HTHSCI 1I06 Lecture Notes - Lecture 5: Histidine Decarboxylase, Histamine Receptor, Aminoacyl-Trna
20 Mar 2019
School
Department
Course
Professor
Document Summary
Enzymes: the information for the synthesis of proteins is contained within our genes. Histamine receptor proteins: enzymes in the production/degradation of histamine are proteins, e. g. histidine decarboxylase is an enzymatic protein. Discovered by watson and crick : there are enzymes that can work backwards: reverse transcriptase (rna dna) The first step in gene expression involves in the copying a gene"s dna sequence to make an. Dna template to synthesize a complementary strand of rna: rna polymerase builds an rna strand in the 5" to 3" direction, adding each new nucleotide to the 3" end of the strand, initiation (start): Rna polymerase binds to a sequence of dna called the promoter, found near the beginning of a gene. Once bound, rna polymerase unwinds the helix providing the single stranded template needed for transcription. A region of the dna with high % of ta bases. The part of the gene that is transcribed into rna is called the transcription unit: elongation (strand):
