Difference between revisions of "Part:BBa K1722004"

Revision as of 04:04, 3 September 2015

This is a kind of aminoacyl-tRNA(aa-tRNA).

This is a kind of aminoacyl-tRNA, which has a different structure compared with classic tRNA. The tRNA can only carry a specific amino acid, which is a kind of unnatural amino acids. It has special anticodons(CUA),which can identify the termination codon(UAG), and carry the unnatural amino acid into the polypeptide chain. So that the tRNA that charges the unnatural amino acid can pair with the amber stop codon UAG. The aminoacyl-tRNA came from barchaebacteria, and it is generally applied to unnatural amino acid orthogonal system. In our project, the aminoacyl-tRNA was selected by directed evolution.

The structure of tRNA

Aminoacyl-tRNA carries only a specific amino acid---- Acetyllysine(ACK), which has a different secondary structure with the classical tRNA. The structure shows in Fig.1 adds in the protein by Semantic coding of termination codon(UAG)

Acetyllysine(ACK) & Lysine

Acetyllysine(ACK) is one of unnatural amino acid and only corresponds to a special aminoacyl-tRNA(tRNA). It can be added to the protein by Semantic coding of termination codon(UAG).

Sequence and Features

Assembly Compatibility:

10
COMPATIBLE WITH RFC[10]
12
COMPATIBLE WITH RFC[12]
21
COMPATIBLE WITH RFC[21]
23
COMPATIBLE WITH RFC[23]
25
COMPATIBLE WITH RFC[25]
1000
COMPATIBLE WITH RFC[1000]

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 <partinfo>BBa_K1722004 short</partinfo>
-This is a kind of aminoacyl-tRNA, which has a diffeent structure compared with classic tRNA.The tRNA can only carry a specific amino acid, and is non natural amino acids.It has special anticodons(CUA),which can identify the termination codon(UAG), and then adds the unnatural amino acid carried own into the polypeptide chain to.So that the position of the termination codon corresponds to the insertion of an unnatural amino acid, which allows the protein to continue to be translated.
+This is a kind of aminoacyl-tRNA, which has a different structure compared with classic tRNA. The tRNA can only carry a specific amino acid, which is a kind of unnatural amino acids. It has special anticodons(CUA),which can identify the termination codon(UAG), and carry the unnatural amino acid into the polypeptide chain. So that the tRNA that charges the unnatural amino acid can pair with the amber stop codon UAG.
-The aminoacyl-tRNA came from barchaebacteria,and it is generally applied to unnatural amino acid orthogonal system.
+The aminoacyl-tRNA came from barchaebacteria, and it is generally applied to unnatural amino acid orthogonal system.
 In our project, the aminoacyl-tRNA  was selected by directed evolution.
 ===The structure of tRNA===
-Aminoacyl-tRNA only carries a specific amino acid---- Acetyllysine(ACK),and compared with the classical tRNA has an unusual secondary structure.The structure shows in Fig.1.adds in the protein by Semantic coding of termination codon(UAG)
+Aminoacyl-tRNA carries only a specific amino acid---- Acetyllysine(ACK), which has a different secondary structure with the classical tRNA. The structure shows in Fig.1 adds in the protein by Semantic coding of termination codon(UAG)
 [[File:TRNA.png|300px|center]]
 ===Acetyllysine(ACK) & Lysine===