Which statements are associated with positively cooperative oxygen binding of a protein? A. The first oxygen binding increases the likelihood of a second oxygen binding the protein B. Binding curve is a sigmoidal curve C. The protein can bind more than 1 oxygen molecule
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Which statements are associated with positively cooperative oxygen binding of a protein?
A. The first oxygen binding increases the likelihood of a second oxygen binding the protein
B. Binding curve is a sigmoidal curve
C. The protein can bind more than 1 oxygen molecule
C
A and C
A and B
A, B and C
none
Step by step
Solved in 3 steps
- a) Why His/Lys preceed Arg? b) Why Asp preceeds Glu?How does hemoglobin bind O2 cooperatively? A. The binding of one molecule of O2 to one subunit of hemoglobin enhances the assembly of other subunits to form a complete hemoglobin protein. B. The binding of one molecule of O2 to one hemoglobin protein enhances the binding of a molecule of O2 to a different hemoglobin protein. C. The binding of one molecule of O2 to one subunit of hemoglobin enhances the affinity of the same subunit for more molecules of O2. D. The binding of one molecule of O2 to one subunit of hemoglobin enhances the affinity of other subunits for O2.Determine the identity of the N-terminal amino acid after reconstructing the intact protein. Why is this answer correct and why are the others incorrect? A. Asp B. Ser C. Glu D. Ile
- Predict how the mutation in the seventh codon of normal hemoglobin changing it from ctc to act, would it affect the protein being synthesized?In denaturation of DNA and protein explain how denaturation brings about the ailment and what its effect in our body.1a.Describe the information flow in the central dogma. 1b. How does a gene specify the production of a protein? Explain in words and illustrate in a figure.
- Match the following protein pair with whther they are orthologues, paralogues or neither. Human Trypsin and Horse Trypsin Human Trypsin and Horse Chymotrypsin Human Trypsin and Human Elastase B subtilis subtilisin and Horse Chymotrypsin A. Orthologues B. Paralogues C. Neitherwhtat is the function of seperaseOne molecule of 2,3-BPG binds to one tetramer of hemoglobin in a central cavity of the hemoglobin molecule. Is the interaction between BPG and hemoglobin stronger or weaker than it would be if BPG bound to the surface of the protein instead? Explain your answer (hint: think about how these different situations affect the dielectric constant).
- _____________ is the transcription factor that activates the transcription of the LDL receptor gene.Which is incorrect regarding ligand–protein binding reactions?a. Allosteric modulation of the protein’s binding site occurs directly at the binding site itself.b. Allosteric modulation can alter the affinity of the protein for the ligand.c. Phosphorylation of the protein is an example of covalent modulation.d. If two ligands can bind to the binding site of the protein, competition forbinding will occur.e. Binding reactions are either electrical or hydrophobic in natureOnly typed answer otherwise leave it Compare a-keratin and hemoglobin with regard to each of the following: (a) secondary structure; (b) water solubility; (c) function; (d) location in the body.
