Plastid proteases

Research output: Chapter in Book/Report/Conference proceedingChapter


Plastids form a major proteinaceous compartment in plant and algal cells. For example, chloroplasts contain 2000 to 2500 proteins [1] and account for 75% to 80% of the total nitrogen in a leaf [2]. Also, the dry weight of a chloroplast is 50% to 60% protein [3]. It is well known that the concentrations of apparently all proteins in plant cells result from both synthesis and degradation of the individual proteins [4]. Thus, plastid proteins, like those in other compartments of eukaryotic cells, are continually synthesized and subsequently degraded by a variety of proteases. Also, many plastid proteins are first synthesized as precursor molecules that are then processed to mature forms by proteases in the organelle (e.g., Ref. [5]).

Original languageEnglish (US)
Title of host publicationHandbook of Photosynthesis, Second Edition
PublisherCRC Press
Number of pages12
ISBN (Electronic)9781420027877
ISBN (Print)9780824758394
StatePublished - Jan 1 2005

ASJC Scopus subject areas

  • General Agricultural and Biological Sciences
  • General Engineering
  • General Chemistry


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