› 3kue

X-ray diffraction
1.54Å resolution

Crystal structure of E. coli HPPK(E77A)

Released:
DOI: 10.2210/pdb3kue/pdb
PDB entry 3kue coloured by chain, front view.
PDB entry 3kue coloured by chain, side view.
PDB entry 3kue coloured by chain, top view.
Source organism: Escherichia coli K-12
Entry authors: Blaszczyk J, Li Y, Yan H, Ji X

Function and Biology Details

Reaction catalysed: 
ATP + 6-hydroxymethyl-7,8-dihydropterin = AMP + 6-hydroxymethyl-7,8-dihydropterin diphosphate
Biochemical function:
Biological process:
Cellular component:
  • not assigned
Sequence domains:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-150686 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
2-amino-4-hydroxy-6-hydroxymethyldihydropteridine pyrophosphokinase Chain: A
Molecule details ›
Chain: A
Length: 158 amino acids
Theoretical weight: 17.91 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli
UniProt:
  • Canonical: P26281 (Residues: 2-159; Coverage: 99%)
Gene names: JW0138, b0142, folK
Sequence domains: 7,8-dihydro-6-hydroxymethylpterin-pyrophosphokinase (HPPK)
Structure domains: 7,8-Dihydro-6-hydroxymethylpterin-pyrophosphokinase HPPK

Ligands and Environments

2 bound ligands:
Ligand CL 1 x CL
Ligand ACT 1 x ACT
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X9B
Spacegroup: P21
Unit cell:
a: 36.15Å b: 46.81Å c: 43.36Å
α: 90° β: 110.55° γ: 90°
R-values:
R R work R free
0.193 0.191 0.219
Expression system: Escherichia coli

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