VETERANS ADMINISTRATION
HOSPITAL
ALBANY, NEW YORK

July 23, 1959

 

YOUR FILE REFERENCE:

INREPLY REFERTO: 5247/172

Prof, Joshua Lederberg
Department of Ganetics
Stanford University
Stanford, California

Dear Josh:

It was good to hear that you and your group have settled at Stanford,
I really appreciate your invitation to visit you. I am sure that it
will be most fruitful from every angle I can think of, Unfortunately,
being myself in the same poattion of organizing a new laboratory I
find it would be very hard to do so in the near future, Perhaps when
Raquelita will be here in the Fall we could arrange something,

I have received from Larry Morse an almost complete series of Gal
mutants which I will test for galactose permease, The only one
missing is Gal... I cannot answer your question if the lactose-
negative charaséter of the Lac, mutants is due to the defect in
galactose permease for the sittple reason that I. haven't been able
to get my hands on such a mutant, I am waiting anxiously for a
culture of this mutant and for the other one, Gal,, and Lac, or

Lac, which you said you might get,

I agree that your hypothesis of galactose as an internal inducer still
stands the facts (although it is weakening with time) and it will be
nice to test the mutant deficient in the epimerase, Does such a bug
exist? I have looked at existing papers and I haven't found it,

Py.

Boris Rotman

With best regards for Esther and you,

An inquiry by or concerning an ex-service man or woman should, if possible, give veteran's name and file number, whether
C, XC, K, N, V, H, RH, RS, or loan number. If such number is unknown, service or serial number should be given.