N-linked glycosylation occurs on residues of proteins. Acidic amino acid residues Methionine Serine and Threonine Asparagine
Q: Which
A: Presence of amino acids and its proximity affects pka value of other
Q: Which of the following statements is CORRECT? O Any protein attached to any sugar side chain is a…
A: Polysaccharides are formed by the polymerization of carbohydrate units. Such structures can be…
Q: Which of the following families:amino acid classifications is/are correct? a.aromatic:Met…
A: Amino acids are biomolecules that have an amino group a carboxyl group and a side group attached to…
Q: Where would the leucine side chain most likely be found in a protein dissolved in water? In the…
A: Amino acids are the building blocks of proteins. The amino acid polymer which joins together with…
Q: When a polypeptide is made, which of the following parts of the monomer are NOT part of the…
A: They are the polymer of alpha-amino acids coded by triplets of bases on the mRNA. These amino acids…
Q: In the deoxy state, Histidine forms an ______ salt bridge with aspartate and an ______ salt bridge…
A: A salt bridge is a non-covalent interaction between hydrogen bonding and ionic bonding. A salt…
Q: Which of the following is true about a peptide bond: Electron delocalization occurs between the…
A: A peptide bond is formed between the α-nitrogen atom of one amino acid and the carbonyl carbon of…
Q: Acid hydrolysis of proteins in order to determine the amino acid composition leaves most of the…
A: Proteins are biomolecules made up of amino acids that are linked by peptide bonds. When proteins…
Q: Which of the following amino acids belaw is not likely to be found in nature? NH NH HS
A: Amino acids are monomer units of proteins. They are organic molecules with certain functional…
Q: Select the two most hydrophobic amino acids. A. Leucine and Isoleucine OB. Arginine and Lysine OC…
A: Hydrophobic amino acids are non-polar and insoluble in water and soluble in other non-polar…
Q: Accoding to the figure below, which amino acid will be added next to the growing polypeptide chain?…
A: A codon is a trinucleotide sequence of DNA or RNA that translates to a certain amino acid. The…
Q: The side chain of which amino acid is most likely to be found in the center of a tightly packed,…
A: Introduction Amino acids are molecules that combine to form proteins and are the building blocks of…
Q: Which of the following amino acids are involved in O-glycosylation linkage? O Tyrosine O Asparagine…
A: O linked glycosylation is a type of post translational modification of polypeptides. It come under…
Q: Which of the following is true about a peptide bond: Electron delocalization occurs between the…
A: Electron delocalization reaction in the peptide bond is given below.
Q: Which of the following amino acid types is mostly likely to be hydroxylated in a posttranslation…
A: Hydroxylation is defined as a process of oxidation reaction where the carbon-hydrogen bond in the…
Q: Indicate whether each of the following amino acids is polar,nonpolar, acidic, or basic:a. glycineb.…
A: The amino acid is a biological molecule that has two functional groups on the same carbon atom.…
Q: What property is exhibited by proteins which allows them to absorb large quantities of water?…
A: Proteins are organic molecules composed of amino acids. The polar nature of proteins makes them…
Q: Which of the following amino acids undergoes phosphorylation? Histidine Glutamic Acid…
A: Post-translational modification of proteins refers to the covalent enzymatic modification of…
Q: The amino acid structure of a polypeptide chain determines its structure. * secondary quaternary…
A: 1° structure- Primary structure 2° structure- Secondary structure 3° structure- Tertiary structure…
Q: Classify these amino acids as acidic, basic, neutral polar, or neutral nonpolar. Glutaminc Acid,…
A: Biomolecules are organic molecules made up of mainly carbon and hydrogen but there are other…
Q: The amino acid that is not optically active is ----- This is because its R group a. proline; forms a…
A: All amino acids except glycine are optically active i.e. they rotate the plane of plane polarized…
Q: In which amino acid Imidazole group, an aromatic ring found?a) Lysineb) Argininec) Histidined)…
A: The amino acids are the building blocks of biomolecules and specifically protein. The carbon,…
Q: The amino acid that does not contain a cyclic ring. a. proline b. threonine c. tyrosine
A: All proteins or peptides present in the cell are composed of twenty standard amino acids. Each amino…
Q: A protease is an enzyme that catalyzes the hydrolysis of the peptide bonds of target proteins. How…
A: A peptide bond is an amide type of covalent chemical bond linking two consecutive alpha amino acids…
Q: Which of the following amino acids have basic (i.e., positively charged) side chains? Serine…
A: The pKa of the ionizable groups on an amino acid determines its net charge at a particular pH. Based…
Q: The amino acid that accounts for disulfide bonds in the tertiarystructure of proteins isa.…
A: The tertiary structure of the protein is the 3D structure of the protein in which one or more…
Q: Polypeptide glutamine residues may be deamidated (the amide group is replaced by a carboxylate…
A: A mechanism known as deamination is used to convert glutamine into glutamic acid in the body. Such…
Q: Which of the following correctly describes the 3 amino acids that are most likely to undergo…
A: Amino acids are organic compounds composed of carbon, hydrogen, oxygen, and nitrogen. They are the…
Q: Which of the following is incorrect about the peptide Val-Leu-Ala-Ser-Gly? It has a net charge of…
A: H3+N-Val-Leu-Ala-Ser-Gly-COO- a) We have 1 positive charge at the N-terminal and one negative charge…
Q: Which of the following about the glycosylation of proteins in the ER is false?
A: a. Dolichol phosphate serves as a lipid carrier. This statement is false. Dolichols play a role in…
Q: One of the following is false: a. Glycosylated HbA has glucose attached to N- terminal of beta…
A: HbA, also termed as adult hemoglobin, is the common hemoglobin tetramer found in humans. This…
Q: The zinc ion in zinc fingers is coordinated through histidine and cysteine residues.
A: ZnFs( Zin fingers ) are small domains of protein with a vital structural role for zinc. They are…
Q: The R group of aspartic acid is –CH2COOH. What will the structure of the amino acid be at a very…
A: Amino acids are biomolecules that contain amino and carboxylic acid groups. These groups are present…
Q: In a disease known as phenylketonuria, a person is not able to break down the particular amino acid…
A: Phenylketonuria: Phenylketonuria (also referred as “PKU”) is a unique genetic condition that causes…
Q: Side chains of which two amino acids may participate in peptide bonding? A. Alanine and Glycine B.…
A: Peptides and polypeptides are linear and unbranched polymers of amino acids linked together by…
Q: All amino acids have two ionizable functional groups: an a-amino group (average pKa of 9.4) and an…
A: Amino acids are organic compounds that combine to form proteins.
Q: When a purine or a pyrimidine is linked through a β-N-glycosidic link to C-1 of a pentose, the…
A: Nucleic acids are the biomolecules that contain Deoxyribose sugar (DNA) and ribose sugar (RNA) .both…
Q: After denaturation of a tertiary protein like lysozyme (with one polypeptide chain), the only…
A: The primary structure is the most basic level of protein organization in which the adjacent amino…
Q: What percentage of the a-amino group of lysine will be protonated at its pI?< 25%…
A: Amino acids are built organic compounds, which contain one amine (-NH2) and one Carboxyl group ( -…
Q: Draw the formula of each of the following: a. Aspartic acid-histidine-tryptophan b.…
A: Hi! Thanks for your question. As you have posted multiple questions we are answering only the first…
Q: Which one of the following is an example of essential amino acid? Leucine Aspartic acid Arginine…
A: To make a protein, amino acids form a specific type of covalent bond with one another. As a result,…
Q: Which of the following is a purely glucogenic amino acid? A. Leucine B. Tyrosine C. Tryptophan D.…
A: Amino acids can be divided into glucogenic, ketogenic and both glucogenic and ketogenic.
Q: Which of these amino acids are not optically active?a) Cysteineb) Lysinec) Arginined) Glycine
A: Optically active compounds have the ability of optical rotation. They do not contain any element of…
Q: Which of following is purely Ketogenic amino acid? a. Tyrosine b. Leucine c. Phenylalanine d.…
A: Amino acids are building blocks of protein. Amino acids are made up of amino group, carboxyl group…
Q: The two amino acids having R groups with a negative net charge at pH 7.0 are Cysteine and methionine…
A: Amino acids are the monomers of polypeptide chains/ proteins. Two amino acids are linked to each…
Q: Which of the following pair of amino acids has polar but neutral side chains? cysteine and…
A: Since there are multiple questions and they are not interlinked, as per our company guidelines only…
Q: Which of the following amino acid residues cannot act as a nucleophile? a. Serine b. Glutamate C.…
A: Amino acids are the building blocks of proteins. They have side chain R groups that are important…
Q: O-linked glycosylation occurs on ___ residues of proteins. a) Serine and Threonine b) Asparagine c)…
A: The attachment of sugar moieties to protein forms glycoprotein. It is one of the post-translation…
Q: Which of the following are part of an amino acid? Select all that apply. ONitrogen containing base O…
A: Biomolecules are organic molecules made up of mainly carbon and hydrogen but there are other…
Q: Which of the statements about denaturation are true? Protein denaturation involves cleavage of its…
A: Denaturation of proteins refers to the breaking of non-covalent bond and disulfide bond resulting in…
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- Question 1Predicting Secondary Structure Which of the following peptides is more likely to take up an -helical structure, and why? (a) LKAENDEAARAMSEA (b) CRAGGFPWDQPGTSNQuestion: A decapeptide composed of ser, ala, IIe. his, trp, phe was treated with 1-flouro- 2,4-dinitrobenzene. It gave a DNP-his on the N terminal and free trp when treated with carboxypeptidase. Upon partial hydrolysis of the peptide, the following fragments were obtained. a. his-lle-phe-ala c. his-ala-phe e. ser-lle-his b. ala-phe-trp d. phe-ala-ser Give the amino acid sequence of the above decapeptide.Question 9. Which of thefollowing is not formed through adehydration synthesis reaction?A. polysaccharideB. polypeptideC. Nucleic acidD. phospholipidE. glycerol
- Text:QUESTION 16 Protein maturation in the ER includes. A Disulfide bond formation B. proteolytic cleavage C attachment of oligosaccharide d. Prolyl isomertzationUnsaturated fatty acids have ----. Question 16 options: multiple amide groups in their hydrocarbon chain. one or more double bonds in their long hydrocarbon chain. one or more single bonds in their long hydrocarbon chain. multiple aldehyde groups in their long hydrocarbon chain.QUESTION 6 What is the three ketter code for each peptide(a) KFYV(b) ERSC(c) PIMFThe 3-letter code for Peptide (a) is: The 3-letter code for Peptide (b) is: The 3-letter code for Peptide (c) is:
- Question 22: which of the following secondary structures would you expect to find on the surface of a globular protein? Alpha helix Beta sheet Loops between two alpha-helices None of the above because water would disrupt the hydrogen bonding that stabilizes these structures A,B and C as long as the polar and charged amino acid side chains face the surface of the protein.QUESTION 16 Peptidyl transferase activity (peptide bond enzyme activity) is associated with what site in the ribosome? E P A XQuestion 1: Your research project is concerned with the expression and purification of a protein called aldehyde dehydrogenase. Describe in detail all steps required from gene amplification to characterisation of the purified protein.
- QUESTION 22 When the final product of a series of enzymatically-catalyzed reactions binds to the first enzyme in the pathway to limit its production, it generally uses ___ because the structure of this final product is generally not similar to that of any of the enzyme's normal substrates. Allosteric activation Zymogen activation Covalent modification Competitive inhibition Allosteric inhibitionQuestion 16 Which of the following is not considered as a requirements for the effective binding and translocation of proteins into the ER? signal sequence in the newly synthesized polypeptide GDP SRP and SRP receptor TransloconQUESTION NO. 1L-Carnitine is synthesized primarily in the liver but also in the kidneys and then transported to other tissues. It is most concentrated in tissues that use fatty acids as their primary fuel, such as skeletal and cardiac muscle. In this regard, L-carnitine plays an important role in energy production by conjugating to fatty acids for transport from the cytosol into the mitochondria. L-carnitine shuttle is an example of A. ion driven active transport B. facilitated diffusion C. simple diffusion D. ATP driven active transportE. symport F. antiportQUESTION NO.2 Statements: (1) Glucose is both a hexose and a aldose. (2) There can never be more than three enantiomers for a molecule. (3) All common disaccharides have beta-one-four linkages. Which statements are true?