MICB 201 Lecture Notes - Lecture 3: Start Codon, Membrane Transport Protein, Mhc Class I Polypeptide-Related Sequence B
Document Summary
Chapter 3 - genomes, genomics and gene expression. Proteins possessed by an organism in any given time is reflected by the phenotype. Proteins can be grouped into functional categories: Sensing/signaling sense (bind to) chemicals in environment and. Bind to dna and affect what proteins are made. Membrane proteins that transport stuff in/out of cell transmit signals to cell. Genotype = a particular set of genes in an organism"s genome. Gene = segment of dna specifying aa sequence of a protein or nucleotide sequence of a stable rna molecule (rrna or trna) Proteome = all different proteins which can be synthesized by organism. Genome = all of an organism"s genetic material. For eukaryotes dna in chromosomes + organelles. For prokaryotes dna in chromosomes + plasmids and prophage (if present) Prokaryotic genes = specified by three-letter designation followed by a capital letter (all italicized/underlined), eg. rpsl / rpsl. Related genes often have same three-letter designation but diff.
