Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=28842980
&cmd=llinks): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 215
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\28842980
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Biotechnol+Bioeng
2017 ; 114
(12
): 2828-2836
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Escherichia coli "TatExpress" strains super-secrete human growth hormone into the
bacterial periplasm by the Tat pathway
#MMPMID28842980
Browning DF
; Richards KL
; Peswani AR
; Roobol J
; Busby SJW
; Robinson C
Biotechnol Bioeng
2017[Dec]; 114
(12
): 2828-2836
PMID28842980
show ga
Numerous high-value proteins are secreted into the Escherichia coli periplasm by
the General Secretory (Sec) pathway, but Sec-based production chassis cannot
handle many potential target proteins. The Tat pathway offers a promising
alternative because it transports fully folded proteins; however, yields have
been too low for commercial use. To facilitate Tat export, we have engineered the
TatExpress series of super-secreting strains by introducing the strong inducible
bacterial promoter, ptac, upstream of the chromosomal tatABCD operon, to drive
its expression in E. coli strains commonly used by industry (e.g., W3110 and
BL21). This modification significantly improves the Tat-dependent secretion of
human growth hormone (hGH) into the bacterial periplasm, to the extent that
secreted hGH is the dominant periplasmic protein after only 1?hr induction.
TatExpress strains accumulate in excess of 30?mg?L(-1) periplasmic recombinant
hGH, even in shake flask cultures. A second target protein, an scFv, is also
shown to be exported at much higher rates in TatExpress strains.