Concept explainers
To draw: The diagram of different functional domains that would be found in the Gal4 protein and in the engineered protein.
Introduction:
The gal operon is present in yeast and regulates the galactose
To determine: The reason that engineered protein no longer regulates transcription of GAL genes.
Introduction:
DNA sequence contain DNA binding domain for binding of proteins involve in gene regulation. RNA polymerase binds to DNA binding protein, and facilitates the activator proteins to initiate the transcription.
To determine: The mechanism by which DNA binding site by this chimeric protein to make it functional in activating transcription of GAL genes
Introduction:
DNA sequence contain DNA binding domain for binding of proteins involve in gene regulation. RNA polymerase binds to DNA binding domain, and facilitates the activator proteins to initiate the transcription.

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Chapter 28 Solutions
Lehninger Principles of Biochemistry (Instructor's)
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- CH3CH2CHO + propanal PhCH2CHO 2-phenylacetaldehyde mixture of four products NaOH 10. In the crossed aldol reaction of propanal and 2-phenylacetaldehyde shown above, a mixture of four products will be formed. Which ONE of the compounds below will NOT be formed in this crossed aldol reaction? OH Ph A H OH OH Ph H B OH OH H H H Ph Ph C Ph D Earrow_forwardAn organic chemist ordered the wrong item. She wanted to obtain 1-hydroxy-2-butanone, butinstead ordered 2-hydroxybutyraldehyde. As a good biochemist, show how the organic chemistcould use biological catalysis to make her desired compound.arrow_forwardPredict the products of aldolase catalyzing the reaction with acetone and (S)-3-hydroxybutyraldehyde.arrow_forward
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