MCB 150 Lecture Notes - Lecture 20: Transfer Rna, Leucine, Prokaryote

• School: University of Illinois
• Department: Molecular and Cell Biology
• Course: MCB 150
• Professor: B Mehrtens

Document Summary

The nuclear envelope, nuclear lamina, and nuclear pore complexes. Ribosome attach to the outermembrane electron micrograph ribosomes not found in the nucleus on the outer membrane. Ribosomal subunit produced and export out of cytoplasm lamins rope like protein. Point of attachment give nuclear its shape each have a diameter smaller than a microtubule and larger than. Exposed area behind the ropes polar head groups of the phospholipids in one leaflet of the inner membrane of the nuclear envelope see way out through the holes. High-resolution electron micrograph of an artificial preparation of nuclear pore complexes: Eight repeating units around a circle with a channel that goes through the middle. Mechanism for the transport of materials from one side of the nuclear envelope to the other. Has a channel in the middle of it ring structure @ cytoplasmic side and nuclear side has 8-fold symmetry protein complexes.