-1-OXOBENZO(F)QUINAZOLIN-9-YL)METHYL)AMINO)1-OXO-2-ISOINDOLINYL)GLUTARIC ACID(Non-covalent)

F89.2: 16 residues within 4Å: Chain A: S.290, E.294, Y.314, I.315, W.316, N.319, L.399, D.426, L.429, G.430, F.433, Y.466, M.517, M.519, A.520 Ligands: UMP.1 11 PLIP interactions: 11 interactions with chain A Hydrophobic interactions: A:I.315, A:I.315, A:L.399 Hydrogen bonds: A:S.290, A:E.294, A:Y.314, A:D.426, A:D.426, A:M.517 pi-Stacking: A:F.433, A:F.433 F89.3: 14 residues within 4Å: Chain A: V.9, V.10, A.11, L.25, D.32, L.33, F.36, S.37, I.62, L.67, R.70, C.113, T.134 Ligands: NDP.4 9 PLIP interactions: 9 interactions with chain A Hydrophobic interactions: A:A.11, A:L.25, A:L.33, A:L.33, A:F.36, A:I.62 Hydrogen bonds: A:D.32, A:D.32 Salt bridges: A:R.70 F89.6: 16 residues within 4Å: Chain B: S.290, E.294, Y.314, I.315, W.316, N.319, L.399, D.426, L.429, G.430, F.433, Y.466, M.517, M.519, A.520 Ligands: UMP.5 10 PLIP interactions: 10 interactions with chain B Hydrophobic interactions: B:I.315, B:I.315, B:L.399 Hydrogen bonds: B:S.290, B:E.294, B:Y.314, B:D.426, B:M.517 pi-Stacking: B:F.433, B:F.433 F89.7: 14 residues within 4Å: Chain B: V.9, V.10, A.11, L.25, D.32, L.33, F.36, S.37, I.62, L.67, R.70, C.113, T.134 Ligands: NDP.8 8 PLIP interactions: 8 interactions with chain B Hydrophobic interactions: B:A.11, B:L.25, B:L.33, B:L.33, B:F.36, B:I.62 Hydrogen bonds: B:D.32 Salt bridges: B:R.70

2 x NDP: NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE(Non-covalent)

NDP.4: 28 residues within 4Å: Chain A: V.10, A.11, I.19, G.20, I.21, G.23, Q.24, L.25, G.55, R.56, K.57, T.58, S.61, I.75, S.76, S.77, S.78, R.92, C.113, G.114, G.115, E.116, S.117, I.118, Y.119, D.121, T.145 Ligands: F89.3 24 PLIP interactions: 24 interactions with chain A Hydrophobic interactions: A:L.25, A:T.58 Hydrogen bonds: A:A.11, A:I.19, A:I.21, A:G.23, A:G.23, A:G.55, A:R.56, A:K.57, A:T.58, A:S.61, A:S.76, A:S.77, A:S.78, A:G.114, A:E.116, A:S.117, A:S.117, A:I.118, A:D.121, A:D.121, A:T.145 Salt bridges: A:R.56 NDP.8: 28 residues within 4Å: Chain B: V.10, A.11, I.19, G.20, I.21, G.23, Q.24, L.25, G.55, R.56, K.57, T.58, S.61, I.75, S.76, S.77, S.78, R.92, C.113, G.114, G.115, E.116, S.117, I.118, Y.119, D.121, T.145 Ligands: F89.7 24 PLIP interactions: 24 interactions with chain B Hydrophobic interactions: B:L.25, B:T.58 Hydrogen bonds: B:A.11, B:I.19, B:I.21, B:G.23, B:G.23, B:G.55, B:R.56, B:K.57, B:T.58, B:T.58, B:S.61, B:S.76, B:S.77, B:S.78, B:G.114, B:E.116, B:S.117, B:S.117, B:I.118, B:Y.119, B:D.121 Salt bridges: B:R.56

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Anderson, A.C., Two crystal structures of dihydrofolate reductase-thymidylate synthase from Cryptosporidium hominis reveal protein-ligand interactions including a structural basis for observed antifolate resistance. Acta Crystallogr.,Sect.F (2005)

Release Date

2004-05-18

Peptides

bifunctional dihydrofolate reductase-thymidylate synthase: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
E

B
E

bifunctional dihydrofolate reductase-thymidylate synthase

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