lambda DNA extraction

Alejandro Miguel Martin Dunn alejandro.martin at
Wed Mar 7 09:10:36 EST 2001

Hi David,

Check the titer of your culture, maybe you just don't have enough phage
DNA to start with.
I don't have the proper figures at hand, but knowing lambda's genome
size, assuming a 1:1 ratio of pfu:actual packaged phage heads, etc. you
can easily estimate the minimum amount of phage you need.

Alejandro Martin
Centro de Ingenieria Genetica y Biotecnologia
PO Box 6162, C. Postal 10600
Ciudad Habana, CUBA
Tel: (53-7)216221, FAX: (53-7)214764

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>----- Original Message -----
>From: "david Huang" <daweihuang at>
>To: <methods at>
>Sent: Tuesday, March 06, 2001 8:18 PM
>Subject: lambda DNA extraction
>> I have tried to extract lambda DNA from lambda cDNA library 
>but failed
>> serval times. It seemed that what iI got was RNA. But I have 
>added Rnase A
>> What is the problems?What should I take cautions when 
>extracing lambda
>> DNA?Thanks a lot!
>> <>


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