Which of the following peptides is most likely to form an a-helix? ETAEKAFKQYANDN GLLKQSTQCLEVKT EREWSYTWCANCNE KKKSSSTTASDDEN

Q: Many of the loops on proteins are composed of hydrophilic amino acids. Why might this be the case?

A: Protein is one of the important biomolecules. This protein is made up of sequence amino acids which…

Q: Why is it important to identify the N-terminal residue(s) of a protein?

A: Protein is composed of a long chain of amino acids, which are joined by a peptide bond. These…

Q: the peptide (written N-terminal to C-terminal) represented by Ala-Ser-Ala-Tyr the same as the…

A: Ans. Yes, the polypeptide chain of amino acid will be Similarly in structure and function whether it…

Q: How do you think incorporating b-homoserine into a peptide would affect the structure and/or…

A: Homoserine, is the product of a cyanogen bromide cleavage of a peptide by degradation of methionine.…

Q: Write the structure of each of the following peptides. Start with the N-terminal and the COO- on the…

A: Peptides are the sequence of amino acids that are joined through formation of peptide bond. The…

Q: Peptide #1:  L-I-T-V Peptide #2:  C-Q-H-R Peptide #3:  E-G-E-A   Which peptide is the most basic?…

A: Amino acids are the building blocks of protein. An amino acid contains a carboxylic acid and a-amino…

Q: Which of the following sequences is most likely to form an a helix?

A: An alpha helix is a sort of secondary structure, which describes how a protein's main chain is…

Q: Which of the following polypeptides would be most likely to form an a helix? Explain your answer.…

A: A polypeptide chain folds into a protein in its native, three-dimensional form through a process…

Q: What is the difference between the alpha-helix and the beta-sheet protein conformations?

A: Protein refers to the biomolecule formed by the association of amino acids. They are also called…

Q: The domain of a protien is approximately 350 residues in length. what is length (in A°) of this…

A: Proteins or peptides are the linear chains of amino acid sequences attached via peptide bonds. The…

Q: How many ways can four different amino acids be arranged in a peptide so that each peptide is…

A: Amino acids are organic compounds that contain amine (-NH2) and carboxyl (-COOH) functional groups,…

Q: Given the polypeptide chain below: Ala-Arg-Val-His-Asp-Gln 1. What is the N-terminus? 2.What is…

A: The organic molecule is comprised of two functional groups that are an amino group and the carboxyl…

Q: Give the translation of the segment of a polypeptide chain below. Specify your template strand.…

A: Transcription is the process by which RNA polymerase read out DNA and make m-RNA then mRNA is…

Q: A peptide with 19 amino acid residues was digested with trypsin and generated the following…

A: The one letter code for different amino acids are :-  G - glycine I - isoleucine  R - arginine  S -…

Q: Why would the mutation Ile -> Asp be likely to destabilize a protein? Why would the mutation Ile…

A: Mutations in proteins' amino acid sequences can have an impact on their stability. Long sequences of…

Q: In the amino acid sequence below, the amino acid residue in red was shown to be essential to the…

A: Peptides or proteins are composed of twenty standard amino acids. These standard amino acids differ…

Q: Shown below is a portion of primary sequence of a very large protein.…

A: The protein's overall structure contains both alpha helices and beta sheets. The folding and…

Q: How many possible nucleotide sequences could code for a peptide with the sequence "MRRTGERS*"? (Note…

A: The given sequence is 'MRRTGERS*'. The amino acid sequence is…

Q: Draw a peptide bond between Phenylalanine (c-terminus) and Isoleucine (n-terminus).

A: Amino acids are organic compounds with two functional group namely carboxyl and amino. There are 20…

Q: Why do we not indicate the side chains of the amino acids that form the peptide bond (see Figure…

A: Peptide bond forms when two amino acids react with each other through their alpha-amino and…

Q: If a Cys residue in a protein was replaced with either Ser or Phe amino acid, which substitution…

A: Amino acids Proteins are the polymers of nitrogenous compounds called amino acids. Each amino acid…

Q: f an Arg residue in a protein was replaced with either Lys or Glu amino acid, which substitution…

A: Proteins are large biomolecules that compose structural and motor elements of a cell, and also as…

Q: Which of the following stretches of RNA is most likely to form a hairpin with 4 bases making up the…

A: A nucleotide (pentose sugar + nitrogenous base + phosphate group) is a phosphoric acid ester of a…

Q: Where would you expect a polypeptide region Ridge and the amino acid valine, leucine, and isoleucine…

A: Amino acids are the building blocks of life. Proteins are long chains of amino acids that make up…

Q: How do you think incorporating a-methylserine into a peptide would affect the structure and/or…

A: proteins are made up of amino acids . amino acid polarity and peptide struture depends upon the side…

Q: All 20 of the amino acids coded for by DNA are L configuration. With one exception, theyalso all…

A: The question is asking us to identify the one amino acid that has an R absolute configuration, while…

Q: What is a helix-turn-helix motif?   secondary structure in which an α helix is separated from a β…

A: Introduction Motifs are the super secondary structure formed by the combinations of secondary…

Q: What amino acid would a tRNA with anticodon CUA carry? Enter the 3 letter code only [A]. [e.g. Met…

A: tRNA stands for the transfer RNA and it has L- shaped structure . Transfer RNA acts as an adopter…

Q: What is the sequence of amino acids coded by the following sequence of nucleotides on a strand of…

A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…

Q: G Which of the following amino acids is most unlikely to be present in a beta sheet? Lysine Valine…

A: Proteins show two types of secondary structural elements. They are1) Alpha helix and2) Beta sheets .…

Q: Draw: Amino-terminus on the left, Carboxy-terminus on the right L-Ala (aka S-alanine) D-Ala (aka…

A: Alanine is an amino acid with molecular formula C3H7NO2. It has a methyl group as side chain.…

Q: Sickling occurs in deoxyhemoglobin S but not in oxyhemoglobin S. Oxyhemoglobin has a small,…

A: Sickling is the process where the haemoglobin protein inside the RBC cell clumps together this…

Nucleotides

It is an organic molecule made up of three basic components- a nitrogenous base, phosphate,and pentose sugar. The nucleotides are important for metabolic reactions andthe formation of DNA (deoxyribonucleic acid) and RNA (ribonucleic acid). 

Nucleic Acids

Nucleic acids are essential biomolecules present in prokaryotic and eukaryotic cells and viruses. They carry the genetic information for the synthesis of proteins and cellular replication. The nucleic acids are of two types: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). The structure of all proteins and ultimately every biomolecule and cellular component is a product of information encoded in the sequence of nucleic acids. Parts of a DNA molecule containing the information needed to synthesize a protein or an RNA are genes. Nucleic acids can store and transmit genetic information from one generation to the next, fundamental to any life form.