Now showing items 81-90 of 1406
Localization of sequences related to the human RAD6 DNA repair gene on mouse Chromosomes 11 and 13
(Springer-Verlag, 1995-04)
Cell proliferation-associated expression of a recently evolved isozyme of triosephosphate isomerase
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1985-04)
An electrophoretically unique, thermolabile isozyme of triosephosphate isomerase (TPI; EC 5.3.1.1) accounts for 10–30% of the enzymatic activity in a range of mitotically active human cells and tissues. This type 2 form ...
Principle of superposition-free memory
(Elsevier, 1977-07-21)
The requirement that memory be superposition-free imposes a restrictive condition on the structure of neural models. A simple model which satisfies this condition consists of two levels of neurons, with primary level neurons ...
Isolation of plasma membranes from bovine corpus luteum possessing adenylate cyclase, 125I-hCG binding and Na---K-ATPase activities
(Elsevier, 1974-01-23)
Plasma membranes from bovine corpora lutea have been purified by sucrose density gradient centrifugation. The purified membranes, in addition to binding 125I-hCG, also possess hCG-stimulated adenylate cyclase and Na---K-ATPase. ...
Localization of thyrotropin-releasing hormone receptor and thyrotroph embryonic factor on mouse Chromosome 15
(Springer-Verlag; Springer-Verlag New York, Inc., 1993-10)
The effect of mean and variance in resource supply on survival of annuals from Mediterranean and desert environments
(Springer-Verlag, 2004-10)
Resource availability is often characterized by mean annual amounts, while ignoring the spatial variation within habitats and the temporal variation within a year. Yet, temporal and spatial variation may be especially ...
Receptor-related interactions of opiates with PGE-induced adneylate cyclase in brain
(Elsevier, 2006-04-07)
The inhibition by opiates of the PGE2-induced formation of cAMP in slices from rat brain striatum was investigated. A maximal, 3.5-fold increase over the basal level of cAMP was obtained with an EC50 for PGE2 of 3 [mu]M. ...
The mechanism of amine inhibition of the photosynthetic oxygen evolving complex : Amines displace functional chloride from a ligand site on manganese
(Elsevier, 1983-10-17)
Amines inhibit photosynthetic oxygen evolution by binding to manganese in the oxygen evolving complex. This inhibition is more effective if chloride is absent. Steady-state kinetic analyses show that ammonia and chloride ...
Role of isosafrole as complexing agent and inducer of P-450LM4 in rabbit liver microsomes
(Elsevier, 1982-09-16)
Isosafrole serves as an excellent inducing agent in rabbits for P-450LM4, the same isozyme as that which is induced by 3-methylcholanthrene and 5,6-benzoflavone. Since the isosafrole adduct formed with isozyme 4 is unstable, ...
Immunological comparison of the usual and atypical human serum cholinesterase phenotypes
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1983-02)
Antiserum prepared against highly purified usual human serum cholinesterase (the most common phenotype) cross-reacted identically with the atypical serum cholinesterase. The level of circulating atypical enzyme protein, ...