Ribosome: Difference between revisions
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The large subunit of the prokaryotic ribosome sediments at 50S. It is composed of two chains of RNA, a 23S chain (~3000 bases long, 946 kDa) and a 5S chain (~120 bases long, 39 kDa). Assembled with the RNA are about 30 protein chains. The proteins in the first large subunit determined range from 6 kDa to 37 kDa. See also [[Large Ribosomal Subunit of Haloarcula]]. The large subunit contains several [[Kink-turn motif]]s. | The large subunit of the prokaryotic ribosome sediments at 50S. It is composed of two chains of RNA, a 23S chain (~3000 bases long, 946 kDa) and a 5S chain (~120 bases long, 39 kDa). Assembled with the RNA are about 30 protein chains. The proteins in the first large subunit determined range from 6 kDa to 37 kDa. See also [[Large Ribosomal Subunit of Haloarcula]]. The large subunit contains several [[Kink-turn motif]]s. | ||
The ''mitochindrial ribosome'' or '''mitoribosome''' is smaller than the the cytoplasmic ribosome with a small subunit which sediments at 28S and a large subunit which sediments at 39S. The whole mitoribosome sediments at 55S. | |||
Other macromolecules in a functioning ribosome include three transfer RNA molecules, messenger RNA, and the nascent protein chain. | Other macromolecules in a functioning ribosome include three transfer RNA molecules, messenger RNA, and the nascent protein chain. | ||
