Serine and threonine can both be directly deaminated during amino acid metabolism. What else do these two amino acids have in common? Both are achiral hydrophobic amino acids. Both can be phosphorylated or glycosylated. Both destabilize beta sheets if they are incorporated into the secondary structure. Both readily form covalent disulfide bonds to stabilize a protein's tertiary structure.

Q: Why is the ionic bond between, say, the side chain of lysine and the side chain of glutamic acid…

A: Amino acids are the molecules that join to form a protein structure. The bond formed between two…

Q: Classify each peptide chain as part of a parallel β sheet, part of an antiparallel β sheet, either…

A: Beta-sheets are one of the most common secondary structures seen within proteins. Several…

Q: The diversity of functional groups on sugars that can form glycosidic bonds greatly increases the…

A: Amino acids are the organic acids that contain alpha carboxyl group, alpha amino group, hydrogen…

Q: Which of the following statements best describes the hydrophobic character of bacteriorhodopsin…

A: Bacteriorhodopsin is a light-driven proton pump that is embedded in the cell membrane. This allows…

Q: Polypeptide Handout Amino acids are linked together to form a peptide bond through an aminidation…

A: When two or more amino acids are linked together by peptide bond then a polypeptide is…

Q: ______ 1. is a serine protease that cuts the peptide after aromatic amino acids ______ 2. is a type…

A: 1. Chymotrypsin is a serine protease that cuts the peptide after aromatic amino acids. 2. Covalent…

Q: In what type of intra and intermolecular interactions does a valine within a protein backbone…

A: Valine is an α-amino acid containing an α-amino group, an α-carboxylic acid group, and a side chain…

Q: It is maintained by a bond with resonance structures. It will be disrupted by extreme pH conditions.…

A: A protein's biological function depends on its three-dimensional structure. The 3D structure is…

Q: How do the following interactions help to stabilize the tertiary and quaternary structure of a…

A: Tertiary structure refers the three dimensional conformation of a protein  assumes due to the…

Q: Imagine the main chain of a protein bends back on itself, so that two amino acid residues R, and R,…

A: Salt bridge is a bond between amino acids which carry opposite charges. The opposite charges exert…

Q: Are the amino acid residues at the active site need to be in close proximity to one another…

A: Enzymes are the catalysts that catalyze biochemical reactions. These are proteinaceous in nature as…

Q: The tertiary structure of a protein is maintained by interactions between the side chains of amino…

A: Proteins are composed of amino acids, which are bound together by peptide linkage. Amino acids…

Q: which two amino acid have two chiral center？ I know Isoleucine contain two chiral center，how about…

A: Proteins are composed of amino acids. They are linked together by peptide linkages. Proteins have…

Q: Which statement best describes the protein structure shown below?

A: Proteins are a type of biomolecules that are made up of amino acids. They perform variety of…

Q: urrently, aspartic acid is forming an ionic interaction with arginine in a protein. Part a) If…

A: Proteins are the macromolecules composed of amino acids. The amino acids differ in their physical…

Q: What type of interaction, if any, would you predict between the side groups of the following pairs…

A: Amino acids are structural units of proteins. Amino acids join together through peptide bond to form…

Q: Protein folding is critical for function because the properties of a protein arise from its overall…

A: Introduction  A protein can carry out a variety of functions in our cells depending to its…

Q: Lactose is the sugar component of milk, which is why it is referred to as "milk sugar." It is…

A: Carbohydrates are the most essential biomolecule and the primary source of energy in many organisms.…

Q: What do most amino acids have in common with most monosaccharides? O Both contain ionizable groups…

A: Amino acids are the building blocks of proteins. There are 20 major proteogenic amino acids that…

Q: Polypeptide glutamine residues may be deamidated (the amide group is replaced by a carboxylate…

A: A mechanism known as deamination is used to convert glutamine into glutamic acid in the body. Such…

Q: People with celiac disease cannot metabolize gluten, but have no trouble with foods high in the…

A: Natural amino acid  Natural amino acid are those amino acids which are found in nature. There are…

Q: Within a polypeptide chain is the following amino acid sequence, which reads in the N terminus to C…

A: Proteins are heteropolymer that are made up of different aminoacids.   These amino acids joined…

Q: Can the same pepptide be used in multiple different proteins? yes or no, explain.

A: Proteins are one of the essential biomolecules necessary for biological cells…

Q: Name the two different glycosidic linkages.  Are these the same linkages as those found in glycogen?

A: Hyaluronic acid is a non- sulfated glucosaminoglycan (GAG).

Q: Use the one letter code to give the sequence of this peptide

A: A polypeptide is a chain structure, which is comprised of several amino acids. All these amino acids…

Q: Assuming the oligopeptide ALPHAHELICKS forms one continuous α helix, the carbonyl oxygen of the…

A: Alpha-Helix is a type of secondary structure commonly found in proteins. Proteins are composed of…

Q: Which of the following statement is not true?     In a secondary structure the consecutive…

A: The secondary structure of a protein refers to the spatial arrangement of the main chain atoms of…