Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

Urease in jack-bean (Canavalia ensiformis (L.) DC) seeds is a cytosolic protein

L. Faye, J.S. Greenwood and M.J. Chrispeels
Planta
Vol. 168, No. 4 (1986), pp. 579-585
Published by: Springer
Stable URL: http://www.jstor.org/stable/23378206
Page Count: 7
  • More info
  • Cite this Item
Urease in jack-bean (Canavalia ensiformis (L.) DC) seeds is a cytosolic protein
Preview not available

Abstract

Urease (EC 3.5.1.5) is abundantly present in the seeds of many species of Leguminosae. There is at present conflicting information in the literature about its subcellular location and status as a glycoprotein. We have made a study of the subcellular location of urease in jack-bean cotyledons using an immunocytochemical approach; in addition, we studied the biosynthesis and glycoprotein nature of the enzyme using several biochemical approaches. All the results are in agreement with the interpretation that the seed urease is not a glycoprotein, is synthesized on free polysomes, and is present in the cytosol of the storage parenchyma cells.

Page Thumbnails

  • Thumbnail: Page 
[579]
    [579]
  • Thumbnail: Page 
580
    580
  • Thumbnail: Page 
581
    581
  • Thumbnail: Page 
582
    582
  • Thumbnail: Page 
583
    583
  • Thumbnail: Page 
584
    584
  • Thumbnail: Page 
585
    585