CGSC Strain#: 5271
Strain Designation: TKS4     
Source of Strain: T.K. Sundaram
Sex: F-
Chromosomal Markers: lac-64,
glnX44(AS)
,
pncA1,
his-89,
nadB7,
rpsL182(strR)
Strain Comments: - This is an EMS-induced lac- derivative of the strain described as W3899 nic- nam-11 his- in reference below.
- glnX44(AS)-- Mutation is a C to T transition at nucleotide 34 (3rd position of the anticodon)
- pncA1-- : nicotinamide requirement
- glnX44(AS) was formerly called su+II
- glnX44(AS) was formerly called supE44
- glnX44(AS) was formerly called glnV44
- pncA1 was formerly called nam-11
- AS = amber(UAG) suppressor
- strR = streptomycin resist.
References: - Dickinson, E.S., T.K. Sundaram 1970. Chromosomal location of a gene defining nicotinamide deamidase in Escherichia coli. J.Bacteriol. 101:1090-1091