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Fig. 1-29 Inherited Disorders “Sporadic” Cancers Aging Cystic Fibrosis Cholera Cystic Fibrosis Muscular Dystrophy “Sporadic” Cancers Aging Alzheimer’s Disease I-Cell Disease Pg. 25 Lysosomal Storage diseases Drug Targets Membrane receptors Protein kinases Ion channels G proteins Protein “pumps” Bcl-2 Family proteins Microtubules Telomerase Translation components Transport vesicles tRNA synthetases Ribosomes Topoisomerases Pg. 10 100 µM Microscopy Light Microscopy Electron Microscopy Pg. 10 Light Microscopy Bright Field Phase-Contrast Differential Interference Contrast (DIC) Fluorescence Electron Microscopy (EM) Scanning EM Transmission EM Chemical Composition of Cells Pg. 58 Pg. 79 Chemical Bond Energies Gene Expression Monomer/Polymer Nitrogenous Bases of DNA and RNA Pg. 76 Pg. 175 5’ 3’ 3’ 5’ 0.34 nm Major Groove Minor Groove Pg. 171 Topoisomerase Treated DNA Topoisomerase Relieves Stress of Overwinding During DNA Replication Topoisomerase is an Anti-Cancer Drug Target Camptothecin Werner Syndrome 15 yrs. 48 yrs. Mutation in gene encoding RecQ helicase Human Karyotype 247 M bp 47 M bp Pg. 179 ~ 2 meters of DNA fits in the nucleus! Nucleus Nitrogenous Bases of DNA and RNA Pg. 76 RNA Molecules 5’ 3’ 5’ 3’ Types of RNA Molecules mRNA (gene expression) Transfer RNA (Translation) Ribosomal RNA (Translation) Small nuclear RNA (exon splicing) Micro RNA (Gene regulation) Small cytoplasmic RNA (protein transport) Ribozymes (numerous biochemical functions) Protein Functions Enzymes Membrane transport Intercellular transport Hormones Receptors Nanomachines Antibodies Toxins Fibers Bioluminescence/Fluorescence Pg. 74 Amino Acid Side Chains (Pgs. 74-75) Extra carbon atom! alpha-helix ß-Sheet Hydrophobic Interactions in Tertiary Structure Hydrogen Bonding in Tertiary Structure Representations of Protein Tertiary Structure Backbone Ribbon Pg. 132 Wire Frame Space Filling Quaternary Structure Pg. 141 Protein Domains (Src protein) Chloride Ion Channel Protein Comparison of Protein Primary Structure Cyclin-dependent Kinase Proteins (cytosol or ER membrane) Complexity of Human Gene Expression RNA Synthesis OH OH OH Pg. 202 (Modified for RNA synthesis) Pg. 233 1 µm Pg. 233 Exon/Intron Organization of Eukaryotic Genes Pg. 238 Sequence Structure of Introns Pg. 239 Alternative Splicing Pg. 241 5’ Guanine Cap Structure Pg. 237