Difference between two cell strain

Ashok Aiyar aiyar at ebv.oncology.wisc.edu
Sat Nov 27 09:52:04 EST 1999

On Sat, 27 Nov 1999 12:46:15 +0800,
    Terry Lau (tcklau at hotmail.com) wrote:
>Does anyone know the difference between XL1-Blue and XL1-Blue-MR???
>Thanks in advance!

The genotypes are available on Stratagene's website.  An appropriate
URL would be http://www.stratagene.com/manuals/200294.pdf

Briefly, XL1-Blue is F-positive, while XL1-Blue-MR lacks mcrABC, mrr,
and is also F-negative. 

Ashok Aiyar
Department of Microbiology-Immunology
Northwestern University Medical School

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