Tissue factor (TF) contains four cysteine residues that form two disulfide bonds in the native structure of TF. Suppose TF is reduced and unfolded in urea. If the reduced unfolded protein were oxidized prior to the removal of the urea, what fraction of the resulting mixture would you expect to possess native disulfide bonds? Express your answer using three significant figures.
how many covalent bonds does each carbon have in the Lewis structure?
Draw the Lewis structure for the molecule CH2CHCH3. How many sigma and pi bonds does it contain?
Draw the Lewis structure for the molecule CH3CH2CCH. How many sigma and pi bonds does it contain?
Identify the true statements regarding disulfide bridges (disulfide bonds). Include all that apply. a. Disulfide bridges are important to primary and tertiary structure, not quaternary b. Disulfide bridges have a stabilizing effect on proteins c. A disulfide bridge forms between two cysteine residues. d. Disulfide bridges can exist between two amino acid residues on the same chain. e. Disulfide bridges are formed by an irreversible oxidation reaction.
Question 59 How many n bonds does the given structure have? // HoN OS \ ООООО 1 г гоо
a) how many valence electrons does a Ni^+2 possess? how many unpaired valence electrons? write its ground state electron configuration. b) which ionic compound is predicted to have the strongest ionic bonding? a) KF b) RbCl c) Rbl d) KBr e)Li
Which of the following is NOT true about disulfide bonds? Disulfide bonds form between two sulfur atoms. The formation of a disulfide bond is an oxidation reaction. The terms disulfide bonds and disulfide bridges are used interchangeably. Disulfide bonds determine the three dimensional conformation of a protein.
If a protein is composed of the two polypeptide chains connected together via two disulfide bonds with no free sulfhydryl groups. The protein was treated with mercaptoethanol to break its disulfide bonds, and then the mercaptoethanol was removed so that disulfide bonds could re-form. How many different arrangements of disulfide bonds are possible? (the protein has a total of 4 Cys and 2-bonds) Please, explain your answer in detail.
Why does the sunflower possess the infertile ray flowers? How many seeds can a Peruvian Lily (Alsroemeria) flower will ultimately produce? Explain