These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Stabilization of the chlorophyll binding apoproteins, P700, CP47, CP43, D2, and D1, by synthesis of Zn-pheophytin a in intact etioplasts from barley.
    Author: Eichacker LA, Müller B, Helfrich M.
    Journal: FEBS Lett; 1996 Oct 21; 395(2-3):251-6. PubMed ID: 8898106.
    Abstract:
    Chlorophyll a was compared with Zn-pheophytin a for stabilization of chlorophyll binding apoproteins, P700, CP47, CP43, D2, and D1, in intact etioplasts from barley (Hordeum vulgare L.). Intact etioplasts were shown to effectively translate the chlorophyll apoproteins, to take up and esterify the exogenously added substrates, chlorophyllide a and Zn-pheophorbide a, with geranylgeraniolpyrophosphate. For stabilization of P700, CP47, D2, and D1, the product, Zn-pheophytin a, was shown to substitute for chlorophyll a. Stabilization of CP43 was selectively increased in the presence of Zn-pheophytin a. The degree of stabilization was shown to depend on the amount of newly synthesized Zn-pheophytin a and on the central atom of the chlorophyll molecule.
    [Abstract] [Full Text] [Related] [New Search]