No coin nor oath required. For personal study only.
Gamma-globulins do not crystallize. This in- dicates that they are heterogeneous, as pointed out by Dr. Putnam.
I agree very much with what Dr. Spiegelman said. When I spoke of heterogeneity by site of formation, I did not want to limit that to different organs. Different subcellular sites may just as well be responsible for the formation of hcterogenous proteins.
I want to bring up another point vcry early in the meeting -one rclated to Dr. Haurowitz' prcscntationand this is the Pauling-Corey helix. Unquestionably, the unstrctched and stretched forms of keratin have, respectively, the a-helix and pleated sheet structures of Pauling and Corey. Collagen, on the other hand, has a structure that has not yct been predicted, but that is probably quite simple. S o doubt it will be necessary to abandon the idea of tlic structural equivalence of the amino acid residues ; there is no compulsion on nature to construct proteins only according to this principle.
๐ SIMILAR VOLUMES
In this sub-session, the papers presented by Jan Lorincik, Tom Janssens, and Kiichiro Uchino were discussed.