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.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.

Arabidopsis CHL27, Located in Both Envelope and Thylakoid Membranes, Is Required for the Synthesis of Protochlorophyllide

Stephen Tottey, Maryse A. Block, Michael Allen, Tomas Westergren, Catherine Albrieux, Henrik V. Scheller, Sabeeha Merchant and Poul Erik Jensen
Proceedings of the National Academy of Sciences of the United States of America
Vol. 100, No. 26 (Dec. 23, 2003), pp. 16119-16124
Stable URL: http://www.jstor.org/stable/3149140
Page Count: 6
  • Read Online (Free)
  • Subscribe ($19.50)
  • Cite this Item
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Arabidopsis CHL27, Located in Both Envelope and Thylakoid Membranes, Is Required for the Synthesis of Protochlorophyllide
Preview not available

Abstract

CHL27, the Arabidopsis homologue to Chlamydomonas Crd1, a plastid-localized putative diiron protein, is required for the synthesis of protochlorophyllide and therefore is a candidate subunit of the aerobic cyclase in chlorophyll biosynthesis. δ-Aminolevulinic acid-fed antisense Arabidopsis plants with reduced amounts of Crd1/CHL27 accumulate Mg-protoporphyrin IX monomethyl ester, the substrate of the cyclase reaction. Mutant plants have chlorotic leaves with reduced abundance of all chlorophyll proteins. Fractionation of Arabidopsis chloroplast membranes shows that Crd1/CHL27 is equally distributed on a membrane-weight basis in the thylakoid and inner-envelope membranes.

Page Thumbnails

  • Thumbnail: Page 
[16119]
    [16119]
  • Thumbnail: Page 
16120
    16120
  • Thumbnail: Page 
16121
    16121
  • Thumbnail: Page 
16122
    16122
  • Thumbnail: Page 
16123
    16123
  • Thumbnail: Page 
16124
    16124