SMTL ID : 1dls.1

METHOTREXATE-RESISTANT VARIANTS OF HUMAN DIHYDROFOLATE REDUCTASE WITH SUBSTITUTION OF LEUCINE 22: KINETICS, CRYSTALLOGRAPHY AND POTENTIAL AS SELECTABLE MARKERS

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.30 Å

Oligo State

monomer

Ligands

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

NDP.1: 30 residues within 4Å: Chain A: V.8, A.9, I.16, G.17, K.18, G.20, D.21, Y.22, W.24, G.53, K.54, K.55, T.56, S.59, L.75, S.76, R.77, E.78, R.91, S.92, V.115, G.116, G.117, S.118, S.119, V.120, Y.121, E.123, T.146 Ligands: MTX.2 31 PLIP interactions: 31 interactions with chain A Hydrophobic interactions: A:T.56 Hydrogen bonds: A:A.9, A:I.16, A:K.18, A:G.20, A:G.20, A:G.53, A:K.54, A:K.55, A:T.56, A:S.59, A:S.76, A:R.77, A:R.77, A:E.78, A:G.117, A:S.118, A:E.123, A:E.123 Water bridges: A:K.54, A:K.54, A:K.55, A:K.55, A:L.93, A:L.93, A:S.119, A:S.119, A:T.146, A:T.146 Salt bridges: A:K.54, A:K.55

1 x MTX: METHOTREXATE(Non-covalent)

MTX.2: 19 residues within 4Å: Chain A: I.7, V.8, A.9, Y.22, R.28, E.30, F.31, F.34, Q.35, S.59, I.60, P.61, N.64, L.67, R.70, V.115, Y.121, T.136 Ligands: NDP.1 15 PLIP interactions: 15 interactions with chain A Hydrophobic interactions: A:F.31, A:F.34 Hydrogen bonds: A:I.7, A:V.8, A:N.64, A:Y.121, A:T.136 Water bridges: A:E.30, A:E.30, A:R.32, A:R.32, A:K.68 Salt bridges: A:R.28, A:E.30, A:R.70

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Lewis, W.S. et al., Methotrexate-resistant variants of human dihydrofolate reductase with substitutions of leucine 22. Kinetics, crystallography, and potential as selectable markers. J.Biol.Chem. (1995)

Release Date

1995-04-20

Peptides

DIHYDROFOLATE REDUCTASE: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

DIHYDROFOLATE REDUCTASE