2i4c

X-ray diffraction
1.7Å resolution

Crystal structure of Bicarbonate Transport Protein CmpA from Synechocystis sp. PCC 6803 in complex with bicarbonate and calcium

Released:

Function and Biology Details

Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
PDBe Complex ID:
PDB-CPX-176282 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Bicarbonate-binding protein CmpA Chain: A
Molecule details ›
Chain: A
Length: 429 amino acids
Theoretical weight: 47.09 KDa
Source organism: Synechocystis sp. PCC 6803
Expression system: Escherichia coli
UniProt:
  • Canonical: Q55460 (Residues: 27-452; Coverage: 100%)
Gene names: cmpA, slr0040
Sequence domains: NMT1-like family
Structure domains: Periplasmic binding protein-like II

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: BRUKER AXS MICROSTAR
Spacegroup: P1
Unit cell:
a: 44.24Å b: 49.24Å c: 57.2Å
α: 87.4° β: 80.8° γ: 75.4°
R-values:
R R work R free
0.193 0.193 0.218
Expression system: Escherichia coli