5O7Q

Crystal structure of a single chain monellin mutant (Y65R) pH 5.5


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.72 Å
  • R-Value Free: 0.271 
  • R-Value Work: 0.218 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

pH driven fibrillar aggregation of the super-sweet protein Y65R-MNEI: A step-by-step structural analysis.

Pica, A.Leone, S.Di Girolamo, R.Donnarumma, F.Emendato, A.Rega, M.F.Merlino, A.Picone, D.

(2017) Biochim. Biophys. Acta 1862: 808-815

  • DOI: 10.1016/j.bbagen.2017.12.012
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • MNEI and its variant Y65R-MNEI are sweet proteins with potential applications as sweeteners in food industry. Also, they are often used as model systems for folding and aggregation studies.

    MNEI and its variant Y65R-MNEI are sweet proteins with potential applications as sweeteners in food industry. Also, they are often used as model systems for folding and aggregation studies.


    Organizational Affiliation

    Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cintia, I-80126, Napoli, Italy.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Monellin chain B,Monellin chain A
A, B
96Dioscoreophyllum cumminsiiMutation(s): 0 
Find proteins for P02882 (Dioscoreophyllum cumminsii)
Go to UniProtKB:  P02882
Find proteins for P02881 (Dioscoreophyllum cumminsii)
Go to UniProtKB:  P02881
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
PEG
Query on PEG

Download SDF File 
Download CCD File 
B
DI(HYDROXYETHYL)ETHER
C4 H10 O3
MTHSVFCYNBDYFN-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.72 Å
  • R-Value Free: 0.271 
  • R-Value Work: 0.218 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 35.339α = 90.00
b = 84.545β = 90.00
c = 130.517γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2017-06-09 
  • Released Date: 2018-01-10 
  • Deposition Author(s): Pica, A., Merlino, A.

Revision History 

  • Version 1.0: 2018-01-10
    Type: Initial release
  • Version 1.1: 2018-02-07
    Type: Database references