BIOL 1081 Lecture Notes - Lecture 7: Peptide, Bioinformatics, Quaternary
Document Summary
Proteins, genomics, and proteomics reading: sections 5. 4 & 5. 6 in textbook: identify and draw the basic structure that all amino acids share. Nonpolar and neutral- uncharged hydrocarbon groups or benzene rings as side chains are nonpolar; neutral side chains exhibit neither acidic nor basic qualities (alanine, glycine, isoleucine, leucine, methionine, phenylalanine, and valine) Polar and neutral- have side chains with either a net positive or a net negative charge (serine, threonine and tyrosine, asparagine, cysteine, glutamine and tryptophan) Polar and acidic- all amino acids have acid-base properties, because they each contain an acidic carboxyl group and a basic amino group. These groups neutralize each other, leaving the side chain to determine whether an amino acid is ultimately acidic or basic. Acidic amino acids contain a side chain that functions as an acid and is capable of becoming ionized by donating a hydrogen atom to the surrounding environment (aspartic acid and glutamic acid)
