Draw two amino acid side chains that can interact with each other via the following intermolecular interactions:
a. ion pairing (salt bridge)
b. hydrogen bond
c. van der Waals interaction (London dispersion forces)
Draw two amino acid side chains that can interact with each other via the following intermolecular...
1. Which of the following amino acids has the most hydrophobic side chain? a). E b). F c). S d). W e). Y 2. Which type of non covalent interaction would you expect to be present between Cl- and H2O? a). Ionic interactions ("salt links") b). Hydrogen bonds c). Van der Waals interactions d). Ion-dipole interactions For the first question, I have F and W both being hydrophobic chains but am unsure why or how to tell which one would...
Questions 1 and 2. 1. (6 pts) Draw the following interactions between the given amino acid side chains. a. Salt bridge between lysine and aspartic acid b. Hydrogen bond between serine and tyrosine c. Hydrophobic interaction between valine and phenylalanine I 2. (7 pts) For the following nucleotide, NH O=P-07 6-1-0 OHOH a. Label the three main components. b. If this DNA or RNA? C. What nucleutide is is this?
Which of the following amino acid side chains can form hydrogen bonds with each other? Isoleucine Leucine Glutamic acid Aspartic acid Lysine Asparagine Arg & Leu Val & Asn Asn & Ser Ser & Val Val & lle
Which of the following is IMPROBABLE? WHY? A hydrogen bond between the side chains of glutamate with the side chain of serine An ionic bond with between the side chains of lysine and aspartate Hydrophobic interactions between the side chains of leucine and isoleucine Salt bridges between alanine and histidine A backbone hydrogen bond between C=O on one amino acid with the N-H of another amino acid 4 residues away.
What type of covalent bond between amino acid side chains functions in maintaining a polypeptide's specific tertiary structure? disulfide bond ionic bond hydrogen bond peptide bond hydrophobic interaction
please answer! 3) Protein structure and amino acid side chains a) Give examples of the types if attractive forces found between the side chains of the following amino acid residue pairs at pH 7.4 00 Leu and Phe (ii) Two Cys (ii) Asp and Thr (iv) Asp and Arg b) Of the 4 levels of protein structure, which ones are stabilized by interactions between amino acid side chains? c) Identify the two regular types of secondary structures and describe the...
7. If an ionic bond is stronger than a dipole-dipole interaction, how can water dissolve an ionic compound? None of these The ion-dipole interactions of a bunch of water molecules gang up on the strong ionic bond and pull it into the solution. The ions never overcome their interatomic attraction and therefore are not soluble. The ionic bond is weakened by the ion-dipole interactions and ionic repulsion ejects the ions from the crystal. The ion-dipole...
I 20. What are the intermolecular forces responsible for the folding of amino acid chains into proteins? Give specifics. 21. How can two different proteins have the same molecular formula, yet have different folds and structures.
Name: CHEM 131 3. (8 pts) What type of interaction is expected between the side chains of the following pairs of amino acids (examples include salt bridges, H-bonding, disulfide bonds and dispersion forces)? Tyrosine and asparagine a) b) Leucine and proline c) two cysteines Give an example of two amino acids that could form a salt bridge (chemical structure or 3 letter d) code) 4. (10 pts) ldentify in which structural feature (1, 2" or 3" structure) of a protein...
26. Which of the following classification does not match the amino acid side chain A) Contains an basic group/ lysine B) It is polar C) Forms disulfide bond/ cysteine D) Forms hydrogen bonds with neighbors/ alanine serine 27. All amino acids found in proteins are L-amino acids EXCEPT the achiral. A) glutamate B) Lysine C) glyeine D) Alamine 28. The plH at which the positive and negative charges of an amino acid balance each ofher is called the A) isotonic...