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The Maxine Singer Papers

Letter from Severo Ochoa to Maxine Singer pdf (51,322 Bytes) transcript of pdf
Letter from Severo Ochoa to Maxine Singer
Number of Image Pages:
1 (51,322 Bytes)
1957-11-11 (November 11, 1957)
Ochoa, Severo
New York University. College of Medicine
Singer, Maxine
Original Repository: Library of Congress. Maxine Singer Papers
Courtesy of the Library of Congress.
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Medical Subject Headings (MeSH):
Polyribonucleotide Nucleotidyltransferase
Exhibit Category:
Nucleic Acids, the Genetic Code, and Transposable Genetic Elements: A Life in Research
Box Number: 1
Folder Number: 1
Unique Identifier:
Document Type:
Letters (correspondence)
Physical Condition:
Series: Correspondence, 1955-2004, n.d.
SubSeries: Chronological
Folder: 1955 November-1957 December
November 11, 1957
Dear Maxine:
Thank you very much indeed for the slides and the copy of your talk to the ACS meetings in September. Although I had read the abstract I certainly enjoyed reading the full talk with the beautiful slides. This will help me very much in my lectures on polynucleotide phosphorylase. The priming story would be very incomplete without the beautiful work that you people did.
Regarding the preparation of polynucleotide phosphorylase, we are still bogged down trying to get once more good active extracts and ammonium sulfate fractions therefrom. We do not know exactly where the trouble lies but in the past few months we haven't had much luck and have gotten preparations of low specific activity unsuitable for the further steps. I hope we shall be able to clear this up in the near future and, once we are ready to go through with a preparation, I will let you know so that you can come over and spend a couple of weeks with us. It will be a pleasure to have you around.
With best regards,
Sincerely yours,
Severo Ochoa
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