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The Linus Pauling Papers

Letter from Linus Pauling to Max F. Perutz pdf (60,466 Bytes) transcript of pdf
Letter from Linus Pauling to Max F. Perutz
Number of Image Pages:
1 (60,466 Bytes)
1951-08-29 (August 29, 1951)
Pauling, Linus
Perutz, Max F.
Original Repository: Oregon State University. Library. Ava Helen and Linus Pauling Papers
Reproduced with permission of the Ava Helen and Linus Pauling Papers. Oregon State University Library.
Exhibit Categories:
The Search for the Molecular Helix
Two Nobel Prizes
Unique Identifier:
Document Type:
Letters (correspondence)
Physical Condition:
August 29, 1951
Dear Dr. Perutz:
I thank you for your letter of August 17. Professor Corey and I have been very pleased that you should have found the 1.5 spacing in fibrous proteins of the a-keratin type. In one of our papers we had mentioned it, as observed by MacArthur for porcupine quill tip. Your recognition of the presence of this reflection as a rather reliable indication of the presence of the 3.7-residue helix seems to me to be very important.
I am not at all sure that this helix is present in feather rachis. However, Professor Corey and I have pointed out in a short article that will appear in Nature that the absence of this reflection does not eliminate this helix, since the two chains proposed for the unit could be just a phase with one another.
Professor Corey and I have found some new sheet structures--two new pleated sheets, which will be described in Proceedings of the National Academy of Sciences, and another sheet of a new type, which we call a rippled sheet.
Sincerely yours,
Linus Pauling
P.S. We enjoyed Kendrew's visit very much. I wish that you could come to see us sometime.
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