A solitary report in the literature suggests that determination of phosphohexose isomerase (PHI; glucosephosphate isomerase, EC 5.3.1.9) activity in aqueous humor and serum may be a useful adjunct in the diagnosis f retinoblastoma (1). The aqueous humor/serum PHI ratio of 20 patients with retinoblastoma was compared with that for eight “controls” having intraocular diseases other than retinobla...

Alcohol dehydrogenase AD L-Iditol dehydrogenase ID (a) Lactate dehydrogenase LD Hydroxybutyrate dehydrogenase HBD Malate dehydrogenase MD Isocitrate dehydrogenase (NADP+)ICD Phosphogluconate dehydrogenase (decarboxylating) PGD Glucose-6-phosphatedehydrogenaseGPD (b) Glyceraldehyde-phosphate dehydrogenase GAD (c) Glutamate dehydrogenase (NAD(P)+) GMD Glutathione reductase (NAD(P)H) GTR Catalase ...

Clones of 32 strains of Trichomonas vaginalis isolated from patients attending a venereal diseases clinic were compared among themselves and with authentic Pentatrichomonas hominis on the basis of their isoenzyme patterns for eight enzymes by thin-layer starch-gel electrophoresis. The enzymes examined were: glucose phosphate isomerase (GPI); phosphoglucomutase (PGM); malic enzyme (NADP+) (ME); ...

The polymorphic phosphoglucomutase (PGM) and glucose-6-phosphate dehydrogenase (G6PD) loci have been studied in parallel to experimental work on the phosphoglucose isomerase (PGI) polymorphism in Colias butterflies. PGI, PGM and G6PD are also autosomal in Colias. PGM and G6PD are loosely linked (and represent the first identified autosomal linkage group in Colias); they assort independently fro...

Moulder, James W. (University of Chicago, Chicago, Ill.), Dorothy L. Grisso, and Robert R. Brubaker. Enzymes of glucose catabolism in a member of the psittacosis group. J. Bacteriol. 89:810-812. 1965.-Extracts of preparations of the agent of meningopneumonitis made from infected chick-embryo allantoic fluid contained three enzymes of the pentose pathway of glucose degradation: glucose-6-phospha...

Inheritance of alleles at 29 electrophoretically detected protein loci and one pigment locus (albinism) was analyzed in Xenopus laevis by backcrossing multiply heterozygous individuals generated by intersubspecies hybridization. Pairwise linkage tests revealed eight classical linkage groups. These groups have been provisionally numbered from 1 to 8 in an arbitrarily chosen order. Linkage group ...

Self-compatible gametes and short-lived larvae in the sessile solitary ascidians CoreZla inflnta Huntsman and Chelyosoma productum Stimpson suggest that field populations might be characterized by limited dispersal and self-fertilization. Because C. inflata in the laboratory spawns gametes into its atrium and retains offspring until they are competent to settle, it was expected to show an almos...

To investigate the features of erythrocyte metabolism in extremely immature infants, we assayed 21 enzyme activities and glutathione level in cord erythrocytes from 28 extremely low-birth-weight infants (ELBWI; defined as birth weight <1,000 g). The results were compared with those from normal adults and non-neonatal reticulocyte-rich controls. Statistical analysis revealed that activities of s...

Parrots of the genus Amazona are among the most threatened species of the Order Pscittaciformes. This work describes allozyme polymorphisms in three Amazon parrot species--the Blue-fronted Amazon (Amazona aestiva), the Orange-winged Amazon (Amazona amazonica), and the Festive Amazon (Amazona festiva) -, and provides useful data for the evaluation of their genetic variability. We electrophoretic...