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Title:
PYRROLYSYL-TRNA SYNTHETASE
Document Type and Number:
WIPO Patent Application WO/2020/045656
Kind Code:
A1
Abstract:
Obtained is: a method for efficiently producing a polypeptide containing a non-naturally-occurring amino acid; a method for introducing a non-naturally-occurring amino acid into a polypeptide; a method for producing tRNA having a non-naturally-occurring amino acid bonded thereto; a non-naturally-occurring amino acid introduction system; a material for use in these methods; or the like. A method for producing a polypeptide containing a non-naturally-occurring amino acid, which includes a step of bringing PylRS from an organism belonging to the order Methanomassiliicoccales or Thermoplasmatales into contact with the non-naturally-occurring amino acid, is used, the method including an introduction step selected from (a) a step of introducing the non-naturally-occurring amino acid into the polypeptide with higher efficiency compared with the case where a cell-free protein synthesis system using PylRS from Methanosarcina mazei (MmPylRS) is used or (b) a step of introducing the non-naturally-occurring amino acid into the polypeptide with higher efficiency compared with the case where an Escherichia coli protein synthesis system using a vector carrying a gene for the PylRS that is under the regulation by a glmS promoter is used and the case where an Escherichia coli protein synthesis system using a vector carrying a gene for the PylRS that is under the regulation by a glnS promoter is used. Alternatively, a non-naturally-occurring amino acid introduction system containing PylRS from an organism belonging to the order Methanomassiliicoccales or Thermoplasmatales at a high concentration is used.

Inventors:
SAKAMOTO KENSAKU (JP)
YAMAGUCHI ATSUSHI (JP)
KIMURA FUMIE (JP)
YOKOYAMA SHIGEYUKI (JP)
YANAGISAWA TATSUO (JP)
SEKI EIKO (JP)
KURATANI MITSUO (JP)
Application Number:
PCT/JP2019/034233
Publication Date:
March 05, 2020
Filing Date:
August 30, 2019
Export Citation:
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Assignee:
RIKEN (JP)
International Classes:
C12P21/00; C12N1/15; C12N1/19; C12N1/21; C12N5/10; C12N15/52; C12P21/02; C12N9/00
Domestic Patent References:
WO2010083148A12010-07-22
WO2009038195A12009-03-26
WO2009066761A12009-05-28
WO2009038195A12009-03-26
WO2017030156A12017-02-23
Foreign References:
JP2016534099A2016-11-04
JP2012514979A2012-07-05
Other References:
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See also references of EP 3845661A4
Attorney, Agent or Firm:
SK INTELLECTUAL PROPERTY LAW FIRM et al. (JP)
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