PDBe 4hv3

X-ray diffraction
1.54Å resolution

Structure of Ricin A chain bound with N-(N-(pterin-7-yl)carbonyl-L-serinyl)-L-tryptophan


Function and Biology Details

Reaction catalysed:
Endohydrolysis of the N-glycosidic bond at one specific adenosine on the 28S rRNA.
Biochemical function:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Ricin A chain Chain: A
Molecule details ›
Chain: A
Length: 268 amino acids
Theoretical weight: 30.07 KDa
Source organism: Ricinus communis
Expression system: Escherichia coli
  • Canonical: P02879 (Residues: 36-302; Coverage: 49%)
Sequence domains: Ribosome inactivating protein
Structure domains:

Ligands and Environments

3 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 5.0.2
Spacegroup: P41212
Unit cell:
a: 67.827Å b: 67.827Å c: 140.673Å
α: 90° β: 90° γ: 90°
R R work R free
0.199 0.197 0.231
Expression system: Escherichia coli