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Published byNoel Cooper Modified over 6 years ago
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16 S ribosomal DNA TGACGTTACCCGCAGAAGAAGCACCGGCTAACTCCGTGAGCAGCCGCGGTAATACGGAGGGTGCAAGCGTTAATGGAATTACTGGGCGTAAAGCGCACGCAGGCGGTCTGTCAAGTCGGATGTGAAATCCCCGGGCTCAACCTGGGAACTGCATTCGAAACTGGCAGGCTTGAGTCTTGTAGAGGGGGGTAGAATTCCAGGTGTAGCGGTGAAATGCGTAGAGATCTGGAGGAATACCGGTGGCGAAGGCGGCCCCCTGGACAAAGACTGACGCTCAGGTGCGAAAGCGTGGGGAGCAAACAGGATTAGATACCCTGGTAGTCCCCTTGAACGCCGTAAACGATGTCGGCGTGGCTTCCGGAGCTAACGCGTTAAGTAGACCGCCTGGGGAGTACGGCCGCAAGGTTAAAACTCAAATGAATTGACGGGGGCACTTGGAGGTTGTGCTCCGCACAAGCGGTGGAGCATGT
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Dna fragment on agarose gel electrophoresis
For found gene DNA fragment –large fragment _middle fragment _ small fragment Migrate DNA depend on length Migrate protein depend on weight Base pare stander
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Dna fragment on agarose gel electrophoresis
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DNA migrate from cathode(-) to anode(+)
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Restriction enzymes
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Restriction enzymes Restriction enzymes
Restriction enzymes Cut specific sequence of DNA restriction enzymes two type Classic coloning Cut specific fragment of DNA with the same restriction enzyme. Legate them with each other by ligase enzyme Introduce vector on bacterial/yest cell by transformation Expressing the cloned gene (DNA fragment) PCR coloring Multiply a certain sequence of DNA on PCR
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Classic coloning
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There is about 3500 type of restriction enzymes that cut a specific sequence on DNA, each specific has its own restriction enzyme 1-Recognize site of restriction 2-Attach to site 3-Start its cat
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Restriction enzymes cut specific sequences of nucleotides forming cohesive(sticky end), that are easily to relegate (sealed) than blunt ends.
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Type of cut gene by restriction enzyme
sticky (cohesively) Less fragment More get gene Even blunted More fragment Less optain required gene Not cohesively
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some restriction enzyme as sticky end and blunt end
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some restriction enzyme as sticky end and blunt end
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How to isolation restriction enzyme??
1- microbe that produce enzyme 2- purification procedure media (isolation, replication) 3- DNA احتاج لعزل الانزيم 1- الميكروب الي ينتج الانزيم 2- الميديا الي انمي المكروب عليها 3- dnaالي اجرب اقطعه بلانزيم مالتي
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PCR coloring
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