SMTL ID : 1dyj.1

ISOMORPHOUS CRYSTAL STRUCTURES OF ESCHERICHIA COLI DIHYDROFOLATE REDUCTASE COMPLEXED WITH FOLATE, 5-DEAZAFOLATE AND 5,10-DIDEAZATETRAHYDROFOLATE: MECHANISTIC IMPLICATIONS

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.85 Å

Oligo State

homo-dimer

Ligands

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

CL.1: 5 residues within 4Å: Chain A: G.43, R.44, H.45, T.46, 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 DDF: 5,10-DIDEAZATETRAHYDROFOLIC ACID(Non-covalent)

DDF.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 18 PLIP interactions: 18 interactions with chain A Hydrophobic interactions: A:I.50, A:L.54 Hydrogen bonds: A:I.5, A:L.28, A:R.52, A:R.52, A:Y.100, A:T.113, A:T.113 Water bridges: A:A.6, A:A.7, A:D.27, A:D.27, A:K.32 Salt bridges: A:D.27, A:K.32, A:R.57 pi-Stacking: A:F.31 DDF.5: 13 residues within 4Å: Chain B: I.5, A.6, A.7, D.27, W.30, F.31, K.32, R.52, L.54, R.57, I.94, Y.100, T.113 13 PLIP interactions: 13 interactions with chain B Hydrophobic interactions: B:L.54 Hydrogen bonds: B:I.5, B:I.5, B:R.52, B:Y.100, B:T.113, B:T.113 Water bridges: B:A.6, B:A.7 Salt bridges: B:D.27, B:K.32, 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

Reyes, V.M. et al., Isomorphous crystal structures of Escherichia coli dihydrofolate reductase complexed with folate, 5-deazafolate, and 5,10-dideazatetrahydrofolate: mechanistic implications. Biochemistry (1995)

Release Date

1995-06-03

Peptides

DIHYDROFOLATE REDUCTASE: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

DIHYDROFOLATE REDUCTASE

Related Entries With Identical Sequence