What structural problems do cross-links "solve" in small domains like the zinc finger and disulfide-containing toxins?

Q: Why is R-banding significant when its banding pattern is just the reverse pattern of G-banding?

A: Banding technique: the given banding technique is of chromosome banding techniques i.e. G-banding,…

Q: What are hydrophobic interactions? What are two ways that hydrophobic interactions might impact…

A: Introduction: Large macromolecules known as proteins are composed of lengthy chains of amino acids.…

Q: How Do Polypeptides Fold into Three-DimensionalProtein Structures?

A: Proteins are composed of a long-chain of the polypeptide, which comprises of amino acid sequence…

Q: 1.) What do the first four letters represent in the polypeptide sequence of SARS-CoV-2 surface…

A: Since you have posted multiple questions, we will answer the first one for you. If you want a…

Q: What are the form or style of Covid-19?

A: Covid-19 is one of the deadly viruses that have affected the whole world since 2019. It is important…

Q: As an example, consider albumin, a protein made of a single polypeptide weighing 66,000 daltons (66…

A: Gel electrophoresis if the technique of separation of molecules on the basis of their size and…

Q: 1) A ligand-binding protein showing negative homotropic cooperativity? a) should give an nH value…

A: Cooperativity or cooperative binding occurs when binding of one molecule influences the affinity of…

Q: In the deoxy state of HB, which of the following does not occur? a) An inter-chain salt bridge…

A: Because hydrogen bonds and salt bridges, or ion-pair bonds, stabilize the deoxygenated form of…

Q: So which form of the arginine side chain is the ionized form? And when the side chain is ionized the…

A: Arginine is an amino acid with a side chain that contains a guanidine group. In its conjugate acid…

Q: Digestion of a peptide with trypsin generates two smaller peptide products: methionine-glycine and…

A: pepsin is a serine protease that cleaves the bond present in the C-terminal of amino acids Lysine…

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 following statement is TRUE concerning motifs and domains? a) Both motifs and domains are…

A: The proteins are folded into their three dimensional structure in order to gain biological function.…

Q: In terms of secondary structures, where is the amino acid at position 368 (TYR) located?

A: IntroductionTyrosine is an aromatic of amino acid that is both essential and non-essential. It is…

Q: 7) The figure below shows a B-barrel protein embedded in a hydrophobic membrane. The central cavity…

A: Beta barrels are known to be embedded in the membrane for various functions like transport of cargo.…

Q: What Architectural Arrangements Characterize ProteinStructure?

A: Proteins are considered as one of the important biological molecules, which helps to provide several…

Q: What is basic polymerstructure of pectin? Why is pectin highly soluble? What are the 2 physical…

A: Carbohydrates are complex biomolecules that are mostly made up of carbon, hydrogen, and oxygen…

Q: What are the essential structural features of a leucine zipper coiled-coil? Can you address primary,…

A: Leucine is a necessary amino acid for the synthesis of protein. Leucine is a non-polar aliphatic…

Q: Below is a picture of a molecule called StemRegenin-1 (SR-1) interacting with a polypeptide at…

A: Proteins fold to form tertiary structures. The purpose of protein folding is to keep the hydrophobic…

Q: what is peptide linkage?how is tripepide formed ?

A: Proteins are the building blocks of the body. They are organic molecules composed of amino acids.…

Q: Which of the following sequences in the coding strand of the DNA could code for this peptide? Select…

A: Amino acids are coded by codons (trinucleotide sequences of DNA or RNA). Specific codons code for…

Q: What are the types of side- interaxtions between R- that form different classes of protein chains?

A: The 20 amino acids found in proteins serve as the "R" groups' building blocks. The "R" groups are…

Q: A heptapeptide that puncture the bacterial cell wall has just been recently isolated from the venom…

A: The given flowchart describes the various chemicals that the heptapeptide has been treated with and…

Q: A seven-residue peptide was found to have an amino acid composition including glu, val, Lys, met,…

A: phenyl thiohydantoin (PTH)- amino acid derivative  The sequence of amino acid for heptapeptide…

Q: The helix, Tyr-Arg-Glu-Leu-Val-Asp-Ala-Ile-Leu-Arg-Glu-Val-Phe-Thr-Lys-Arg-Gly, is present in the…

A: Voltage gated sodium channels are present in neuron membrane .They open when there is enough voltage…

Q: An oligopeptide has the following amino acid sequence:…

A: Amino acids are the monomeric unit to form polypeptides. There are 20 different amino acids that…

Q: determine the structure of p2 spike. is it primary, secondary, tertiary, or quaternary?

A: Approach to solving the question:Read and understand the question.Analyze the image.Research the…

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: . It has been postulated that the normal (noninfectious) form of prion differs from the infectious…

A: Prions are the misfolded proteins. They can alter the structure of other protein. In cells, they…

Q: You could use absorbance at 280nm or colorimetric assays like the Bradford assay or bicinchoninic…

A: There are different methods present to measure the concentration of a given protein.

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 do x-helices and B-sheets have in common?

A: Alpha helix and beta sheets are two types of secondary structure present in the protein structure.…

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 is the difference between an autonomous and a nonautonomoustransposable element? Is it possible…

A: Transposable elements (TEs) are the sequences of DNA (Deoxyribonucleic acid)  that can move from a…

Q: How many amino acids long is a zinc finger domain? What four conserved residues are contained in the…

A: Zinc finger are structural protein motif that has Zn ion in a coordinated bond to form a stable…

Q: below). The red arrow indicates the amino acid lysin (K) that binds to the oxygen of the retinol…

A: The given diagram shows the primary structure of rhodopsin and tertiary structure of rhodopsin and…

Q: Disulfide linkages are uncommon in cytoplasmic proteins, whereas they are common in extracellular…

A: Oxidation is the most common way for disulfide bonds to form in the endoplasmic reticulum.

Q: Questions 1) Determine the single letter code 40 amino acid sequence of the venom peptide by…

A: Chymotrypsin (endopeptidase) hydrolyzes peptide bonds on the C-terminus of a peptide bond of an…

Q: What interactions stabilize the formation of a ß-sheet from ß-strands? a) Salt bridges from charged…

A: A protein's function depends on its structure. There are four levels of protein structure: primary,…

Q: Which of the following statements are False? (i)     Parallel b-sheets characteristically distribute…

A: Among the given four statements two were wrong.

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

A: Proteins are also called polypeptides because the monomer that forms the proteins commonly called…

Q: (c) The tube and cylinder diagram to the right illus- trates schematically the potassium channel…

A: answers are given below.Explanation:c) the positioning of Tyr62 and Thr74 on the Alpha helix is…