SMTL ID : 3eig.1

Crystal structure of a methotrexate-resistant mutant of human dihydrofolate reductase

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.70 Å

Oligo State

monomer

Ligands

1 x MTX: METHOTREXATE(Non-covalent)

MTX.1: 19 residues within 4Å: Chain A: I.7, V.8, A.9, D.21, L.22, E.30, R.31, R.32, F.34, E.35, S.59, I.60, P.61, N.64, L.67, R.70, V.115, Y.121, T.136 16 PLIP interactions: 16 interactions with chain A Hydrophobic interactions: A:F.34, A:E.35, A:I.60 Hydrogen bonds: A:I.7, A:V.8, A:R.31, A:N.64, A:T.136 Water bridges: A:V.8, A:A.9, A:R.31, A:Y.121, A:Y.121 Salt bridges: A:E.30, A:R.31, A:R.70

8 x SO4: SULFATE ION(Non-functional Binders)

SO4.2: 7 residues within 4Å: Chain A: G.53, K.54, K.55, T.56, G.116, G.117, V.120 8 PLIP interactions: 8 interactions with chain A Hydrogen bonds: A:G.53, A:K.55, A:T.56, A:T.56, A:G.117 Water bridges: A:K.54, A:S.118, A:S.118 SO4.3: 4 residues within 4Å: Chain A: K.54, S.76, R.77, E.78 8 PLIP interactions: 8 interactions with chain A Hydrogen bonds: A:S.76, A:R.77, A:E.78 Water bridges: A:K.54, A:K.54, A:K.54, A:S.119 Salt bridges: A:K.54 SO4.4: 4 residues within 4Å: Chain A: H.130, K.132, E.183 Ligands: CD.10 2 PLIP interactions: 2 interactions with chain A Salt bridges: A:H.130, A:K.132 SO4.5: 3 residues within 4Å: Chain A: Q.47, K.68, G.69 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:Q.47, A:G.69 Water bridges: A:Q.47 SO4.6: 3 residues within 4Å: Chain A: P.163, G.164, V.165 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:G.164, A:V.165 Water bridges: A:E.161 SO4.7: 2 residues within 4Å: Chain A: E.172, K.173 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:K.173 SO4.8: 2 residues within 4Å: Chain A: P.61, E.62 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:E.62 SO4.9: 5 residues within 4Å: Chain A: P.66, R.70, I.71, N.72, H.87 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:N.72 Water bridges: A:N.72, A:H.87

1 x CD: CADMIUM ION(Non-covalent)

CD.10: 2 residues within 4Å: Chain A: E.183 Ligands: SO4.4 3 PLIP interactions: 2 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:E.183, A:E.183, H2O.4

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Volpato, J.P. et al., Multiple conformers in active site of human dihydrofolate reductase F31R/Q35E double mutant suggest structural basis for methotrexate resistance. J.Biol.Chem. (2009)

Release Date

2009-05-26

Peptides

Dihydrofolate reductase: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

Dihydrofolate reductase