Difference between revisions of "Part:BBa K1976020"
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Latest revision as of 17:38, 23 October 2016

O-Methyl-L-tyrosine tRNA synthetase

This part encodes for the aminoacyl tRNA synthetase (aaRS) for the non-natural amino-acid O‑methyl‑l‑tyrosine.

Figure 1:Dimer of the Methanocaldococcus jannaschii tyrosyl-tRNA synthetase specific for O-methyl-l-tyrosine.


Usage

The aaRS is used in combination with the supressor tRNA (for example BBa_K1976023). Together they form a so called orthogonal pair used for non-natural amino acid incorporation at position of the amber stop codon. In this case the non-natural amino acid is O‑methyl‑l‑tyrosine.

Characteristics

Figure 2: SDS-PAGE of E. coli TOP10 culture lysate after 6 hours of constitutive expression of OMT-RS. Left: Cell lysate from E. coli TOP10 not transformed with any plasmid. Right: Cell lysate from E. coli TOP10 transformed with the constitutive OMT generator BBa_K1976022. The OMT-RS holds a molar mass of ~35 kDa.

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]


References
[1] L. Wang, J. Xie and P. G. Schultz, Expanding the genetic code, Annu Rev Biophys, vol. 35, pp. 225-249, 2006
[2] L. Wang, A. Brock, B. Herberich and P. G. Schultz, Expanding the genetic code of Escherichia coli, Science, vol. 292, pp.498-500, 2001
[3] C. C. Liu and P. G. Schultz, Adding new chemistries to the genetic code, Annu Rev Biochem, vol. 79, pp.413-444, 2010
[4] Y. Zhang, L. Wang, P. G. Schultz and I. A. Wilson, Crystal structures of apo wild-type M. jannaschii tyrosyl-tRNA synthetase (TyrRS) and an engineered TyrRS specific for O-methyl-L-tyrosine, Protein Sci, vol. 14, pp.1340-1349, 2005