The chlorophyll-protein complexes of Prochloron sp. (Prochlorophyta)

Roger G. Hiller*, A. W D Larkum

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)

Abstract

Chlorophyll-protein complexes have been isolated from Prochloron sp. by SDS-polyacrylamide gel electrophoresis and SDS-sucrose-gradient centrifugation. Complexes associated with Photosystem I have significant amounts of chlorophyll b and a principle polypeptide of 70 kDa. The largest Photosystem I complex had an Mr of more than 300 000 kDa, a chlorophyll a b ratio of 3.8 and a chlorophyll/P-700 ratio of approx. 100. Complexes enriched in chlorophyll b showed reduced electrophoretic mobility compared to spinach LHCP3, a higher Chl a b ratio (approx. 2.4) and had a principle polypeptide of 34 kDa. Neither the 34 kDa or any other polypeptide showed cross-reactivity with antibodies to spinach light-harvesting chlorophyll a b protein in a Western blot test.

Original languageEnglish
Pages (from-to)107-115
Number of pages9
JournalBBA - Bioenergetics
Volume806
Issue number1
DOIs
Publication statusPublished - 23 Jan 1985

Keywords

  • (Prochloron, Prochlorophyta)
  • Chlorophyll b
  • Chlorophyll-protein complex
  • Light-harvesting complex
  • P-700
  • Photosystem I

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