Which one is not an example of supersecondary structure? the pyrrole ring O the Greek key the ß-meander O the ß-barrel none of the choices Proteins that aid in the correct and timely folding of other proteins are called Le 11011111 P Refer to the structure above, The type of bonding labeled "N" in this figure is: O Hydrogen bonding of the peptide backbone Covalent bonding involving the R-groups O Hydrophobic interactions O Metal ion coordination O Electrostatic attraction
Q: at is the effect of adding neurotoxins to the Motor neuron membrane and muscle membrane potentials?…
A: Introduction: Neurotoxins are poisonous substances that cause destruction to the nerve cells. It…
Q: H₂N-CH-C-OH H₂N-CH-C-0 H₂N-CH-C-OH H₂N-CH-C-0- H H A OB At pH=pKa2, what is (are) the expected…
A: The proteins are composed of twenty naturally occurring amino acids. The net charge of an amino acid…
Q: 8.- Under the influence of ionizing radiation or vitamin E-deficiency, an increase in the…
A: Ionizing radiation includes x-rays and gamma rays. These radiations cause irreversible damage to the…
Q: What are riboflavin and niacin? Explain how these molecules are important to cellular metabolism.
A: The series of chemical processes that take place within cells in living things in order to sustain…
Q: 10. According to the ability to be sy nthesized in the human body the p roteinogenic amino acids can…
A:
Q: Functions of Glycoconjugates Q3.2- What is biochemical basis for ABO human blood types? Explain why…
A: Blood helps to carry nutrients and blood gases all over the body. Blood is composed of RBCs, WBCs,…
Q: Based on our pka's table, pKa1 of -COOH group of Cys = 1.71 pKa2 of -NH2 group of Cys = 10.78…
A: pKa is defined as the number which indicates the acidity of the particular molecule. It shows the…
Q: explain in detail the oxidative phosphorylation in cellular respiration
A: Cellular respiration is a collection of three metabolic pathways that generate ATP by oxidation of…
Q: First start with a pre-MRNA with four exons and three introns and diagram the splicing reactions…
A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: What is the precursor of Cholesterol? a.Acetyl-CoA b.Glycerol c.Isoprene d.Fatty acid
A: Cholesterol is produced by the liver as well as by the majority of cells in the body. Lipoproteins,…
Q: Which statement about the ETC is/are FALSE?
A: ETC or the electron transport chain is a collection of protein complexes and other molecules bounded…
Q: Look for 5 color reaction/test that can be used to identify amino acids. Indicate also the color for…
A: Amino acids are biomolecules that have an amino group and a carboxyl group linked to the same carbon…
Q: For the serial dilution, your stock solution must have a concentration of 3.5 mg/mL. How much…
A: Here we are trying to prepare the stock solution from the raw red cell (RBC) solution. The parameter…
Q: f a DNA double helix is 23% guanine, it's also _____ % cytosine, ____ % adenine, and ____ % thymine.
A: Introduction: The base-pairing rule of DNA is known as Chargraff's rule, which was discovered by…
Q: Which of the following statements regarding hydrogen bonding in secondary structures is true?…
A: A weak chemical link that exists between a hydrogen atom that is partly positively charged and an…
Q: a) How many ionizable groups does the tyrosine-alanine-isoleucine-glycine tetrapeptide ustiloxin B…
A: Hi! Thank you for the question. We are authorized to answer one question at a time, since you have…
Q: Increased NADH concentrations in the liver encourage gluconeogenesis. What do you think about this…
A: Gluconeogenesis is glycolysis run backwards with three new enzymatically catalysed reactions where…
Q: charge? Draw the side chain of arginine in the conjugate acid form and conjugate base form. Which…
A:
Q: Lipid movement showing migration of the lipid from one monolayer to another is called? flexion…
A: INTRODUCTION lipids - Energy-rich biomolecules made mostly from carbon and hydrogen atoms; generally…
Q: variations of velocity with ph can lead to a number of changes in the enzymes's abitllity to…
A: Most enzymes are protein in nature although some RNA called ribozymes also display enzymatic…
Q: Which of the following enzymes below is/are involved in the control of Krebs' cycle? citrate…
A: Kreb cycle also known as TCA cycle. It occur in matrix of mitochondria in eukaryotes and cytosol in…
Q: 1) The smallest monsaccharides that can exist are: a) Pentoses b) Trioses c) Hexoses d) Tetroses…
A: Carbohydrates are polyhydroxy aldehydes or ketones. They can be classified as monosaccharides,…
Q: 21) Chemical energy in sugars is converted into energy the cell can use in the A) mitochondria. B)…
A: Metabolism is the set of reactions that are essential to sustain life. Anabolic and catabolic…
Q: c) Show resonance structures for the protonated version of Arginine's side chain. d) Show all the…
A: Arginine is a basic amino acid and arginine side chains are protonated under physiological…
Q: Which of the following statements is/are TRUE for photosynthesis? The e- moves from H20 to NADP+.…
A: Photosynthesis occurs in two phases- light phase and light independent phase (commonly known as dark…
Q: Identify/Choose all possible functional group(s) found in the structure. Some functional group maybe…
A: There are three different functional groups present in aspirin, that contribute to its properties.…
Q: Why is it more important for DNA to be replicated accurately than transcribed accurately?
A: DNA is the genetic material in almost all the organisms in earth. RNA is formed from DNA , that…
Q: 8. Predict the effect of each of the following environmental changes on the pKa of a glutamate side…
A: The proteins are made of twenty naturally occurring amino acids. The net charge on the alpha ,…
Q: The retention factor, Rf is measured: Any place in a spot - some of the molecules migrated there. At…
A: Rf means retention factor in a thin layer of paper chromatography. A solute or mixed sample is…
Q: Define Parfocal.
A: A microscope is an instrument used to make very small objects or things visible to the naked eye. It…
Q: 4. Describe aldonic acids, uronic acids, alditols, deoxy sugars, and amino sugars.
A: Modified monosaccharides are called sugar derivatives. Monosaccharide molecules that have undergone…
Q: 9. A patient with liver failure underwent a study of the electrophoretic spectrum of serum proteins.…
A: Proteins are the complex molecules that are made up of Aminoacids. They have definite charge that is…
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: Which of the following has the most available energy to extract?
A: Fatty acids are transported into the cell. The enzyme fatty acyl-CoA synthase(FACS) adds a CoA group…
Q: 3. The following descriptions are for the components of oxidative phosphorylation. List the name of…
A: The electron transport chain consists of a series of protein complexes embedded in the inner…
Q: Identify if the statements are TRUE or FALSE. If false, write the word/s that make(s) the statement…
A: RNA's primary structure is its nucleotide sequence. The secondary structure of RNA is the structure…
Q: Which of the following statements about the "central role" of TCA is/are correct? a. Some metabolic…
A: Kreb's cycle is also called as citric acid cycle or TCA (Tricarboxylic acid cycle). It is a common…
Q: Which of the following are common to all metabolic pathways? a) Citric acid cycle b) Oxidative…
A: Citric acid cycle carries out the complete oxidation of acetyl CoA and release CO2, NADH, FADH2, and…
Q: Which of the following statements correctly describe(s) the reaction: ADP + Pi + H+ → ATP + H2O…
A: ATP is a high energy molecule which contains three phosphate groups, and adenosine (adenine + ribose…
Q: Read and analyze the following statements. (i) One of the end products of photosynthesis is the…
A: Photosynthesis is the process by which plants use water from soil, carbon dioxide from air, sunlight…
Q: Enzyme Triacylglycerol Lipase Rennin Catalase Hexokinase Enzyme Official Name (write N/A if…
A: Enzymes are usually comprise of proteins which work as a catalyst and increase the rate of reaction…
Q: Carbamoyl phosphate is formed from a.ATP b.C02 c.H20 d.NADH
A: The urea cycle is the biochemical pathway that converts ammonia into urea. The pathway channels all…
Q: Refer to Table 19.1 and identify which amino acid pairs be- low will not form R-group interactions…
A: Amino acids are biomolecules in which an amino group, a carboxyl group and a side group are linked…
Q: The Na+/K+ ATPase pump is a P-type pump and requires a covalent phosphorylation from a phosphate…
A: ATPase is the most common example of primary active transport. Virtually every animal cell…
Q: 11. Match the following Sigmoidal curve ✓ Oxygen storage ✓ Contains heme Globular proteins Tetramer…
A: Haemoglobin is a transport protein that can transport oxygen to cells and tissues in the body.…
Q: Why does the velocity reach a plateau (asymptote) at high substrate concentrations? a. At high…
A: Introduction Enzymes are known as biocatalyst. They increase rate of a chemical reaction by reducing…
Q: Which of the following is not found within the cytoplasm of a cell? a) Plasma membrane b) Cytosol…
A:
Q: Galactosemia is due to? A. lactase deficiency B. accumulation of lactic acid C. accumulation…
A: Galactosemia is a metabolic disorder, due to the deficiency of the enzyme galactose-1-phosphate…
Q: Identify if the statements are TRUE or FALSE. If false, write the word/s that make(s) the statement…
A: Transamination is a chemical reaction that is responsible for the deamination of most amino acids.…
Q: The 3° structure of a protein refers to the protein's overall, 3-dimensional shape in space. This…
A: Amino acids are biomolecules that have an amino group, a carboxyl group and a side group that is…
Step by step
Solved in 3 steps
- Which type of motifs/folds are found in the protein shown below Coiled-coil O EF Hand O Horseshoe O Rossmann O Jelly roll O Greek key O Alpha/beta barrel O Beta barrel O Beta sandwich OZinc fingerSelect the properties that apply to the secondary structure alpha helices (select all that apply). U 0 can be Antiparallel can be Parallel are typically right handed are typically left handed obeys n+4 rule are formed by the pattern of hydrogen bonding the backbone makes with itself are formed by the pattern of covalent bonds the backbone makes with itself are formed by the pattern of electrostatic attractions the backbone makes with itselfPart B The full structure for the polypeptide found in wasp venom is shown. Identify the individual amino acids in the structure below. Drag the appropriate labels to their respective targets. lle Asn Leu Lys Ala Val Gln Asp Submit HN **** H₂N Request Answer NH₂ TI NH₂ 0= 16 NH₂ Reset Help NH₂
- The tertiary structure of a protein is maintained by interactions between the side chains of amino acid residues one such interaction is between cysteine residues, sketch a covalent bond link that can form between side chains of two cysteine residues. Only relevant atoms that can form the link need to be shownWhich of the following statements concerning the peptide NH3*-Val-Ala-Gly-Lys-Leu-Gly-Val-Phe- Tyr-lle-COOH is correct? O The peptide can form an alpha-helical secondary structure O The peptide can form a beta-pleated sheet O The last amino acid residue is Val. O Three peptide linkages are present.Give the force of interaction involved in the protein folding of the protein structure A and C: COO CH,C-N-H• • •0- Pleated sheet structure A H C Helical structure CH3 CH3 - CH3 -CHCH,CH, CH- CH, CH3 (CH,),NH, -0-CCH,- C=0..•HN CH, CH, CH,CH CH,CH CH, CH, CH OH 0=C -CH,-S,S-CH,- H,Ñ Structure A: H-bonding: Structure C: Van der Waals O Structure A: Covalent interaction; Structure C: dipole-dipole interaction O Structure A: Salt bridge: Structure C: H-bonding Structure A: Hydrophobic interaction; Structure C: ionic interaction 00000 B
- Which of the following is the TRUE statement? When found together, a helices and B sheets are generally found in the same structural 'layer The B conformation is most stable when the individual segments are twisted in a left-handed direction Hydrophobic interactions make a large contribution to the stability of protein structures, therefor, burial of hydrophobic amino acid residues need at least two layers of secondary structure The backbone segment of a ß conformation polypeptide segment can readily H-bond to an a helix adjacent to itThe amino acid proline (Choose all that apply) O Is a residue frequently found in secondary structure, turns Has an ionizable side group at pH 7.0 O Has a side chain hydroxyl group O Has a free a-amino group Has a free a-carboxyl group O Has a side chain group sulfhydryl group Is a residue frequently found in secondary structure, a-helix O Has a polar side chainThe different types of interactions that stabilize the protein tertiary structure are illustrated in the diagram below. Which type of interaction moves some part of the polypeptide chain toward the inside of the folded protein? OH Hydrophilic OH CH₂ interaction with water Hydrogen bond -NH₂3-0- C Salt bridge -CH₂-OH C=0 H-N H 0-CH,- I H Hydrogen bond Salt bridge O Disulfide bond 222 -SIS Hydrophobic interaction 200 O Hydrogen bond O Hydrophilic interaction Disulfide bonds B-Pleated sheet O Hydrophobic interaction CH₂ CH₂ a Helix CH3 CH3 Hydrogen bonds
- A tetradecapeptide (14 amino acid residues) gives the following peptide fragments on partial hydrolysis. From this information, deduce the primary structure of this polypep- tide. Fragments are grouped according to size. Pentapeptide Fragments Tetrapeptide Fragments Phe-Val-Asn-Gln-His Gln-His-Leu-Cys His-Leu-Cys-Gly-Ser His-Leu-Val-Glu Gly-Ser-His-Leu-Val Leu-Val-Glu-AlaWhich of the following statement is not true? In a secondary structure the consecutive residues have phi and psi values that are quite different. The Ramachandran diagram defines the restrictions of polypeptide backbone conformation. Two α helices with hydrophobic side chains repeated in a regular pattern can form dimeric structures in water. Greek key motifs occur frequently in antiparallel β structures. Both α helices and β sheets can be amphipathic.8) The figure shows an unfolded polypeptide consisting of six amino acids. Describe how cooperativity will drive protein folding of the polypeptide chain into an alpha-helixe- 10EEHOW is AG changed as each amino acid is incorporated into the secondary structure - s)? O H O H 3 H. H. 5 CH-C H. 6 -N-CH-C- OH O H,N CH-C -N CH C-N CH CH CH2 CH2 CH2 CH2 CH OH CH H;C CH3