Now showing items 21-30 of 698
Macronuclear persistence of sequences normally eliminated during development in Tetrahymena thermophila
(Wiley Subscription Services, Inc., A Wiley Company, 1985)
During conjugation in the ciliated protozoan, Tetrahymena thermophila , a somatic MAC-ronucleus develops from the germinal MICronucleus. Ten to 20 percent of the MIC genome is eliminated during this process. Three repetitive ...
Interaction of tRNA transcription factors with satellite I DNA from Xenopus laevis
(Elsevier, 1988-02-29)
A cloned repeat of Xenopus laevis satellite I DNA was tested for the ability to form stable complexes with tRNA transcription factors in vitro. In template exclusion studies, the satellite I DNA competed efficiently with ...
Synthesis of normal and variant human hypoxanthine-guanine phosphoribosyltransferase in Escherichia coli
(Elsevier, 1993-01-30)
Naturally occurring mutations in hypoxanthine-guanine phosphoribosyltransferase (HPRT) have been identified by amino acid sequencing, cDNA cloning, and direct nucleotide sequencing of PCR-amplified transcripts. To determine ...
Effects of hydroxyurea on CNV induction in the mouse germline
(John Wiley & Sons, Inc., 2018-10)
Nucleotide Sequence Analysis of 77.7 kb of the Human V[beta] T-Cell Receptor Gene Locus: Direct Primer-Walking Using Cosmid Template DNAs
(Elsevier, 1994-03-15)
The nucleotide sequence of 77.7 kb from the human T-cell receptor [beta]-chain locus was determined directly from three overlapping cosmid clones using the primer-walking approach. Computer-aided analyses of this sequence ...
Streptococcus faecalis sex pheromone (cAD1) response: Evidence that the peptide inhibitor excreted by pAD1-containing cells may be plasmid determined
(Elsevier, 1987-01)
Streptococcus faecalis strains harboring the conjugative plasmid pAD1 excrete a small peptide, iAD1, which inhibits the sex pheromone cAD1. Studies making use of the host strain Streptococcus faecium 9790, which normally ...
Rareâ variant association tests in longitudinal studies, with an application to the Multiâ Ethnic Study of Atherosclerosis (MESA)
(Wiley Periodicals, Inc.Springer New York, 2017-12)
Over the past few years, an increasing number of studies have identified rare variants that contribute to trait heritability. Due to the extreme rarity of some individual variants, geneâ based association tests have been ...
Early events of Bacillus anthracis germination identified by time-course quantitative proteomics
(WILEY-VCH Verlag, 2006-10)
Germination of Bacillus anthracis spores involves rehydration of the spore interior and rapid degradation of several of the protective layers, including the spore coat. Here, we examine the temporal changes that occur ...
Ornithine decarboxylase activity in retinal explants of goldfish undergoing optic nerve regeneration
(Elsevier, 1981-06)
Retinal explants cultured in the presence of fetal calf serum (FCS) exhibit an increase in the activity of ornithine decarboxylase which is maximal several hours after explanation. The measured activity of this enzyme is ...
Sister-chromatid exchange and chromosome aberrations for 4 aliphatic epoxides in mice
(Elsevier, 1989-10)
Sister-chromatid exchange (SCE) and chromosome aberrations (CA) in bone marrow cells were analyzed after in vivo exposure in mice to 4 aliphatic epoxides, namely 1-naphthyl glycidyl ether (NGE), 1-naphthyl propylene oxide ...