Combine these amino acids into a tripeptide. Add or remove atoms and bonds as needed.

a. which amino acid can form a covalent bond with its side chain? b. which amino acid can contribute to protein tertiary and quarternary structure by forming a covalent bond?

Attach an amino acid monomer below. Name of the amino acid: Abbreviated name:  Letter symbol:

Your friend has discovered a protein that they suspect is glycosylated. They decide to perform a series of tests to determine the nature of the oligosaccharide. Assuming/Knowing the following: Fucose molecular weight is approximately 164 Galactose molecular weight is approximately 180 GalNAc molecular weight is approximately  221 Mannose molecular weight is approximately 180  Sialic Acid molecular weight is approximately 309 Neuraminidase cleaves before a Sialic Acid (Sialic Acid and anything after leaves the protein) Beta-galactosidase cleaves after a Galactose (Galactose and anything before remains on the protein) Peanut Agglutinin binds to GalNAc Concanavalin A binds to Mannose Hemagglutinin binds to Sialic Acid Based on preliminary results, they suspect that the oligosaccharide is 7 glycosides long and weighs a total of 1414 g/mol They carried out the following experiments: they treated the protein with either a glycosidase or a lectin, and then pelleted the protein using…

Rank these amino acids from most to least polar. Çoo çoo H,N- C-H HN- C-H CH2 CH2 CH2 CH CH, CH, H,N- C-H CH2OH 3

identify an amino acid that contains a side chain that can form hydrogen bonds with water (complete name)

I-D-E-L-Y-S-Q-V-C-S-H-L-D-T-V-R Circle the hydrophobic residues in the amino acid sequence above and box the hydrophobic residues.

Amino acids attached together in a straight line structure, is called: Primary structure Quaternary structure Secondary structure Tertiary structure

Show dipeptide with two of your amino acids bonded to each other. Draw the structure. The amino acid is Histidine

Identify an amino acid that complies with the following characteristic: (Write the COMPLETE name) Contains an amide side chain