BIOC12H3 Lecture Notes - Lecture 3: Amine, Histidine, Lysine
Document Summary
Carboxyl group ph is approx low 2"s (with some exceptions) Lysine both have -oh groups in side chains, can be phosphorylated. Histidine is one of the few aa"s that loses the side chain proton before amino group proton. Most of the carboxyl group and amino group numbers are almost identical. 100-150 to calculate the approx. molecular weight of a protein! Likelihood we"re going to see a particular aa in a protein sequence. Difference between smallest and largest amino acid weight is relatively low. Semester: summer 2020: despite their being more than 200 amino acids in living organisms, only. 1 => glutamate is converted to gaba (neurotransmitter) in the brain and glutamate is itself also a neurotransmitter: ex. 2 => histamine (controls blood vessel constriction and hcl secretion) from histidine (think of antihistamines for allergies: amino acids are also often precursors of hormone (tryptophan especially)