STANFORD UNIVERSITY MEDICAL CENTER
STANFORD, CALIFORNIA 94805

DEPARTMENT OF BIOCHEMISTRY Area Code 415
STANFORD UNIVERSITY SCHOOL OF MEDICINE 497-6161

December 20, 1974

Dr. Daniel Nathans

Department of Microbiology

Johns Hopkins University Medical School
Baltimore, Maryland.

Dear Dan,

Iam presently writing up my work on the physical structure of the
genomes of the defectives that we cloned at Stanford. I would like to site
your work on this subject, but I have not yet seen any papers relating to it.
Would you therefore please send me a copy of the Brockman, Lee and Nathans
Cold Spring Harbor Symposium paper and any other preprints you may have
relating to this topic. Also, I am writing my thesis and would greatly
appreciate receiving any preprints you could send me concerned with SV40
mutants, complementation groups and their map locations, etc. and a copy
of your review article on restriction enzymes if it has already been written.

Thanks for sending me the BSC-40 cells. I still haven't straightened
out the difference we see in complementation between the B and C group mutants.
The one experiment I have tried so far with your cells failed because I obtained
too few plaques to get meaningful results - i.e., your cells give much lower
titers than my CVI1-P cells do.

Sincerely yours,
f

Mgt?

oO

    
 

a

é Janet Mertz