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693991425(金币+15): 2011-06-08 08:28:38
silicare(EPI+1): 2011-06-09 12:36:48
1. I assume proteins of interest are latest, namely other people have little research, because you are going to sequence them.
2. you should get coresponding mRNAs according to those proteins, not DNA.
3. How can you obtain the mRNAs of interest? you should acquire short amino acid sequence of those proteins through mass spectrometry. according to those short amino acid sequence, you can design degenerate oligonucleotide primers, then use those primers to clone genes (cDNA) of interest.
4. clone plasmid construction and sequencing them, or directly sequencing those DNA fragments.
5. you can acquire the amino acid sequence of those proteins according to those DNA sequences through triplet codon.
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