Multiple choice

Threonine operon of E.coli strains is exploited for threonine production. Which enzyme is coded by the thrB-gene of E.coli operon?

  1. Homoserine dehydrogenase

  2. Threonine synthase

  3. Aspartate semialdehyde dehydrogenase

  4. Homoserine kinase

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Homoserine kinase is coded by gene thrB. It converts homoserine to homoserine phosphate.