Q: Describe the basic structure of an amino acid and the formation ofa peptide bond.
A:
Q: Draw the structure of the amino acid arginine and indicate all ionizable groups
A: Proteins are unbranched polymers constructed from 20 standard α-amino acids. They have four…
Q: What structural level is represented by the sequence of amino acids in a polypeptide chain?
A: Amino acids are biological compounds which play an important role in the various biochemical…
Q: Draw a titration curve that represents the amino acid backbone?
A: The titration curve is considered as the graphical representation in which pH results in the change…
Q: Write down the structure of the amino acid asparagine and explain why you would classify it as an…
A: Amino acids are the smallest units of proteins and polypeptides. Amino acids differ from each other…
Q: Explain how you come up with the poly peptide chain using the concept of protein synthesis?
A: The mechanism wherein the instructions in DNA are turned into a functioning product is known as the…
Q: What atoms are present in a planar unit in a protein chain?
A: The building blocks of proteins are amino acids, which are small organic molecules that consist of…
Q: Identify the amino acids contained in the tripeptide below:
A: Amino acids are organic molecules that act as the building blocks of proteins. A functional protein…
Q: How many nucleotides would it take to make a polypeptide chain that is 8 amino acids in length?
A: It is responsible for the production of a protein or a functional product such as rRNA (ribosomal…
Q: identify an amino acid that contains a sulfhydryl side chain (complete name)
A: Amino acids are monomeric units of polypeptides. They form peptide bonds to make a polypeptide.…
Q: Define ε-amino group
A: The amino group is the -NH2 substituent in a carboxyl group. Amino groups are components of amino…
Q: Which type of nucleic acid would have the sequence "ACCGAUUG"?
A: Question - Which type of nucleic acid would have the sequence "ACCGAUUG" ? A). DNA B). mRNA…
Q: Identify the parts of the heterotrimeric G-protein shown in the image. B
A: Introduction :- G proteins, also known as guanine nucleotide-binding proteins, are a group of…
Q: Draw the chemical structure of a generic amino acid, using R for the side chain.
A: Amino acids are the structural and functional subunits of the protein molecules. There are about 20…
Q: Describe the general structure of amino acids with annotated diagram
A: The large organic molecules that are produced in the human body are called as biological…
Q: Explain how a polypeptide is constructed from aminoacids.
A: Formation of protien from amino acid is done by the proces translation. Each amino acid binds with…
Q: Name the enzyme which helps in formation of peptide bond?
A: The peptide bond is a chemical bond and is formed when the carboxyl group of one molecule reacts…
Q: identify an amino acid that contains an amide side chain (complete name)
A: Biomolecules are organic molecules made up of mainly carbon and hydrogen but there are other…
Q: Draw out the structural formula of the oligopeptide, with the first amino acid as the N-terminus
A: Amine and carboxylic acid groups in amino acids are joined together, and forms chains of amino acids…
Q: Explain the Structure of a polypeptide.
A: Introduction: Amino acids are biomolecules that comprise two functional groups, these are amino…
Q: Write the structure, identify the R groups and describe the chemical properties of these amino…
A: The very first thing to point out of the above question and it is Sucrose. Sucrose is not the Amino…
Q: Identify the amino acid shown below. (Note: single letter code is provided as answer) H. H,N-C-COOH…
A: Amino acids are chemical molecules that combine to produce proteins and are hence known as building…
Q: A small generic section of the primary structure of an a helix is given by -amino acid, -amino…
A: Alpha-helix is an example of a secondary structure. Alpha-helix is formed by the hydrogen bonding…
Q: what is the sequence of peptide 4?
A: DNA sequencing is a biochemical method for determining the order of the nucleotide bases, adenine,…
Q: what is the sequence of peptide 1?
A: A nonpeptide is the a polypeptide containing nine amino acids linked via peptide bonds. The sequence…
Q: Would the peptide group be planar if the amino group of amino acids was bonded to the β carbon of…
A: Peptide group is generally linked to the amide bond that links the α-amino nitrogen of one amino…
Q: Draw amino acids Methionine, Phenylalanine, Valine, and Phenylalanine
A: Introduction: Amino acids are organic compounds that contain the functional groups amino (–NH2) and…
Q: Draw a generic amino acid and identify its α carbon and its substituents.
A: An amino acid is the organic compound which contains a carboxyl group, an amino group, hydrogen…
Q: A ___ is a polymer made up of amino acid monomers?
A: A polymer is a substance that consists of large molecules composed of many repeating subunits…
Q: Is oligonucleotide a protein?
A: The nucleotide is a building block of nucleic acids that is DNA and RNA. The base, phosphoric acid,…
Q: Give the three-letter and one-letter names of the amino acids in each oligopeptide starting from the…
A: Oligopeptides are peptide sequences that consist of 2 to 20 amino acids. Peptides are sequence of…
Q: Explain the secondary and tertiary structures of polypeptide chains ?
A: Proteins or polypeptide is sequence of amino acids that are joined by peptide linkage between the…
Q: Predict the geometry around each carbon atom in the amino acid alanine.
A: Molecular geometry can be predicted from the structure by using the valence-shell Electron-pair…
Q: Give an example of a protein that has quaternary structure. How many polypeptide chains are present…
A: For large macromolecules such as proteins, describing and understanding structure are approached…
Q: Explain the role of lactose in structure ?
A: Lactose is the primary sugar (or carbohydrate) found naturally in milk and dairy. Lactose is made up…
Q: After the polypeptide chain is formed, what or who helps it fold into its final, three-dimensional…
A: Proteins are formed from a set of twenty amino acids which has a unique side chain. The side chains…
Q: Which of the following correctly describes a typical alpha helix protein secondary structure?
A: Protein play wide variety of essential function in our body. They provide strength and structural…
Q: Draw a peptide with 2 or 3 amino acids from the name Emily
A: Peptides are formed by the joining of the amino acids by the removal of water via the condensation…
Q: Show the chemical structure of all 20 amino acids ?
A: Amino acids are organic molecules composed of carbon, nitrogen, hydrogen, and oxygen. Amino acids…
Q: Identify each of the amino acid in the polypeptide and then name it using the 3-letter…
A: Amino acids are organic compounds having functional group carboxyl and amino. There are 20 amino…
Q: Attach an amino acid monomer below. Name of the amino acid: Abbreviated name:
A: Amino acids at the building blocks of proteins.
Q: I-D-E-L-Y-S-Q-V-C-S-H-L-D-T-V-R This amino acid sequence forms an alpha helix. When thinking about…
A: A single polypeptide chain as given here, when folding into a tertiary protein molecule from a…
Q: Show dipeptide with two of your amino acids bonded to each other. Draw the structure. The amino acid…
A: A dipeptide is formed when two Amino acids join together by one Peptide bond. This happens via a…
Q: Is the R group (CH3) on the amino acid alanine seen below, polar or non-polar? If there were several…
A: Amino acids are the structural units that make up a polypeptide or protein. All amino acids share…
Q: How many amino acid units do the structure below has?
A: Amino acids are organic compounds having functional group carboxyl and amino. There are 20 amino…
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- Draw the following amino acids interactions: 1. H-bond - between -0H of Serine amino acid and C=0 backbone of glutamic acid. 2. Ionic bond- between ionized aspartic and asparagine amino acids. 3. Disulfide interaction between 2 molecules of Cysteine amino acids. 4. Hydrophobic interaction between Alanine and Leucine R-groups.Which of the following group(s) can be found in both an amino acid and a protein? a. Rgroup (side chain) only b. Free amino group and carboxyl group c. Free amino group, free carboxyl group and R groups d. Carbonyl group and free amino group and R groupsWhich of the following statement about proteins is correct a. alpha helix and Beta pleated sheets are considered quaternary structures b. a single polypeptide only has primary sytructure, secondary, tertiary, and quaternary structures require more than one polypeptide c. there are 30 essential amino acids that are the monomer building blocks of proteins d. polypeptides have a distinct polarity (directionality) with one end refered to as the free amino end, and the other called the free carboxyl end
- At the center of all 20 standard amino acids is what is termed the a-carbon that is covalently bonded with four other chemical groups. Which of these four chemical groups is not a normal component of all amino acids? A. an amino group B. a carboxyl group C. a side chain (R group) D. a methyl groupWhat type of interaction would you expect between the following R groups in the tertiary structure of a protein? -CH2COO- and -CH2Ch2CH2Ch2NH3+ a. salt bridgesb. disulfide bondsc. hydrophobic interactionsd. hydrogen bondsYou have a solution with the mixture of the following peptides: 1) Wing-Cys-Gly 2)phe-tyr-trp-phe 3)glu-asp-glu-ileHow are each of them charged at the following pH?a) 3 b) 5 c) 7 d) 9
- An octapeptide composed of four repeating glycylalanyl units has ___. A. one free amino group on the glycyl residue and one free carboxyl group on a alanyl residue B. two free carboxyl groups, both on the glycyl residues C. two free amino groups, both on alanyl residue she D. one free amino group on the alanyl residue and one free carboxyl group on a glycyl residueWhich of the following correctly describes peptide bonds? * A. They are a special type of amide bond. B. They are very stable bonds. C. They form when water separates from an amino group and a carboxylic acid. D. They are a bond that shows resonance. E. All of these Which group consists only of amino acids with polar side chains? * A. serine, threonine, and leucine B. serine, threonine, and cysteine C. serine, threonine, and valine D. serine, threonine, and isoleucineWhich of the following characterize -helix regions of proteins? (A) They all have the same primary structure. (8) They are formed principally by hydrogen bonds between a carbonyl oxygen atom in one peptide bond and the amide hydrogen from a different peptide bond. (C) They are formed principally by hydrogen bonds between a carbonyl atom in one peptide bond and the hydrogen atoms on the side chain of another amino acid. (D) They are formed by hydrogen bonding between two adjacent amino acids in the primary sequence. (€) They require a high content of proline and glycine
- Draw the folded tertiary structure of a polypeptide of at least five amino acids including most of the labels: 1-backbone 2-aminoacid 3-alpha-carbon 4-amino terminal 5-carboxyl terminal 6-peptide bond 7-hydrogen bond 8-Van de Walls 9-hydrophobic interactions 10-electrostatic bonds 11-disulfide bonds 12-Met 13-Cys 14-domain 15-condensation 16-water (byproduct) 17-primary structure 18-secondary structure 19-tertiary structure 20-phosphorylation 21-Met 22-CyLabel the N- & C termini Label ALL alpha -carbons (with an alpha) Label ALL peptide bonds(highlight or draw an X through these) Circle all AAresidues label which ones are nonpolar, polar,-acidic, & basic For each side chain, label/identifywhat types of R - group interactions it canparticipate in (H - bond, disulfide bond, ionic/electrostatic interactions, or hydrophobicinteractions.) Peptide StructureList down which amino acids are capable of the following interactions in the tertiary structures of proteins. a. hydrophobic, b. hydrogen bonding, c. electrostatic interactions, d. covalent bonding