BIO SCI 93 Lecture Notes - Lecture 3: Disulfide, Carboxylic Acid, Amine

• School: UC-Irvine
• Department: Biological Sciences
• Course: BIO SCI 93
• Professor: Jorge Busciglio Kim Green Marcelo A Wood

Document Summary

Carbon, carbohydrates, and lipids/proteins and nucleic acids- lecture (pgs. Organic molecules consisting of only hydrogen and carbon. Varied arrangement of a compound"s molecular skeleton affects its physical and chemical characteristics!! Chemical reactions directly involved in chemical reactions. Location, type, and number determine functional properties. Forms hydrogen bonds which help to dissolve organic compounds. *can be combined with an amino group to form an amino acid! *can be combined with a carboxyl group to form an amino acid! Long, chain like molecule of smaller molecules linked by covalent bonds. Nucleic acids (phosphodiester linkage- backbone) (hydrogen bonds- b/w bases) Linear chain of amino acids (20 existing amino acids placed in a sequenced chain connected by covalent peptide bonds) Stabilized h bonds b/w atoms of polypeptide backbone. Weak bonds in protein destroyed and protein unravels (becomes inactive) Delivered to proteasome where it is chopped up into short peptides for reuse. *abnormal proteasomal degradation associated with cancer, cystic fibrosis, neurodegenerative diseases, etc.