منابع مشابه
Maintaining ancient organelles: mitochondrial biogenesis and maturation.
The ultrastructure of the cardiac myocyte is remarkable for the high density of mitochondria tightly packed between sarcomeres. This structural organization is designed to provide energy in the form of ATP to fuel normal pump function of the heart. A complex system comprised of regulatory factors and energy metabolic machinery, encoded by both mitochondrial and nuclear genomes, is required for ...
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The acquisitions of mitochondria and plastids were important events in the evolution of the eukaryotic cell, supplying it with compartmentalized bioenergetic and biosynthetic factories. Ancient invasions by eubacteria through symbiosis more than a billion years ago initiated these processes. Advances in geochemistry, molecular phylogeny, and cell biology have offered insight into complex molecu...
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Mitochondria and chloroplasts originated via two independent endosymbiotic events from prokaryotes related to today’s a-proteobacteria and photosynthetic cyanobacteria, respectively. During the transformation of once free-living organisms into interdependent cell organelles, a number of decisive steps ensured integration of the organelles into the metabolic circuits and signaling networks of th...
متن کاملDroplet organelles?
Cells contain numerous, molecularly distinct cellular compartments that are not enclosed by lipid bilayers. These compartments are implicated in a wide range of cellular activities, and they have been variously described as bodies, granules, or organelles. Recent evidence suggests that a liquid-liquid phase separation (LLPS) process may drive their formation, possibly justifying the unifying te...
متن کاملExocyst-Positive Organelles and Autophagosomes Are Distinct Organelles in Plants.
Autophagosomes are organelles that deliver cytosolic proteins for degradation in the vacuole of the cell. In contrast, exocyst-positive organelles (EXPO) deliver cytosolic proteins to the cell surface and therefore represent a form of unconventional protein secretion. Because both structures have two boundary membranes, it has been suggested that they may have been falsely treated as separate e...
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ژورنال
عنوان ژورنال: Circulation Research
سال: 2015
ISSN: 0009-7330,1524-4571
DOI: 10.1161/circresaha.116.305420