› 3qjk

X-ray diffraction
3Å resolution

Structure of Calcium Binding Protein-1 from Entamoeba histolytica in complex with Lead

Released:
DOI: 10.2210/pdb3qjk/pdb
PDB entry 3qjk coloured by chain, front view.
PDB entry 3qjk coloured by chain, side view.
PDB entry 3qjk coloured by chain, top view.
Source organism: Entamoeba histolytica HM-1:IMSS
Entry authors: Kumar S, Gourinath S

Function and Biology Details

Biochemical function:
Biological process:
Cellular component:
Sequence domains:

Structure analysis Details

Assembly composition:
homo trimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-153664 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Calcium-binding protein 1 Chains: A, B
Molecule details ›
Chains: A, B
Length: 134 amino acids
Theoretical weight: 14.97 KDa
Source organism: Entamoeba histolytica HM-1:IMSS
Expression system: Escherichia coli
UniProt:
  • Canonical: P38505 (Residues: 1-134; Coverage: 100%)
Gene names: CaBP1, EHI_120900
Sequence domains: EF-hand domain pair
Structure domains: EF-hand

Ligands and Environments

2 bound ligands:
Ligand PB 4 x PB
Ligand ACT 2 x ACT
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: BRUKER AXS MICROSTAR
Spacegroup: P63
Unit cell:
a: 95.264Å b: 95.264Å c: 64.597Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.255 0.252 0.283
Expression system: Escherichia coli

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