Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Ujjala DasGupta"'
Publikováno v:
Vaccine. 12:833-840
It is now accepted that oral killed typhoid vaccines are not effective at inducing protective anti-typhoid immunity. It is not known whether oral killed Salmonella can function as an effective carrier of other antigens to the immune system. In order
Publikováno v:
Vaccine. 12:359-364
A clinical isolate of Vibrio cholerae 01 was identified which did not possess the heat-labile (CT), the heat-stable (ST) or the zonula occludens (Zot) toxin genes. Rabbit ileal loop assays showed that no other CT-like toxin was produced by this strai
Publikováno v:
Gene. 105:107-111
The lack of an efficient transformation system in Vibrio cholerae was a handicap in the genetic manipulation of this important human pathogen. Since V. cholerae cells secrete DNases, this may interfere with the uptake of DNA. The present report descr
Publikováno v:
Vaccine. 10:286
Publikováno v:
Gene. 34:17-26
The IS50 elements, which are present as inverted repeats in the kanamycin-resistance transposon, Tn5, can move in unison carrying with them any interstitial DNA segment. In consequence, DNA molecules such as a lambda::Tn5 phage genome are composed of
Publikováno v:
Genetics. 115:41-49
The specificity of deletion formation was studied using tests involving reversion of palindromic insertion mutations. Insertions of a Tn5-related transposon at 13 sites in the ampicillin-resistance (amp) gene of plasmid pBR322 were shortened to a nes
Autor:
Ujjala DasGupta, Sudhamoy Ghosh
Publikováno v:
FEBS Letters. (1):60-64
Publikováno v:
Biochemical and biophysical research communications. 153(3)
Escherichia coli strain N100 has been mutagenized by transposon mutagenesis and mutants with a cell surface leaky phenotype have been isolated. The mutant designated as E. coli N100::Tn5 excreted periplasmic proteins like ribonuclease and alkaline ph