CGSC Strain#: 256
Strain Designation: AB256     
Source of Strain: E.A. Adelberg
Sex: F'
Episome/Plasmid: F3
Plasmid Markers/Mutations: Chromosomal Markers: galK2(Oc)
,
xylA5,
mtl-1,
thiE1Strain Comments: - galK2(Oc)-- is a GAA(glu) to TAA(ochre) mutation, residue 134. Oller et al.1993. Apparently non-suppressible, since all revertants found were at the ochre site.
- galK2(Oc) was formerly called gal2
- thiE1 was formerly called thi-1
- Oc = ochre(UAA) mutation
References: - PITTARD, J, JS LOUTIT, EA ADELBERG 1963. GENE TRANSFER BY F' STRAINS OF ESCHERICHIA COLI K-12. I. DELAY IN INITIATION OF CHROMOSOME TRANSFER. J. Bacteriol. 85:1394-401.