CGSC Strain#: 6449
Strain Designation: χ2470      Source of Strain: R. Curtiss
Other Designations: chi2470
Sex: F- Chromosomal Markers: glnV42(AS), pyrF111, cdd-7, pyrG77, thyA702, cycA1, deoC8
Strain Comments:

• thyA702-- Strains with this marker must have their medium supplemented with thymine (25ug/ml). This is true even for rich medium such as LB. Otherwise thymine starvation can lead to thymineless death.
• glnV42(AS) was formerly called supE42
• AS = amber(UAG) suppressor

References:

• Maturin, LJ, R Curtiss 1981. Role of ribonucleic acid synthesis in conjugational transfer of chromosomal and plasmid deoxyribonucleic acids. J. Bacteriol. 146(2):552-63.