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

Q: Which amino acid residue's backbone forms a hydrogen bond with the backbone of the fifth (5th)…

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

Q: Even peptides with large nonpolar regions may contain alpha helices stabilized by hydrogen bonding…

A: polypeptides form either alpha helical structure or beta sheets stabilized by hydrogen bond.

Q: The amino acid arginine has the following forms: H3Arg pK1=1.82 H2Arg* pK2=8.99 HArg pK3=12.1 Arg…

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

Q: Two peptide segments are shown below. Predict which one would have the most negative AG when going…

A: Protein folding is a spontaneous reaction by which most of the proteins fold inside the cell without…

Q: Which out of the following amino acids carries a net positive charge at the physilo PH: A) Non of…

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

Q: Which of the following polypeptides is most likely to form an d-helix? (a) CRAGNRKIVLETY (b)…

A: Hi! Thank you for posting the question on Bartleby. As per the guidelines we can answer only one…

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: . Vwhat do you think holds together the various secondary structural elements in a Stickular…

A: These questions are about interactions in amino acids.

Q: How long is a fully extended peptide chain that contains the same number of amino acids?(The…

A: Suppose a polypeptide is composed of 36 residues. The distance between two residues in fully…

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: Do all bonds in a peptide backbone have freedom of rotation

A: Bonds in a peptide backbone are formed by the interactions between unshared electrons of the amino…

Q: Part a) Draw the peptide C-H-A-R-G-E-D. What is its total charge at pH 7.   Part b) Draw the…

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

Q: List possible codon sequences for the following amino acids.(a) Val (b) Phe (c) Asn (d) Gly (e) Met

A: Amino acids are coded by trinucleotides sequence is known as the codon. The first two positions in…

Q: Which of the following peptides carries a net positive charge at pH = 6.0? O VISE O RDSQ O FLGP O…

A: Amino acids are the building blocks and have a common basic structure. There are 20 amino acids and…

Q: Given the sequences below select all that may have trouble becoming alpha helices. (Select all that…

A: It is the amino acid sequence of a peptide chain that determine which secondary structure the…

Q: 2. A protein has the amino acid sequence DSRLSKTMYSIEAPAKLDWEQNMAL How many peptide fragments would…

A: The proteases are responsible for the breakdown of protein into smaller fragments. Examples of…

Q: Given the polypeptide chain below: Alanine - Arginine - Valine - Histidine - Aspartic acid -…

A: Amino acids are organic molecules comprised of two functional groups that are an amino group and the…

Q: Classify the following functions or structures as being attributed to proteins, RNA, or RNA-protein…

A: A. Proteins -  Poly A polymerase Release factors (RF1 and RF2) Formation (catalysis) of peptide…

Q: Which of the following sequences is most likely to form an unstructured loop in a protein structure?…

A: Proteins are polymers of amino acid sequences. Therefore they are known as polypeptides. There are…

Q: Of the following amino acids, which 3 are most likely to be found on surface of a single protein.…

A: Proteins are the ultimate products of the genes. DNA is transcribed into m RNA and this is…

Q: Which of the following statements concerning the peptide NH3-Val-Ala-Gly-Lys-Leu-Gly-Val-Phe-…

A: The given peptide is as: NH4+-Val-Ala-Gly-Lys-Leu-Gly-Val-Phe-Tyr-Ile-COOH This polypeptide has 10…

Q: The sequence of a peptide is given below. Ala-gly-val-leu-trp-lys-ser-phe-arg-proWhich peptide…

A: Chymotrypsin belongs to a group of enzymes that all use a serine as an active site to cleave peptide…

Q: Consider a protein with the following amino acid sequence: -R-V-G-M-A-E-I-Q–V–L-K-F-V-I-H–L- Which…

A: The 2° (secondary) structure of the peptide chains can be determined using the Chou-Fasman algorithm…

Q: N-terminus

A: Amino Acid units that make up a protein molecule are joined together in a precise sequence. The…

Q: Indicate the level(s) of protein structure to which each of thefollowing contributes:a. amino acid…

A: Proteins are crucial for various processes in the body and for the proper maintenance of cells and…

Q: Changing one amino acid within a protein sequence from a tryptophan to a stop codon would be best…

A: Mutation is the change in the nucleotide sequence of the DNA that causes a change in the mRNA.…

Q: Which one of the following types of bond is principally responsible for holding the α-helix shape of…

A: There is a different shape of a protein in its secondary structure.

Q: Given the polypeptide chain below: Alanine - Arginine - Valine - Histidine - Aspartic acid -…

A: Amino acids are organic molecules comprised of two functional groups that are an amino group and the…

Q: Which of the following is the first step in folding a linear polypeptide into an ordered functional…

A: Proteins are the chains of amino acids connected by the amide linkage called "peptide linkage".…

Q: Which amino acids would be expected to produce a similar sickling effect if substituted for Val at…

A: The blood disease Sickle-cell anemia occurs due to a substitution mutation. The mutated form of…

Q: secondary structure? O -KPGHP- O-KRKKK- -YFVWT- O-MRLEK-

A: Beta sheets are secondary structures of a protein that are formed due to interchain hydrogen bonding…

Q: The bottom peptide segment is found in the secondary structure composed of anti-parallel - sheets.…

A:

Q: Which of the following polypeptide chains is most likely to form an alpha-helix? GPSTRD EMA…

A: The amino acids make up the protein structure. The linear arrangement of amino acids with the help…

Q: transmembrane portion of an alpha helix?

A: The alpha-helix is a coiled structure made up of proteins which consists of single chain of amino…

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…

Q: Name two(2) interactions that maintain tertiary protein structure.

A: The term tertiary structure refers to the unique three dimensional conformations that globular…

Q: Like a helices, B sheets often have one side facing the surface of the protein and one side facing…

A: Alpha-helices and beta-sheets are examples of protein secondary structures. Secondary structure…

Q: Which of the following peptides is more likely to take up an α-helical structure, and why?(a)…

A: (a) LKAENDEAARAMSEA- is the following peptides is more likely to take up an α-helical structure

Q: Draw out this peptide using condensed or line-bond structures: His-Thy-Phe-Cys-Glu examine your…

A: Given sequence,  His-Thy-Phe-Cys-Glu His - Histidine  Thr - Threonine Phe -Phenylalanine Cys -…

Q: Draw the bond-line structure of the given peptides. 1. Ser-Asp 2. Glu-Gln 3. Arg-His

A: Bond line structure of the amino acids reveals the covalent bonding, hydrogen bonding and peptide…

Q: Draw the structure of the first 3 nucleotides in the nucleic acid sequence   attaaaggtt tataccttcc…

A: Introduction: A nucleotide consists of a nitrogen base, a pentose sugar, and a phosphate group.

Q: Suggest which part of this sequence belongs to the inner part of the protein and which to the outer…

A: Proteins are polypeptides formed of monomeric units-amino acids. There are 20 different amino acids…

Q: Which one of the following peptides is more likely to aggregate in water solution ? TSCKSSTCCSSKTT…

A: Answer- option B.   GMPILAALGGGPML Isoleucine and phenylalanine amino acid is prese t i this which…

Q: Which of these peptides is the most hydrophobic?   A. KFYV   B. ERSC   C. PIMF

A: Proteins are modified polypeptide chains. These chains are made up of 10 or more amino acids linked…

Q: e primary structure of a protein is shown below. Please answer the following questions.…

A: The function of a protein is completely dependent on the amino acid composition because amino acids…

Q: Which of the following contribute to and/or describe protein secondary_structure? O All of the…

A: Secondary structure is defined by the regular, arrangements that recur in space of adjacent amino…

Q: Which of the following peptides will likely adopt an alpha helix? H-I-R-E-F  A-D-L-E-E  A-D-E-L-E…

A: The most common types of secondary structure are alpha-helix and beta-pleated sheets. The…

Q: Which amino acid sequence will form part of which protein structure, and why?   Sequence 1:…

A: Proteins are macromolecules made up of L-amino acids. They are presently more than any other major…

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.