1IV9 | pdb_00001iv9

Crystal Structure of Single Chain Monellin

• PDB DOI: https://doi.org/10.2210/pdb1IV9/pdb

• Classification: PLANT PROTEIN
• Organism(s): Dioscoreophyllum cumminsii
• Expression System: Escherichia coli str. K-12 substr. W3110
• Mutation(s): No 


• Deposited: 2002-03-15 Released: 2003-10-07 
• Deposition Author(s): Tamada, T., Kato, Y., Kuroki, R.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 
  0.217 (Depositor) 
• R-Value Work: 
  0.181 (Depositor) 
• R-Value Observed: 
  0.183 (Depositor) 

Starting Model: experimental

Literature

The Effect of Single Chain Derivatization on the Structure and Stability of the Monellin

Kato, Y., Tamada, T., Sone, H., Iijima, H., Kuroki, R.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 22.58 kDa 
• Atom Count: 1,645 
• Modeled Residue Count: 188 
• Deposited Residue Count: 192 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Monellin	A, B	96	Dioscoreophyllum cumminsii	Mutation(s): 0
UniProt
Find proteins for P02881 (Dioscoreophyllum cumminsii) Explore P02881  Go to UniProtKB:  P02881

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free:  0.217 (Depositor) 
• R-Value Work:  0.181 (Depositor) 
• R-Value Observed: 0.183 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 30.12	α = 90
b = 76.4	β = 99.5
c = 45.91	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
X-PLOR	model building
REFMAC	refinement
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2003-10-07 
Deposition Author(s): Tamada, T., Kato, Y., Kuroki, R.

Revision History  

• Version 1.0: 2003-10-07
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2017-08-23
  Changes: Refinement description, Source and taxonomy
• Version 1.4: 2023-10-25
  Changes: Data collection, Database references, Refinement description