Biological Assembly 1  

 3D View: Structure | 1D-3D View | Validation Report

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 27.40 kDa 
• Atom Count: 2096 
• Modelled Residue Count: 246 
• Deposited Residue Count: 246 
• Unique protein chains: 1

1AHC

THE N-GLYCOSIDASE MECHANISM OF RIBOSOME-INACTIVATING PROTEINS IMPLIED BY CRYSTAL STRUCTURES OF ALPHA-MOMORCHARIN

• PDB DOI: 10.2210/pdb1AHC/pdb

• Classification: GLYCOSIDASE
• Organism(s): Momordica charantia
• Mutation(s): No 


• Deposited: 1994-01-07 Released: 1994-06-22 
• Deposition Author(s): Ren, J., Wang, Y., Dong, Y., Stuart, D.I.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Work: 0.180 
• R-Value Observed: 0.180 

Literature

The N-glycosidase mechanism of ribosome-inactivating proteins implied by crystal structures of alpha-momorcharin.

Ren, J., Wang, Y., Dong, Y., Stuart, D.I.

(1994) Structure 2: 7-16

• PubMed: 8075985 
• DOI: 10.1016/s0969-2126(00)00004-6
• Primary Citation of Related Structures:  
  1AHA, 1AHB, 1AHC


• PubMed Abstract: 
  

alpha-Momorcharin (alpha MMC) is a type I ribosome-inactivating protein. It inhibits protein synthesis by hydrolytically removing a specific adenine residue from a highly conserved, single-stranded loop of rRNA.

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Related Citations: 

• Molecular Replacement Studies of Alpha-Momorcharin (in: Proceedings of the Ccp4 Study Weekend: Molecular Replacement, Edited by E.J.Dodson, S.Gover,W.Wolf)
  Ren, J., Wang, Y., Dong, Y., Stuart, D.I.
  (1992) Daresbury Lab [rep ]dl/sci/r 33: 116

• Crystals of Alpha-Momorcharin, a New Ribosome-Inactivating Protein
  Feng, Z., Li, W.W., Yeung, H.W., Chen, S., Wang, Y., Lin, X., Dong, Y., Wang, J.
  (1990) J Mol Biol 214: 625

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Organizational Affiliation: 

Oxford Centre for Molecular Sciences, UK.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ALPHA-MOMORCHARIN	A	246	Momordica charantia	Mutation(s): 0  EC: 3.2.2.22
UniProt
Find proteins for P16094 (Momordica charantia) Explore P16094  Go to UniProtKB:  P16094

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Work: 0.180 
• R-Value Observed: 0.180 
• Space Group: H 3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 131.3	α = 90
b = 131.3	β = 90
c = 40.2	γ = 120

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1994-01-07 
• Released Date: 1994-06-22 
Deposition Author(s): Ren, J., Wang, Y., Dong, Y., Stuart, D.I.

Revision History  

• Version 1.0: 1994-06-22
  Type: Initial release
  
• Version 1.1: 2008-03-03
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance