Which of the following amino acids can form 2 H-bonds within an alpha helix?

Q: Establish a correspondence between the items indicated by a number and a letter: features of…

A: Enzymes are biochemical catalysts that play a major role in speeding up a biochemical reaction…

Q: In an alpha helix, the carbonyl oxygen of residuen is hydrogen bonded to the amide proton of residue…

A: In alpha helix the carbonyl oxygen of residue there is one hydrogen bonds between the oxygen bonded…

Q: Describe the properties of the principal types of secondary structure, including the α helix, the β…

A: The alpha helix is a common motif in the secondary structure of proteins and is a right hand-helix…

Q: If the polypeptide chain DFRYHWSA were in an alpha helix, then the alpha amino group of amino acid S…

A: A hydrogen bond is considered as one of the hydrophobic interactions, which plays important role in…

Q: How many different tetrapeptides can form from four different amino acids?

A: Number of arrangements selecting 'n' items form a distinct items at a time = n!

Q: Which kinds of interactions can be seen in the tertiary structure of proteins?

A: The determination of biological function of a protein lies in its conformation or 3D structure.…

Q: Proline is sometimes found as one of the first four residues of an alpha helix. Proline is less…

A: Proline is one of the 20 standard amino acids which has an amino group (NH2), a carboxyl group…

Q: Lamin polypeptides (nuclear lamina) form dimers in which the central α-helical regions of two…

A: The nuclear lamina, a network of intermediate filaments lining the inner surface of the nuclear…

Q: How is the primary structure of a polypeptide chain is determined?

A: Polypeptide chains are form by the chain of amino acids

Q: Is it expected that a change in the primary, in the secondary or in the tertiary structure of a…

A: The primary level of protein structure determines the sequence of amino acids in the polypeptide…

Q: What is the difference between a phosphoester bondand a phosphodiester linkage?

A: The smallest particle of matter is called an atom. It is the very basic structural unit of any…

Q: The peptide segment shown below is part of a right-handed alpha helix. Please indicate the…

A: Alpha helixes are regular secondary structures. The hydrogen bonding pattern of an alpha helix is,…

Q: A) Draw the structure and give the name of a nucleotide made of G + ribose. B) Write the…

A: Ribonucleic acid (RNA) is a polymer of ribonucleotides that participate in diverse biological roles…

Q: Explain how a polypeptide is constructed from aminoacids.

A: Formation of protien from amino acid is done by the proces translation. Each amino acid binds with…

Q: Consider the sequences (i-iv) that represent sections of a protein. i) -AEEAAAAMAAAAMAAY ii)…

A: Secondary structure is the formation of regular patterns through interaction between nearby…

Q: Draw out the structural formula of the oligopeptide, with the first amino acid as the N-terminus

A: Amine and carboxylic acid groups in amino acids are joined together, and forms chains of amino acids…

Q: is Tertiary protein structure come from secondary structure？How are they related？（do we need to…

A: Proteins are biomolecules that are made up of amino acids connected to each other via peptide bonds…

Q: Draw the complete and the skeletal structure of a short polystyrene strand that contains 5 monomeric…

A: The polymer consists of small subunits which are repeated together to form a large molecule.…

Q: An π helix can be described as a 4.4 helix. Explain 16 what this designation means. Given the pitch…

A: ●A π helix is a type of secondary structure found in proteins.The amino acids in a standard π-helix…

Q: -Explain the a-helix and B-sheet structure of polypeptides.

A: Proteins are an important class of biomacromolecule. Proteins are made up of monomeric units called…

Q: Helices can be described by the notation nm,where n is the number of residues per helical turn and m…

A: Proteins are a type of macromolecule that have a variety of roles in biological processes. It is…

Q: what is a peptide bond? what characteristic of nucleic acids makes them important in determining…

A: A biomolecule, sometimes known as a biological molecule, is any of the various compounds created by…

Q: Each amino acid in a run of several amino acid residues of a polypeptide chain have phi values of…

A: Ramachandran plot gives the statistical distribution of the combinations of the dihedral angles ϕ…

Q: Which amino acids would you expect to find marked on the alpha helix? Alanine Isoleucine Leucine…

A: A prevalent motif in the secondary structure of proteins, the alpha helix (-helix) is a right-hand…

Q: How is such a regular structure able to accommodate an arbitrary sequence of bases, given the…

A: The regular structure of DNA is double helix. it accommodates an arbitrary sequence of bases when…

Q: Do the –H groups bound to the central carbons participate in the peptide bond?

A: A peptide is a short chain made up of amino acid, many peptides come together to form a protein. A…

Q: Draw the structure of an α-helix (polypeptide backbone only, no side chains) as accurately as…

A: α-helix is the secondary structure of the proteins in which H-bonding play the predominant role.…

Q: What are nucleic acids? Why are they important

A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…

Q: Would the presence of a chiral center in an amino acid side chain affect the formation of a peptide…

A: The carboxylic group and amino group of amino acids are not directly bonded to any of the atoms of…

Q: glutamic acid were replaced by proline in a protein

A: Glutamic acid is a hydrophilic amino acid whereas proline is hydrophobic.  The polar acid R group of…

Q: Within a naturally-occurring polypeptide, under neutral pH conditions (pH = 7.0), which of the…

A: According to central dogma, the final synthesis in the body is from the RNA to protein. As the…

Q: 2.2 9.2 Serine Threonine 2.1 9.1 1.9 10.7 8.4 Cysteine Methionine 2.1 9.3 8.7 Asparagine Glutamine…

A: In the polypeptide chain, the amino acids are joined by peptide bonds. The amino acid side chain is…

Q: What does this statement mean: "Upon folding of a protein many main chain amides replace their…

A: Polypeptide chains are composed of amino acids bonded to each other via peptide bonds. Peptide bonds…

Q: List some of the possible combinations of α-helices and βsheets in supersecondary structures.

A: The helix and the pleated sheet are the two most important secondary structures. Hydrogen bonds…

Q: If the polypeptide chain GHREAQNF were in an alpha helix, then the alpha am group of amino acid N…

A: The alpha helix of a protein structure is a type of regular secondary structure where successive…