Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Pivot Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Target Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Query: EC:3.1.30.2 (
endonuclease
)
18,621
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
That portion of the Escherichia coli chromosome carried by a number of lambda transducing phages, all of which carry the gua operon, was mapped using restriction endonucleases. The DNA from one of these transducing phages was subcloned onto pBR322. We have identified two recombinant plasmids which carry the Escherichia coli gene hisS, the structural gene for
histidyl-tRNA synthetase
. The two plasmids, pSE301 and pSE401, have in common a 3,540 bp fragment of E. coli DNA which is bounded by BglII and SalI restriction
endonuclease
recognition sites. Strains carrying these plasmids overproduce
histidyl-tRNA synthetase
20 to 30 fold. The growth rate of these strains is not affected although the histidine biosynthetic enzymes are derepressed. This derepression seems to be in addition to that caused by introduction of a hisT mutation on the chromosome.
...
PMID:Strains of Escherichia coli carrying the structural gene for histidyl-tRNA synthetase on a high copy-number plasmid. 646 Jan 51
