Article
Three semidominant barley mutants with single amino acid substitutions in the smallest magnesium chelatase subunit form defective AAA+ hexamers.
Proceedings of the National Academy of Sciences of the United States of America - 15 Oct 2002
Hansson A, Willows R D, Roberts T H, Hansson M
Abstract excerpt
Many enzymes of the bacteriochlorophyll and chlorophyll biosynthesis pathways have been conserved throughout evolution, but the molecular mechanisms of the key steps remain unclear. The magnesium chelatase reaction is one of these steps, and it requires the proteins BchI, BchD, and BchH to catalyze the insertion of Mg(2+) into protoporphyrin IX upon ATP hydrolysis. Structural analyses have shown that BchI forms...
Read the complete abstract on PubMedTopics
Share this publication in a Topic to start or enrich a Post.