CGSC Strain#: 7238
Strain Designation: TA3515      Source of Strain: G.F.-L. Ames
Sex: F- Chromosomal Markers: λ^-, Δ(his-gnd)861, ackA202, hisJo-701
Strain Comments:

• These strains should be stored frozen because of the ack mutation (G.F-L.Ames).
• ackA202-- Strains with ack mutations should be stored frozen (G.F.-L.Ames). This allele was called ackA200 by Feng et al.(1992, see BW18499).
• hisJo-701-- is a regulatory region for the histidine utilization cluster, hisJ,P,M. Since physical mapping now places the transcr. order his J,M,P, it is presumably in hisJ region.
• Δ(his-gnd)861 was formerly called his-461
• hisJo-701 was formerly called dhuA1

References:

• LeVine, S.M., F. Ardeshir, G.F.-L. Ames 1980. Isolation and characterization of acetate kinase and phosphotransacetylase mutants of Escherichia coli and Salmonella typhimurium. J.Bacteriol. 143:1081-1085