SMTL ID : 1u71.1

Understanding the Role of Leu22 Variants in Methotrexate Resistance: Comparison of Wild-type and Leu22Arg Variant Mouse and Human Dihydrofolate Reductase Ternary Crystal Complexes with Methotrexate and NADPH

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.20 Å

Oligo State

monomer

Ligands

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

SO4.1: 8 residues within 4Å: Chain A: G.53, K.54, K.55, T.56, G.116, G.117, S.119, V.120 8 PLIP interactions: 8 interactions with chain A Hydrogen bonds: A:G.53, A:K.54, A:K.55, A:T.56, A:T.56, A:G.117, A:S.119 Water bridges: A:S.118 SO4.2: 4 residues within 4Å: Chain A: K.54, S.76, R.77, E.78 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:R.77, A:E.78 Salt bridges: A:K.54

1 x MXA: 6-(2,5-DIMETHOXY-BENZYL)-5-METHYL-PYRIDO[2,3-D]PYRIMIDINE-2,4-DIAMINE(Non-covalent)

MXA.3: 15 residues within 4Å: Chain A: I.7, V.8, A.9, G.20, D.21, R.22, E.30, F.31, F.34, S.59, P.61, N.64, V.115, Y.121, T.136 8 PLIP interactions: 8 interactions with chain A Hydrogen bonds: A:I.7, A:V.8, A:S.59, A:Y.121, A:T.136 Salt bridges: A:E.30 pi-Stacking: A:F.34, A:F.34

Links

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Citation

Cody, V. et al., Understanding the role of Leu22 variants in methotrexate resistance: comparison of wild-type and Leu22Arg variant mouse and human dihydrofolate reductase ternary crystal complexes with methotrexate and NADPH. Acta Crystallogr.,Sect.D (2005)

Release Date

2005-02-01

Peptides

Dihydrofolate reductase: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

Dihydrofolate reductase