2L4V

Three Dimensional Structure of Pineapple Cystatin


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the least restraint violations 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Resonance assignments and secondary structure of a phytocystatin from Ananas comosus

Irene, D.Chen, B.J.Lo, S.H.Liu, T.H.Tzen, J.T.C.Chyan, C.L.

(2012) Biomol.Nmr Assign. 6: 99-101

  • DOI: 10.1007/s12104-011-9334-1

  • PubMed Abstract: 
  • A cDNA encoding a cysteine protease inhibitor, cystatin was cloned from pineapple (Ananas comosus L.) stem. This clone was constructed into an expression vector and expressed in E. coli and purified to homogeneous. The recombinant pineapple cystatins ...

    A cDNA encoding a cysteine protease inhibitor, cystatin was cloned from pineapple (Ananas comosus L.) stem. This clone was constructed into an expression vector and expressed in E. coli and purified to homogeneous. The recombinant pineapple cystatins (AcCYS) showed effectively inhibitory activity toward cysteine proteases including papain, bromelain, and cathepsin B. In order to unravel its inhibitory action from structural point of view, multidimensional heteronuclear NMR techniques were used to characterize the structure of AcCYS. The full (1)H, (15)N, and (13)C resonance assignments of AcCYS were determined. The secondary structure of AcCYS was identified by using the assigned chemical shift of (1)Hα, (13)Cα, (13)Cβ, and (13)CO through the consensus chemical shift index (CSI). The results of CSI analysis suggest 5 β-strands (residues 45-47, 84-91, 94-104, 106-117, and 123-130) and one α-helix (residues 55-73).


    Related Citations: 
    • Solution structure of a phytocystatin from Ananas comosus and its molecular interaction with papain
      Irene, D.,Chung, T.Y.,Chen, B.J.,Liu, T.H.,Li, F.Y.,Tzen, J.T.C.,Wang, C.I.,Chyan, C.L.
      (2012) Plos One 7: e47865


    Organizational Affiliation

    Department of Chemistry, National Dong Hwa University, Shoufeng, Hualien, 974 Taiwan, ROC.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cystatin
A
135Ananas comosusMutation(s): 0 
Gene Names: CYS1
Find proteins for C9W181 (Ananas comosus)
Go to Gene View: CYS1
Go to UniProtKB:  C9W181
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the least restraint violations 
  • Olderado: 2L4V Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-10-26
    Type: Initial release
  • Version 1.1: 2015-02-11
    Type: Database references