Proteins • Transcription and Translation • Making protein bracelets • Specific proteins – Myosin and Actin http://learn.genetics.utah.edu/content/begin/dna/transcribe/ Proteins • Primary Structure – Sequence of Amino Acids – Met-Gly-Ser-His-Ala- Leu-Trp-Ile-Thr • Secondary Structure – H bonding which permits folds, pleats, sheets • Tertiary Structure – Folding of the protein into its final 3-D form • Quaternary Structure – Proteins that have more than one subunit. Amino Acids • Amino acids combine to make proteins Drawing the amino acids Peptides and polypeptides • Glycine and alanine can combine together with the elimination of a molecule of water to produce a dipeptide. http://www.chemguide.co.uk/organicprops/aminoacids/proteinstruct.html Amino Acid Table Muscle Myosin PAGE Coomassie Stained Protein Gel