Mitochondrial & Chloroplast Genes & Genesis

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Presentation transcript:

Mitochondrial & Chloroplast Genes & Genesis Lecture 23 BSCI 420/421 Oct 25. 2002

Mitochondria & Chloroplasts are semi-autonomous, energy (ATP) producing organelles. They each have their own genomes But depend on the nucleus for most of their proteins.

Summary of Mitoch. Energy generation

ATP synthase can convert proton electrochemical gradients Into ATP bond energy or vise versa

ATP Synthase Fo

Genesis of mitochondria and chloroplasts Requires targeting of nuclear proteins to each of the Compartments of these organelles.

Mit. Import signal Polar (+) and Protein Transporters of the Mit. non-polar striped membranes alpha-helix

The human mitochondrial genome

The chloroplast genome Of a liverwort