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The Joshua Lederberg Papers

Title:
Letter from Norton D. Zinder to Joshua Lederberg Annotation pdf (97,492 Bytes) transcript of pdf
Letter from Norton D. Zinder to Joshua Lederberg
Description:
Item is handwritten.
Number of Image Pages:
2 (97,492 Bytes)
Date:
1959-07-03 (July 3, 1959)
Creator:
Zinder, Norton D.
Recipient:
Lederberg, Joshua
Rights:
Reproduced with permission of Norton D. Zinder.
Relation:
Lederberg Grouping: Correspondence C
Box Number: 14
Folder Number: 200
Unique Identifier:
BBGCUZ
Accession Number:
82
Document Type:
Letters (correspondence)
Language:
English
Format:
application/pdf
image/tif
Physical Condition:
Good
Series: Correspondence, 1935-2002
SubSeries: 1953-1960
Folder: Zinder, Norton D.
Transcript:
[written in different handwriting, Zinder]
July 3, 1959
Dear Josh,
There may yet be a manuscript on the transduction or lack of it between coli and Salmonella segments. The one detail that I still want to clear up is the role of the host controlled modification of P22 produced by the majority of the hybrids. This in itself restricts transduction. This effect is produced by a gene close to lac (the selective member), between it and T6. I have obtained some hybrids which don't modify, but I don't yet have all the genotypes to make the transduction story completely independent of the phage growth abilities. It is slow going as this gene is awfully close to lac.
More fun though, I have isolated Hfr Salmonella number 1 [mark to note, (derivative of SW-950)], and I think some others are on their way. It notes Hfr with Salmonella, but as the reciprocal case, is Lfr with F-coli. An interesting finding.
[END PAGE ONE]
[BEGIN PAGE TWO]
After the Madison lectures, I shall take some time off and should get this stuff in some sort of form, ready for publication.
It was good to have you and Esther with us. I shall make every effort to find a way to come West this fall.
Best wishes
Norton
Metadata Last Modified Date:
2006-12-07
Linked Data:
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Annotation by Joshua Lederberg:
KW:  host-controlled modification of P-22;

jl 6/24/00