Now showing items 11-20 of 49
Growth hormone directly alters glucose utilization in 3T3 adipocytes
(Elsevier, 1984-11-30)
Summary3T3-F442A adipocytes incubated in the presence of growth hormone (GH) showed a transient stimulation of the incorporation of [14C] glucose into cellular lipids, or production of 14CO2 in the first 4 hr. By 48 hr, a ...
An oligosaccharide of the O-linked type distinguishes the free from the combined form of hCG [alpha] subunit
(Elsevier, 1984-08-16)
JAR malignant trophoblast cells produce a free [alpha] subunit in addition to an [alpha] combined with [beta] subunit as hCG. The free [alpha] is larger by gel chromatography and SDS-PAGE than combined [alpha] and is unable ...
Quantitative characters under assortative mating: Gametic model
(Elsevier, 1984-06)
The gametic model introduced by Gimelfarb (1982, Theor. Pop. Biol.22, 324-366) is applied to investigating the dynamics, represented in the model by a second-order recurrence equation, the the variance of sex-independent ...
Receptor-mediated stimulation of brain GTPase by opiates in normal and dependent rats
(Elsevier, 1984-06-15)
In membranes from rat brain striatum, opiate agonists stimulated low-Km GTPase. Half-maximal enhancement of enzyme activity was obtained with 0.09 [mu]M morphine and 3.8 [mu]M levorphanol. This order of potency corresponded ...
Contrasting resource allocation patterns in Sedum lanceolatum Torr.: Biomass versus energy estimates
(Springer-Verlag, 1984-07)
Biomass determinations and microbomb calorimetry were used to assess resource allocation in Sedum lanceolatum Torr. between 2,257 and 3,726 m above sea level in the Front Range of the Rocky Mountains, Colorado, USA. In ...
Does microsomal glycerophosphate acyltransferase also catalyze the acylation of dihydroxyacetone phosphate?
(Elsevier, 1984-10-15)
Rat liver microsomal dihydroxyacetone phosphate acyltransferase, in contrast to the glycerophosphate acyltransferase, was found to be active at low pH (5.5), stable towards heat (55 [deg]C, 15 min) and trypsin (in the ...
Structure and rearrangements of rRNA genes in chloroplast DNA in two strains of Euglena gracilis
(Martinus Nijhoff/Dr. W. Junk Publishers; Springer Science+Business Media, 1984-05)
The organisation of the rRNA genes in the chloroplast genomes of two strains of Euglena gracilis were analyzed and compared. It was previously shown that the bacillaris strain contains three complete rrn (rRNA) operons (7) ...
The evolution of a highly variable sex chromosome in Gehyra purpurascens (Gekkonidae)
(Springer-Verlag, 1984-08)
A karyotypic survey of the gekkonid lizard Gehyra purpurascens revealed a distinctive sex chromosome system. G-banding showed that the Z Chromosome of males is derived from a tandem fusion of two acrocentric chromosomes ...
Stereochemical course of the biosynthesis of 1-aminocyclopropane-1-carboxylic acid. I. Role of the asymmetric sulfonium pole and the [alpha]-amino acid center
(Elsevier, 1984-05-31)
The substrate stereospecificity of 1-aminocyclopropane-1-carboxylic acid synthase, a pyridoxal phosphate-containing enzyme, from the pericarp tissue of (tomatoes) was studied using the various stereoisomers of -adenosylmethionine ...