Now showing items 21-30 of 59
The role of coxI -associated repeated sequences in plant mitochondrial DNA rearrangements and radish cytoplasmic male sterility
(Springer-Verlag, 1991-03)
The gene coxI , encoding subunit I of mitochondrial cytochrome c oxidase, has been characterized from the normal (fertile) and Ogura (male-sterile) cytoplasms of radish to determine if a previously identified mitochondrial ...
Inactivation of macrophage nitric oxide synthase activity by NG-Methyl-L-arginine
(Elsevier, 1991-06-14)
[middle dot]N=O synthase catalyzes the oxidation of one of the two chemically equivalent guanido nitrogens of L-arginine to nitric oxide ([middle dot]N=O). NG-Methyl-L-arginine has been previously characterized as a potent ...
Chronic ethanol consumption depresses hypothalamic-pituitary-adrenal function in aged rats
(Elsevier, 1991)
In separate experiments, nine (n=20) and fifteen (n=12) month old rats were treated with either 6% ethanol or 12% sucrose (to balance caloric intake) in the drinking water to examine the effect of chronic ethanol consumption ...
Patterns of mitochondrial DNA instability in Brassica campestris cultured cells
(Kluwer Academic Publishers; Springer Science+Business Media, 1991-01)
We previously showed that the mitochondrial DNA (mtDNA) of a Brassica campestris callus culture had undergone extensive rearrangements (i.e. large inversions and a duplication) relative to DNA of the control plant [54]. ...
High-density photoautotrophic algal cultures: Design, construction, and operation of a novel photobioreactor system
(Wiley Subscription Services, Inc., A Wiley Company, 1991-12-05)
A photobioreactor system has been designed, constructed and implemented to achieve high photosynthetic rates in high-density photoautotrophic algal cell suspensions. This unit is designed for efficient oxygen and biomass ...
A new method for building protein conformations from sequence alignments with homologues of known structure
(Elsevier, 1991-01-05)
We describe a largely automatic procedure for building protein structures from sequence alignments with homologues of known structure. This procedure uses simple rules by which multiple sequence alignments can be translated ...
Production of monoclonal antibody using free-suspended and immobilized hybridoma cells: Effect of serum
(Wiley Subscription Services, Inc., A Wiley Company, 1991-10-20)
The effect of serum on cell growth and monoclonal antibody (MAb) productivity was studied in a repeated fedbatch mode using both free-suspended and immobilized S3H5/Γ2bA2 hybridoma cells. In the suspension culture, serum ...
Nerve growth factor binds to the 140 kd trk proto-oncogene product and stimulates its association with the src homology domain of phospholipase C [gamma]1
(Elsevier, 1991-08-30)
The cellular actions of nerve growth factor (NGF) involve regulation of protein phosphorylation. In PC-12 pheochromocytoma cells, exposure of [125I]NGF followed by crosslinking indicates that the ligand binds to two discreet ...
Use of coimmobilized biological systems to degrade toxic organic compounds
(Wiley Subscription Services, Inc., A Wiley Company, 1991-07)
The concept of coimmobilizing cell mass (and/or enzyme) and adsorbent in a hydrogel matrix for biodegradation of toxic organic chemicals was introduced. Under defined experimental conditions, the coimmobilized system using ...