3zk7

X-ray diffraction
1.69Å resolution

CRYSTAL STRUCTURE OF PNEUMOCOCCAL SURFACE ANTIGEN PSAA IN THE METAL-FREE, OPEN STATE

Released:

Function and Biology Details

Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Manganese ABC transporter substrate-binding lipoprotein Chains: A, B
Molecule details ›
Chains: A, B
Length: 278 amino acids
Theoretical weight: 31.45 KDa
Source organism: Streptococcus pneumoniae
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P0A4G2 (Residues: 32-309; Coverage: 96%)
Gene names: SP_1650, psaA
Sequence domains: Zinc-uptake complex component A periplasmic
Structure domains: Nitrogenase molybdenum iron protein domain

Ligands and Environments

1 bound ligand:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: AUSTRALIAN SYNCHROTRON BEAMLINE MX2
Spacegroup: P1
Unit cell:
a: 40.94Å b: 59.91Å c: 62.63Å
α: 107.02° β: 103.9° γ: 96.96°
R-values:
R R work R free
0.163 0.161 0.192
Expression system: Escherichia coli BL21(DE3)