The specific question was
How would one overexpress an important protein. Include the method used to enable rapid one-step purification.
My answer is
Isolote the gene encoding for the protein and ligate to His-tag. . Then clone modified gene into a LAC promoter in a bacterial artificial chromosome and tranform into E-coli, make sure the BAC has Ampicillin resistance gene. Then select for bacteria having Ampicillin resistance. intruduce lactose to induce LAC promoter. Then remove proteins and apply to affinity medium to which the HIS tag will bind and then wash to remove unwanted proteins. then elute wanted proteins using imidazole.
what do you think of my answer?
2007-01-11
01:02:00
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3 answers
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asked by
nikos k
1
in
Biology