An enzyme synthesized in the laboratory is found to have little activity when compared to the enzyme extracted from cell culture. Both enzymes were examined and have identical amino acid composition. What is the best explanation for the lack of activity of the synthesized enzyme?
A) The van der Waals radius was altered during laboratory synthesis.
B) The synthetic enzyme was not made of amino acids.
C) The ATP required for self-assembly was present in the cell extract but not in the laboratory synthesis.
D) Denaturation of the synthesized enzyme was not complete.
E) The synthesized enzyme was not folded correctly because molecular chaperones were not present.
E) The synthesized enzyme was not folded correctly because molecular chaperones were not present.
You might also like to view...
Which method of reproduction posed a challenge for clam and oyster fishery workers who thought that cutting predatory sea stars into parts would kill them, but only increased the number of sea stars?
a. Fragmentation b. Fusion c. Budding d. Fission
If the protein Dicer is not functioning, then which kind of posttranscriptional gene regulation is most likely affected?
A) microRNA (miRNA) and small interfering RNA (siRNA) B) alternative splicing C) alternative adenylation D) only microRNA (miRNA), but not small interfering RNA (siRNA) E) small interfering RNA (siRNA)
Which of the following is false about the E. coli Lac operon?
A. it is an example of negative control B. the presence of lactose acts as an inducer C. the repressor binds to the operator D. the mRNA for the receptor binds to the operator
The cells of all muscle tissues are called __________
Fill in the blank(s) with the appropriate word(s)