Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 27396.29 
• Atom Count: 1933 
• Residue Count: 246 
• Unique protein chains: 1

1AHC

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

• DOI: 10.2210/pdb1AHC/pdb

• Classification: GLYCOSIDASE
• Organism(s): Momordica charantia


• 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 Å
• R-Value Work: 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 
• Primary Citation of Related Structures:  
  1AHB, 1AHA


• 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

Find similar proteins by: Sequence  |  Structure

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2 Å
• R-Value Work: 0.180 
• Space Group: H 3

Unit Cell:

Length (Å)	Angle (°)
a = 131.300	α = 90.00
b = 131.300	β = 90.00
c = 40.200	γ = 120.00

Software Package:

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

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
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance