Question

In: Biology

Describe the properties of an amphipathic alpha helix and identify numbered amino acids in a dodecamer...

Describe the properties of an amphipathic alpha helix and identify numbered amino acids in a dodecamer polypeptide that contribute to the chemical properties of this secondary protein structure. Where are amphipathic alpha helices found in a globular cytosolic protein?

Solutions

Expert Solution

Ans-)It is a secondary structure- of protein in which one side of Amino acid is hydrophilic whereas other side is hydrophobic. In each residue, the pattern of Amino acid alters . It is important for the interaction of membrane with proteins and peptides.

The membrane made up of different types of membrane Proteins. Lipid bilayer membrane is made up of it's Mass. The hydrophobic side of amphiphatic helix interacts with hydrophobic tail of lipid in the inner side of bilayer whereas hydrophilic end is exposed to water.

Amphiphatic alpha helix are present at the surface of globular cystolic protein.


Related Solutions

What would be the expected orientation of an amphipathic alpha helix occurring in a globular protein...
What would be the expected orientation of an amphipathic alpha helix occurring in a globular protein in aqueous solution? Select one: a. Hydrophilic amino acids are complementary to hydrophobic amino acids, so the hydrophilic side of the alpha helix should be facing toward the hydrophobic core of the protein. b. A soluble protein will have mostly hydrophilic amino acids in its core, so the helix will be arranged to have the hydrophilic side facing toward the core of the protein....
The structure and properties of amino acids determine the structure and properties of proteins and, therefore,...
The structure and properties of amino acids determine the structure and properties of proteins and, therefore, their function. How do amino acids and peptide properties dictate protein structure and function? In your explanation, please include the key terms hydrophobicity, hydrogen bonding, electrostatic interactions, acid-base property.
The structure and properties of amino acids determine the structure and properties of proteins and, therefore,...
The structure and properties of amino acids determine the structure and properties of proteins and, therefore, their function. How do amino acids and peptide properties dictate protein structure and function? In your explanation, please include at least one representation and the key terms hydrophobicity, hydrogen bonding, electrostatic interactions, acid-base property
Two amino acids are either not a standard alpha- amino acid or in the S configuration....
Two amino acids are either not a standard alpha- amino acid or in the S configuration. Which residues are they, and how are they different? Illustrate your reasoning with chemical structures
Consider a alpha-helix "stretch" of a protein consisting of 20 amino acid residues compared to a...
Consider a alpha-helix "stretch" of a protein consisting of 20 amino acid residues compared to a Beta-strand "stretch" of a protein consisting of 20 amino acids(which of course is part of a Beta-sheet). What is the length of this alpha-helix and Beta-strand portion of the protein in angstroms?
explain the role of alpha helix and beta helix in transmembrane
explain the role of alpha helix and beta helix in transmembrane
1. The alpha-tubulin molecule is composed of 450 amino acids. What is the minimum number of...
1. The alpha-tubulin molecule is composed of 450 amino acids. What is the minimum number of base pairs of DNA needed to encode the alpha-tubulin molecule? A. 1350 B. 1335 C. 450 D. 445 2. Compared to a 0.5 M NaCl solution, a 0.2 M NaCl solution is __________. A. hypotonic B. hypertonic C. isotonic D. neotonic 3. You have identified a frame-shift mutation very near the N-terminus of the protein you are studying. What will be the MOST LIKELY...
The 21st and 22nd amino acids found in proteins are the rare amino acids ______________ and...
The 21st and 22nd amino acids found in proteins are the rare amino acids ______________ and ______________. ________________ are nonviral genetic elements that have reverse transcriptase activity. An example of retrotransposons in the human genome is the ____ family of sequences.
2. Why is it relevant for biochemists to consider the acid/base properties of amino acids? 3....
2. Why is it relevant for biochemists to consider the acid/base properties of amino acids? 3. What are the conventions for displaying a peptide sequence? 4. What chemical characteristic(s) of the peptide bond make it rigid and planar? 5. What are 1-2 concepts you continue to struggle with from the reading? 6. Write one broader question that reading raises for you. This question could relate to applications of concepts to medicine, research, etc
The main function of tRNA is to * Identify amino acids and transport/ carries them to...
The main function of tRNA is to * Identify amino acids and transport/ carries them to ribosomes Induce the ribosome translocation Inhibit protein synthesis Catalyze the peptide bonds between two amino acids
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT