Now showing items 31-39 of 39
Studies on the identity of the heme-binding cysteinyl residue in rabbit liver microsomal cytochrome P-450 isozyme 2
(Elsevier, 1985-04-16)
The reaction of purified rabbit liver microsomal P-450 isozyme 2 with 4,4'-dithiobis(2-nitrobenzoate) (DTNB) exhibits first order kinetics and results in the modification of a single thiol, but causes no net loss of the ...
Neuroendocrine regulation of luteinizing hormone and follicle stimulating hormone: A review
(Elsevier, 1985-01-14)
Since the pioneering studies of Everett, Sawyer and Markee (1) it has been generally accepted that the central nervous system (CNS) regulates the secretion of the pituitary gonadotropins, luteinizing hormone (LH) and ...
Bacillus subtilis contains multiple forms of somatostatin-like material
(Elsevier, 1985-03-29)
Extracts of B. subtilis contain somatostatin-like immunoactivity (1-20 pg per g wet weight cells). Two major forms were detected, one with reactivity in both N-and C- terminal immunoassays similar to somatostatin-28 and a ...
Chloroplast DNA and molecular phylogeny
(Wiley Subscription Services, Inc., A Wiley Company, 1985-06)
The small, relatively constant size and conservative evolution of chloroplast DNA (cpDNA) make it an ideal molecule for tracing the evolutionary history of plant species. At lower taxonomic levels, cpDNA variation is easily ...
Reproductive responses to varying food supply in a population of Darwin's finches: Clutch size, growth rates and hatching synchrony
(Springer-Verlag, 1985-06)
I show how food shortage affects reproduction in a population of Darwin's Medium Ground Finches, Geospiza fortis . Despite the common occurrence of starvation and absence of nest predation, hatching is typically nighly ...
The structures of the serine-linked sugar chains on human chorionic gonadotropin
(Elsevier, 1985-01-16)
The human chorionic gonadotropin beta-subunit tryptic COOH-terminal peptide (residues 123-145) which contains 3 serine-linked sugar chains was isolated. The sugar chains were cleaved by beta-elimination and then separated ...
Parallel inactivation of [alpha]2-adrenergic agonist binding and Ni by alkaline treatment
(Elsevier, 1985-11-18)
[alpha]2-Adrenergic receptor-mediated inhibition of adenylate cyclase requires the guanine nucleotide-binding protein, Ni. This protein may also be required for stabilization of high-affinity [alpha]2-adrenergic agonist ...
Analysis of gas exchange in seedlings of Acer saccharum : integration of field and laboratory studies
(Springer-Verlag, 1985-02)
In the field, photosynthesis of Acer saccharum seedlings was rarely light saturated, even though light saturation occurs at about 100 μmol quanta m -2 s -1 photosynthetic photon flux density (PPFD). PPFD during more than ...
Loss of calmodulin activity in cardiac sarcoplasmic reticulum after ischemia
(Elsevier, 1985-07-31)
Experiments were designed to evaluate whether cardiac ischemia affected the subcellular distribution of calmodulin activity. Major cellular fractions (nuclei, mitochondria, sarcoplasmic reticulum and cytosol) were isolated ...