3EKI

Structural insights of the Mycoplasma hyorhinis protein Mh-p37: A putative thiamine pyrophosphate transporter


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.183 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structural insights into the extracytoplasmic thiamine-binding lipoprotein p37 of Mycoplasma hyorhinis

Sippel, K.H.Robbins, A.H.Reutzel, R.Boehlein, S.K.Namiki, K.Goodison, S.Agbandje-McKenna, M.Rosser, C.J.McKenna, R.

(2009) J Bacteriol 191: 2585-2592

  • DOI: 10.1128/JB.01680-08
  • Primary Citation of Related Structures:  
    3EKI

  • PubMed Abstract: 
  • The Mycoplasma hyorhinis protein p37 has been implicated in tumorigenic transformation for more than 20 years. Though there are many speculations as to its function, based solely on sequence homology, the issue has remained unresolved. Presented here is the 1 ...

    The Mycoplasma hyorhinis protein p37 has been implicated in tumorigenic transformation for more than 20 years. Though there are many speculations as to its function, based solely on sequence homology, the issue has remained unresolved. Presented here is the 1.6-A-resolution refined crystal structure of M. hyorhinis p37, renamed the extracytoplasmic thiamine-binding lipoprotein (Cypl). The structure shows thiamine pyrophosphate (TPP) and two calcium ions are bound to Cypl and give the first insights into possible functions of the Cypl-like family of proteins. Sequence alignments of Cypl-like proteins between several different species of mycoplasma show that the thiamine-binding site is likely conserved and structural alignments reveal the similarity of Cypl to various binding proteins. While the experimentally determined function of Cypl remains unknown, the structure shows that the protein is a TPP-binding protein, opening up many avenues for future mechanistic studies and making Cypl a possible target for combating mycoplasma infections and tumorigenic transformation.


    Related Citations: 
    • Structure determination of the cancer-associated mycoplasma hyorhinis protein Mh-p37
      Sippel, K.H., Robbins, A.H., Reutzal, R., Domsic, J., Boehlein, S.K., Govindasamy, L., Agbandje-McKenna, M., Rosser, C.J., McKenna, R.
      (2008) Acta Crystallogr D Biol Crystallogr --: --

    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, College of Medicine, University of Florida, Gainesville, FL 32610, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
High affinity transport system protein p37A403Mycoplasma hyorhinisMutation(s): 0 
Gene Names: p37
UniProt
Find proteins for P15363 (Mycoplasma hyorhinis)
Explore P15363 
Go to UniProtKB:  P15363
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.183 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 49.457α = 90
b = 67.586β = 106.28
c = 59.838γ = 90
Software Package:
Software NamePurpose
SHELXL-97refinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-06-23
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Non-polymer description, Version format compliance