SMTL ID : 1jol.1

THE CRYSTAL STRUCTURE OF THE BINARY COMPLEX BETWEEN FOLINIC ACID (LEUCOVORIN) AND E. COLI DIHYDROFOLATE REDUCTASE

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.96 Å

Oligo State

homo-dimer

Ligands

2 x CL: CHLORIDE ION(Non-functional Binders)

CL.1: 6 residues within 4Å: Chain A: G.43, R.44, H.45, T.46, G.95, G.96 Ligand excluded by PLIP CL.3: 4 residues within 4Å: Chain B: G.43, H.45, T.46, G.96 Ligand excluded by PLIP

2 x FFO: N-[4-({[(6S)-2-amino-5-formyl-4-oxo-3,4,5,6,7,8-hexahydropteridin-6-yl]methyl}amino)benzoyl]-L-glutamic acid(Non-covalent)

FFO.2: 15 residues within 4Å: Chain A: I.5, A.6, A.7, D.27, L.28, W.30, F.31, K.32, I.50, R.52, L.54, R.57, I.94, Y.100, T.113 20 PLIP interactions: 20 interactions with chain A Hydrophobic interactions: A:L.28, A:I.50 Hydrogen bonds: A:I.5, A:R.52, A:Y.100, A:T.113, A:T.113 Water bridges: A:A.6, A:A.7, A:A.7, A:G.15, A:D.27, A:D.27, A:K.32, A:K.32 Salt bridges: A:D.27, A:K.32, A:R.57 pi-Stacking: A:F.31, A:F.31 FFO.5: 15 residues within 4Å: Chain B: I.5, A.6, A.7, D.27, L.28, F.31, K.32, I.50, R.52, L.54, P.55, R.57, I.94, Y.100, T.113 13 PLIP interactions: 13 interactions with chain B Hydrophobic interactions: B:L.28, B:I.50, B:L.54 Hydrogen bonds: B:I.5, B:R.52, B:T.113, B:T.113 Water bridges: B:A.7, B:A.7, B:Y.100 Salt bridges: B:D.27, B:R.57 pi-Stacking: B:F.31

1 x CA: CALCIUM ION(Non-covalent)

CA.4: 1 residues within 4Å: Chain B: S.135 3 PLIP interactions: 1 interactions with chain B, 2 Ligand-Water interactions Metal complexes: B:S.135, H2O.11, H2O.11

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Lee, H. et al., Crystal structures of Escherichia coli dihydrofolate reductase complexed with 5-formyltetrahydrofolate (folinic acid) in two space groups: evidence for enolization of pteridine O4. Biochemistry (1996)

Release Date

1996-11-08

Peptides

DIHYDROFOLATE REDUCTASE: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

DIHYDROFOLATE REDUCTASE

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