There are 20 amino acids that create the proteins required for life on our planet — and scientists have now found exactly 14 ...

Paper presented on July 10, 1952. See, for example, the exhaustive review by Bltchie, P. D., “Advances in Enzymol.”, 7, 65 (1947). Henderson, G. M., and Rule, H ...

From the amount of yield, this is presumed to be a mixture of meso and racemic isomers. And then, other results of analyses for the NMR spectra were as follows. The H6a proton (i.e., methylene ...