BIOLOGY 1A03 Lecture Notes - Lecture 3: Nuclear Pore, Nuclear Membrane, Globular Protein

• School: McMaster University
• Department: Biology
• Course: BIOLOGY 1A03
• Professor: Colin Gilmour

Document Summary

Actin and myosin filaments in contractile bundles. Structures for transmembrane transport and moving the cell. Proteins in the cytoplasm are used for cell to cell interactions and responses. In mitochondria, release of stored energy from carbohydrates. Tata-box binding protein interacts with dna because of structural groove. Porin proteins used to transport water across membrane because of hydrophilic pore. Soluble cellular proteins have globular shapes (hydrophobic interior and hydrophilic exterior) Actual relative size and location of each atom. Broader line means reiterated structure (alpha helix) Genetic information (dna) codes for proteins: transcribe rna (template, translate rna into proteins by ribosomes (prokaryotes) Eukaryotes: rna transcript processed by mrna then translated into proteins at the cytoplasm by ribosomes. Code for a protein sequence is in the nucleus. Nucleus double membrane-bound domain containing the chromosomes (pack and control dna); it separates nuclear contents from cytoplasm. Nucleolus within the nucleus and rna is transcribed here. Information in a gene is transcribed into messenger rna.