Biosafety classification is based on U.S. Public Health Service Guidelines, it is the responsibility of the customer to ensure that their facilities comply with biosafety regulations for their own country.
Product Format
freeze-dried
Preceptrol®
no
Type Strain
no
Comments
Ew-hcr+ trp-
Parent of ATCC 23233
Uv and X-ray resistant; requires tryptophan; able to repair UV-damaged DNA.
Medium
ATCC® Medium 3: Nutrient agar or nutrient broth
Growth Conditions
Temperature: 37.0°C
Name of Depositor
RF Hill
Chain of Custody
ATCC <<--RF Hill<<--E. Witkin
References
Hill RF. Ultraviolet-induced lethality and reversion to prototrophy in Escherichia coli strains with normal and reduced dark repair ability. Photochem. Photobiol. 4: 563-568, 1965. PubMed: 5334119
