Now showing items 11-20 of 31
Dissociation of cyclic AMP accumulation from that of luteinizing hormone (LH) release in response to gonadotropin releasing hormone (GnRH) and cholera enterotoxin
(Elsevier, 1979-03-15)
Anterior hemipituitaries from female rats were incubated in Krebs Ringer bicarbonate buffer, pH 7.2 containing 2 mg/ml of glucose in the absence and in the presence of GnRH or cholera enterotoxin. Following this incubation, ...
Feedforward inhibition in biosynthetic pathways: inhibition of the aminoacyl-tRNA synthetase by intermediates of the pathway
(Elsevier, 1979-04-21)
The stability of an amino acid biosynthetic pathway controlled by end-product inhibition is significantly improved if, in addition, the corresponding aminoacyl-tRNA synthetase is inhibited by an intermediate in the pathway. ...
G M1 -gangliosidosis: Chromosome 3 assignment of the β -galactosidase-A gene ( β GAL A )
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1979-03)
The structural gene (βGAL A ) coding for lysosomal β-galactosidase- A (EC 3.2.1.23) has been assigned to human chromosome 3 using man-mouse somatic cell hybrids. Human β-galactosidase-A was identified in cell hybrids with ...
Development of a photosynthesis model with an emphasis on ecological applications
(Springer-Verlag, 1979-08)
A physiologically based steady-state model of whole leaf photosynthesis (WHOLEPHOT) is detailed which describes the functional dependence of net photosynthesis in C 3 leaves on [CO 2 ], [O 2 ], incident radiant flux (PhAR), ...
The cell free synthesis of bovine lutropin [beta] subunit
(Elsevier, 1979-10-29)
RNA prepared from bovine pituitary glands directs the synthesis of trichloroacetic acid-insoluble proteins in the wheat germ cell-free system. Antisera specific to bovine lutropin (LH) beta subunit precipitated a product ...
A method for the preparation of heavy-atom derivatives of yeast cytochrome c peroxidase
(Elsevier, 1979-01-15)
This Letter describes a strategy for preparation of heavy-atom derivatives which has succeeded with yeast cytochrome c peroxidase and which may be useful for other crystalline proteins. Transfer of the crystals from ...
Effects of plant diversity and time of colonization on an herbivore-plant interaction
(Springer-Verlag, 1979-01)
Experimental field plantings showed that plant diversity strongly affected the population dynamics of a specialist herbivore, the striped cucumber beetle, Acalymma vittata (Fab.) (Coleoptera: Chrysomelidae). Population ...
Fluoride inhibition in patients with atypical dibucaine-resistant plasmacholinesterase
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1979-12)
The fluoride numbers (FN) of 144 individuals referred to our laboratory for dibucaine number (DN) determinations because of prolonged apnea following succinylcholine in the probands or relatives were determined by our new ...
Cysteine as a system-specific substrate for transport system in rat hepatocytes
(Elsevier, 1979-05-28)
The rapid transport of -cysteine into isolated rat hepatocytes escapes detectable inhibition by 2-(methylamino)-isobutyric acid at levels up to 50 mM. The system transporting cysteine instead is convincingly similar to the ...
Effect of constant and fluctuating temperatures on resting and active oxygen consumption of toads, Bufo boreas
(Springer-Verlag, 1979-01)
The relations of standard and active rates of oxygen consumption to body temperature (T b ) were tested in montane Bufo b. boreas and lowland Bufo boreas halophilus acclimated to constant T b of 10, 20, or 30° C or to a ...