CGSC Strain#: 4912
Strain Designation: NP21      Source of Strain: F.C. Neidhardt
Other Designations: PFP-10
Sex: F+ Chromosomal Markers: pheS11
Strain Comments:

• The derivation of the parental strain, NP2, is not fully known.

References:

• Fangman, W.L., F.C. Neidhardt 1964. Demonstration of an altered aminoacyl ribonucleic acid synthetase in a mutant of Escherichia coli. J.Biol.Chem. 239:1839-1843
• Fangman, WL, G Nass, FC Neidhardt 1965. Immunological and chemical studies of phenylalanyl sRNA synthetase from Escherichia coli. J. Mol. Biol. 13(1):202-19.
• Nass, G 1967. Regulation of histidine biosynthetic enzymes in a mutant of Escherichia coli with an altered histidyl-tRNA synthetase. Mol. Gen. Genet. 100(2):216-24.