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boa boa
wrote...
Posts: 1
Rep: 0 0
11 years ago
You must subclone the
coding region of gene X (see below) in the bacterial expression vector pQE60 using PCR. Write the sequence of two oligonucleotides that will allow you to clone the coding
sequence in the vector. The coding sequence must be in frame with the ATG of the vector. The histidine tag must be present
at the C-terminus of your recombinant protein. The oligos must be as short as possible but must
hybridize with 20 nucleotides of the template srand. The start and stop codons of gene X are
underlined.
Coding sequence of gene X
GTCGATCAAT ATGGAACATG TTTACTCCAA ACCACCGCAC ACCAATTATG
GAAACCAAGC CGGAAAAGAA TTCCGGTGGA GAGCGAAAAA AAAGGATTCC
GAATCGTGAA CTGCCAAAAA CATTTTGAAG CCAACGATTC CGACGTCATC
CTCGCCACCC TAGCTAAATC AGGCACCACT TGGTTAAAAG CTCTTCTCTT
TGCTCTCATT CACCGACACA AGTTCCCAGT TTCTGGCAAG CATCCTCTTC
TGAAACAGCA GTAGCAGCGT TTAAAGGGAA GTTTATT
Oligo #1 5’ _____________________________ ___________…
Oligo #2 5’ _____________________________ ___________…
Nco1 = CCATGG BamH1 = GGATCC BglII = AGATCT HindIII = AAGCTT
Nco1 BamH1 BglII HindIII
pQE60 (RBS)CCATGGGAGGATCCAGATCT(blackbox) TAAGCTTCCGCATAATTAGCTGAG
1 minute ago - 4 days left to answer.
Additional Details
underlined in gene x : the first ATG and the last TAA
underlined in vector: the first ATG
Source  none Frowning Face
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Replies
wrote...
11 years ago
AUG is a universal starting codon found in mRNA. The DNA sequence for AUG is TAC.

GTCGATCAAT ATGGAACATG TTTACTCCAA ACCACCGCAC ACCAATTATG
GAAACCAAGC CGGAAAAGAA TTCCGGTGGA GAGCGAAAAA AAAGGATTCC
GAATCGTGAA CTGCCAAAAA CATTTTGAAG CCAACGATTC CGACGTCATC
CTCGCCACCC TAGCTAAATC AGGCACCACT TGGTTAAAAG CTCTTCTCTT
TGCTCTCATT CACCGACACA AGTTCCCAGT TTCTGGCAAG CATCCTCTTC
TGAAACAGCA GTAGCAGCGT TTAAAGGGAA GTTTATT

So, I believe the protein would start there.
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