This is Fos-Jun dimer (1FOS). Is the leucine zipper at the C-terminus or at the N-terminus of the helices? Are the helices parallel or antiparallel?

Q: B14. The last two amino acids added to a polypeptide are - Trp - Glu - (C terminus). The last two…

A: To determine the last two anticodons used in the translation of the given polypeptide sequence, we…

Q: peptide bond formation is catalizyed at the larger ribosomal subunit. does this happend in…

A: Translation includes three phases: initiation, elongation, and termination. Initiation is a phase in…

Q: (b) r , The following polypeptide sequence has three alpha helices and two B turns. Based on what we…

A: An amino group and an acid group-containing organic molecules are called Amino acids.…

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: Isoleucine is encoded by three codons (5')AUU, (5')AUC, and (5')AUA. These three codons are…

A: Wobble hypothesis: This hypothesis was given by Francis Crick. According to this hypothesis the…

Q: Which amino acid residue is preferred at which position in the following peptide for cleavage by…

A: While writing a polypeptide, the left side is the N terminus and the right side is the C terminus.

Q: SYNZIPS are a-helices that can be used in synthetic biology to create coiled-coil interactions…

A: Secondary structure of protein describes the special arrangement of its main chain atoms, without…

Q: Describe the general structure of a type 2 alpha helix protein. Explain how type 2 alpha helix…

A: The - (alpha) helix and the - (beta) sheet are the two most prevalent secondary structures…

Q: Disulfide bonds have been shown to stabilize proteins (i.e., make them less likely to unfold).…

A: Disulfide bonds are considered the covalent bond, which is formed between the two cysteine residues.…

Q: What do you mean by myristylated N-terminus?

A: N-myristoylation is the process in which myristic acid is attached to N-terminal glycine. It occurs…

Q: Consider the following in light of the concept of levels of structure (primary, secondary, tertiary,…

A: In double stranded DNA structure two strands run in anti-parallel directions through base pairing…

Q: Since among the 64 codons of mRNA 61 codify amino acids that form polypeptide chains what are the…

A: From the above given question we have to show what are the three functions of remaining codons as…

Q: On average, how many phosphoanhydride bonds (P;-P; bonds) are directly hydrolyzed in the course of…

A: As per the central dogma of molecular biology, genetic information is stored in the DNA. The genetic…

Q: Give two reasons to explain why a proline residue in the middle of an a helix is predicted to be…

A: Proline either breaks or kinks a helix.

Q: Which form of flavin adenine dinucleotide is the "reduced" form, FAD or FADH2? Explain

A: Flavin Adenine Dinucleotide: It is a redox active coenzyme associated with various proteins, which…

Q: Consider the hypothetical serine protease in the image, which shows the specificity pockets. The S1…

A: Serine proteases are proteolytic enzymes that cleave peptide bonds. They are hydrolases that use a…

Q: What is the difference between a simple and conjugated protein? Why is gelatin classified as a…

A: Proteins are large molecules made up of amino acid residues linked via a peptide bond. Amino Acids…

Q: For each polypeptide derived in the following sequences: 5' CAA GAG GUA UCC UAC AGA 3' 5' GUC AUC…

A: Polypeptides are composed of amino acids linked to each other via  peptide bonds. The peptide bond…

Q: How many different polypeptides would you expect to see synthesized by an in vitro translation…

A: The mRNA is a sequence of ribonucleotides that contains three possible reading frames. Only one…

Q: The following are sequences from three different alpha helices found in human proteins:…

A: The proteins are constituted of twenty naturally occurring amino acids connected via peptide…

Q: Consider a short peptide that forms an alpha-helix within a larger protein structure. Suppose that…

A: Amino acids are the simplest units to form peptides and proteins. The amino acid sequences represent…

Q: Why does a folded mutant protein aggregate rather than remain a misfolded monomer?

A: Proteins are essential molecules in biological systems, and their proper folding is crucial for…

Q: The free energy of binding of codon on mRNA and anticodon on tRNA is -9 kT. What is the probability…

A: In thermodynamics, free energy is the function of internal energy, entropy, and enthalpy. The…

Q: Explain why a 50S ribosomal subunit and a 30S ribosomal subunit combine to form a 70S subunit,…

A: Ribonucleoproteins form the basic unit of ribosomes and they are a complex of RNA and proteins. They…

Q: What RNA base sequence is complimentary to the following DNA base sequence 5'-CATGATTAT-3'? Using…

A: Gene expression is the process through which the genetic codes of a gene, the nucleotide sequence,…

Q: What are the FOUR(4) distinct steps of translation elongation cycle for a growing polypeptide chain?

A: The translation is the process of protein synthesis from the genetic codon present in the mRNA. This…

Q: In the protein adenylate kinase, the C-terminal region has the sequence Val-Asp-Asp-Val-Phe-…

A: A helical wheel representation is a type of plot or visual representation used to illustrate the…

Q: Identify the primary sequence for the polypeptide that yields these fragments upon treatment:…

A: Proteins are the macromolecules composed of amino acids bound together by peptide bond between amino…

Q: To visualize the spatial arrangement of amino acid residues in an a-helix, it is helpful to imagine…

A: Alpha helix is a secondary structure of protein. The alpha-helix can be right-handed or left-handed.…

Q: Assume that the translational error frequency, δ, is 1 x 10–4.(a) Calculate the probability of…

A: mRNAs are used to form protein by translation. The translation is performed using ribosomes, t-RNA…

Q: Erk and P-Erk live in two different locations within the cell even though they are just two…

A: * Mitogen activated protein kinase also called as  MAPK and  p42MAPK, and ERK2 * It is an enzyme…

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: Why is the euchromatic region or light bands in G banding rich in Guanine and cytosine? And why is…

A: euchromatic region or light bands in G banding rich in G C while dark region rich in AT.

Q: A) Based on the mRNA sequence below, provide the corresponding DNA template (5'-3') and protein…

A: DNA is the genetic material in humans. It carries information that is transferred from one…

Q: A recent genome sequencing project for the bacterium Burkholderia mallei has identified a new…

A: The new protein identified here has a partial sequence given as TVEVNAPGDVQKALSELQQINDGRLDIRI…

Q: Assume that the translational error frequency, 8, is 1 × 10-4. (a) Calculate the probability of…

A: The translation is the process of making a polypeptide chain from mRNA. The translation is catalyzed…

Q: draw the structure of the tripeptife Pro-Ser-Cys as it would appear at physiological PH with its…

A: Amino acids can be polymerized to form chains. Peptide bond formation is a condensation reaction in…

Q: A particular amino acid contains a -CH2NH3+ group.  Is this amino acid more likely to be found on…

A: In a folded globular protein charged and polar amino acids on the surface of the protein are…

Q: what are the first 4 amino acids in the polypeptide sequence of SARS-CoV-2 surface glycoprotein

A: The coronavirus disease caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)…