HERALDRY AND BREWERS' HALL

The Heraldry of Medicine

"1 SWEAR by Apollo the Physician an(d Aesculapius and Hygieia an(d I'anacea and all the Gods an(l Goddesses that accor(ling to m) ability an(l ju(lgment w xviii keep this Oath aned Stipulation . . ." So runi the famous opening words of thle Hippocratic Oath, andl it is to the dlim misty days of ancient Grelek mythology that the Father of clinical Medicine himself directs us if we wvould find th...

Choline Kinase from Brewers’ Yeast

Choline kinase was purified approximately 300-fold, in 5% yield, from an autolysate of dried brewers’ yeast. A molecular weight of 67,000 was estimated using a Stokes radius of 33 A, as determined by Sephadex G-200 chromatography. An s~,,,~ of 4.8 S was obtained by sucrose density gradient centrifugation. Enzyme activity was diminished by sulfhydryl inhibitors and stabilized by the presence of ...

Pseudoporphyria associated with consumption of brewers' yeast.

A case of pseudoporphyria associated with excessive consumption of brewers ' yeast was studied. Detailed analysis of the yeast tablets by high performance liquid chromatography showed the presence of dicarboxylic deuteroporphyrin , mesoporphyrin, and protoporphyrin; coproporphyrin I and III isomers; and uroporphyrin I and III isomers. The faecal porphyrin concentration of the patient taking yea...

اثر هال (hall effect)

Isolation of Crystalline Phosphoglucose Isomerase from Brewers' Yeast.

In a program to elucidate the mechanism by which phosphoglucose isomerasel participates in the catalyzed isomerization between glucose 6-phosphate and fructose g-phosphate, isolation of the enzyme from several sources is pursued as the basis for quantitative studies of its protein nature. The comparative investigation of several heteroenzymes appears to be a valuable tool in identifying the str...