SMTL ID : 4p68.1

Electrostatics of Active Site Microenvironments for E. coli DHFR

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.26 Å

Oligo State

monomer

Ligands

1 x MTX: METHOTREXATE(Non-covalent)

MTX.1: 15 residues within 4Å: Chain A: I.5, A.6, A.7, M.20, D.27, F.31, K.32, S.49, I.50, C.54, R.57, I.94, Y.100, T.113 Ligands: NAP.2 10 PLIP interactions: 10 interactions with chain A Hydrophobic interactions: A:F.31, A:K.32, A:I.50 Hydrogen bonds: A:I.5, A:A.6, A:T.113 Water bridges: A:A.6 Salt bridges: A:D.27, A:K.32, A:R.57

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

NAP.2: 28 residues within 4Å: Chain A: A.6, A.7, I.14, G.15, M.16, N.18, A.19, M.20, G.43, R.44, H.45, T.46, L.62, S.63, S.64, Q.65, K.76, V.78, I.94, G.95, G.96, G.97, R.98, V.99, Y.100, Q.102, T.123 Ligands: MTX.1 29 PLIP interactions: 29 interactions with chain A Hydrophobic interactions: A:T.46 Hydrogen bonds: A:A.7, A:I.14, A:M.16, A:N.18, A:N.18, A:G.43, A:R.44, A:H.45, A:H.45, A:T.46, A:T.46, A:S.63, A:S.64, A:G.95, A:G.96, A:G.97, A:R.98, A:V.99, A:Y.100, A:Q.102, A:Q.102 Water bridges: A:R.44, A:H.45, A:R.98, A:T.123 Salt bridges: A:R.44, A:H.45, A:H.45

2 x ACT: ACETATE ION(Non-functional Binders)

ACT.3: 1 residues within 4Å: Chain A: D.87 No protein-ligand interaction detected (PLIP) ACT.4: 4 residues within 4Å: Chain A: E.48, S.49, G.51 Ligands: CA.6 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:I.50

2 x CA: CALCIUM ION(Non-covalent)(Non-functional Binders)

CA.5: 1 residues within 4Å: Chain A: R.159 No protein-ligand interaction detected (PLIP) CA.6: 1 residues within 4Å: Ligands: ACT.4 No protein-ligand interaction detected (PLIP)

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Liu, C.T. et al., Probing the electrostatics of active site microenvironments along the catalytic cycle for Escherichia coli dihydrofolate reductase. J.Am.Chem.Soc. (2014)

Release Date

2014-07-16

Peptides

Dihydrofolate reductase: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

Dihydrofolate reductase