X-ray diffraction
1.9Å resolution

The crystal structure of an ABC transporter periplasmic binding protein YdcS from Escherichia coli BW25113

Entry authors: Tan K, SKarina T, Di Leo R, Savchenko A, Joachimiak A, Center for Structural Genomics of Infectious Diseases (CSGID)

Function and Biology Details

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

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Bacterial extracellular solute-binding family protein Chains: A, B
Molecule details ›
Chains: A, B
Length: 361 amino acids
Theoretical weight: 40.57 KDa
Source organism: Escherichia coli 1-392-07_S4_C3
Expression system: Escherichia coli BL21(DE3)

Ligands and Environments

2 bound ligands:
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 19-ID
Spacegroup: C2
Unit cell:
a: 161.895Å b: 42.896Å c: 122.771Å
α: 90° β: 121.96° γ: 90°
R R work R free
0.183 0.181 0.227
Expression system: Escherichia coli BL21(DE3)