4zfy

X-ray diffraction
2.42Å resolution

Structural studies on a non-toxic homologue of type II RIPs from Momordica charantia (bitter gourd) in complex with ALPHA-METHYL-D-GALACTOSIDE

Released:

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:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-110641 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (3 distinct):
Ribosome-inactivating protein Chain: A
Molecule details ›
Chain: A
Length: 247 amino acids
Theoretical weight: 27.64 KDa
Source organism: Momordica charantia
UniProt:
  • Canonical: B7X8M2 (Residues: 24-270; Coverage: 47%)
Gene names: LOC111023549, MCL1
Sequence domains: Ribosome inactivating protein
Structure domains:
Ribosome-inactivating protein Chain: B
Molecule details ›
Chain: B
Length: 261 amino acids
Theoretical weight: 29.02 KDa
Source organism: Momordica charantia
UniProt:
  • Canonical: B7X8M2 (Residues: 287-547; Coverage: 50%)
Gene names: LOC111023549, MCL1
Sequence domains: Ricin-type beta-trefoil lectin domain
Structure domains: Trefoil (Acidic Fibroblast Growth Factor, subunit A)

Ligands and Environments

Carbohydrate polymer : NEW Components: NAG, BMA
2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: BRUKER AXS MICROSTAR
Spacegroup: P21212
Unit cell:
a: 110.3Å b: 136.99Å c: 44.4Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.224 0.221 0.287