If one Beta-strand is comprised of eight amino acids, how long is It, in Angstro

Question

If one Beta-strand is comprised of eight amino acids, how long is It, in Angstroms? 56 48 28 12 None of the above Consider the necessary biochemical features of a single Beta strand of this protein. Which sequence is most likely from a beta strand in this protein? GSAKLR GALSKR GASKRL GRKSAL Cannot tell If this protein is 345 amino acids long, estimate its molecular weight. 34 kDa. 38 kDa 34000 kDa 38000 kDa A metric femtotonne. The rate constant (k) for a second order reaction has the units: Ms-1 M-1 s-1 s-1 M s None of the above Estimate the amount of substrate one needs to add to fill half the active sites: 4 uM 20 uM 50 uM 828 uM 1600 uM For the above enzyme, if the enzyme concentration [t total] was 25uM. what was the approximate turnover number of per second? 300 30 3 0.003 cannot tell.

Explanation / Answer

Answer (7)

The translation (or rise) in a beta strand is 3.5 Angstroms/residue.

8 residues x 3.5 Angstroms/residue = 28 Angstroms

So the ansewer is (C) 28

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