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  • Articles: DFG German National Licenses  (6)
  • 1995-1999  (6)
  • 1999  (6)
Source
  • Articles: DFG German National Licenses  (6)
Material
Years
  • 1995-1999  (6)
Year
  • 1
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Males heterozygous for the t-haplotype form of mouse chromosome 17 preferentially transmit the t-chromosome to their progeny. Several distorter/sterility loci carried on the t-haplotype together impair flagellar function in all spermatozoa whereas the responder, Tcr, rescues t-sperm but not ...
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Chester : International Union of Crystallography (IUCr)
    Journal of synchrotron radiation 6 (1999), S. 1076-1085 
    ISSN: 1600-5775
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: The paper describes the Rossendorf beamline (ROBL) built by the Forschungszentrum Rossendorf at the ESRF. ROBL comprises two different and independently operating experimental stations: a radiochemistry laboratory for X-ray absorption spectroscopy of non-sealed radioactive samples and a general purpose materials research station for X-ray diffraction and reflectometry mainly of thin films and interfaces modified by ion beam techniques.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1777
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract. Vacuolar proton-translocating ATPases (V-ATPase) are multisubunit enzyme complexes located in the membranes of eukaryotic cells regulating cytoplasmic pH. So far, nothing is known about the genomic organization and chromosomal location of the various subunit genes in higher eukaryotes. Here we describe the isolation and analysis of a cDNA coding for the 54- and 56-kDa porcine V-ATPase subunit alpha and beta isoforms. We have determined the genomic structure of the V-ATPase subunit gene spanning at least 62 kb on Chromosome (Chr) 4q14-q16. It consists of 14 exons with sizes ranging from 54 bp to 346 bp, with a non-coding first exon and an alternatively spliced seventh exon leading to two isoforms. The 5′ end of the V-ATPase cDNA was isolated by RACE-PCR. The V-ATPase alpha isoform mRNA, lacking the seventh exon, has an open reading frame of 1395 nucleotides encoding a hydrophilic protein of 465 amino acids with a calculated molecular mass of 54.2 kDa and a pI of 7.8, whereas the beta isoform has a length of 1449 nucleotides encoding a protein of 483 amino acids with a calculated molecular mass of 55.8 kDa. Amino acid and DNA sequence comparison revealed that the porcine V-ATPase subunit exhibits a significant homology to the VMA13 subunit of Saccharomyces cerevisiae V-ATPase complex and V-ATPase subunit of Caenorhabditis elegans.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-1777
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract. A variant form of mouse Chromosome (Chr) 17, the t-haplotype, contains several loci responsible for transmission ratio distortion in males. Sperm carrying the responder locus (Tcr) have a high probability of fertilizing eggs at the expense of wild-type sperm, provided that distorter loci (Tcd-1 to Tcd-5) are expressed during spermatogenesis. Tcr has been mapped to the Leh66b region within a maximum of 155 kb. In the search for genes in the genomic region Leh66EI, we have identified the mouse homolog of human ribosome S6 kinase 3 (RSK3) on cosmid DNA. The complete mouse Rsk3 gene is encoded in the region Leh66a of t-haplotypes and Leh66EI of the wild-type chromosome. It consists of at least 13 exons spanning over more than 120 kb. Rsk3 is expressed in embryos and in several adult organs including testis. Cosmids covering 100 kb of the Leh66b region or 120 kb of the Leh66a region were isolated. Rsk3 covers about 65 kb of the Leh66b region and appears to be incomplete at its 5′-end. A correlation of the physical map provided here with the genetic mapping of Tcr reported previously suggests that Tcr is most likely encoded within a fragment of 30 kb upstream or 20 kb downstream of Rsk3. These data will facilitate the isolation of Tcr, a prerequisite for understanding transmission ratio distortion in mouse.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-1777
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract. The proteolipid protein (PLP) gene codes for the most abundant protein in the central nervous system (CNS) myelin of higher vertebrates. Its function in the myelin sheath is not clear however, a series of point mutations have been shown to have devastating effects on the myelin. The structure of the PLP genes is highly conserved, comprising seven exons that code for an open reading frame of 277 amino acids. We determined a total of 20,957 bp of the porcine PLP gene and compared this sequence with the human PLP sequence. A very high similarity was detected between the non-coding regions of the PLP genes of human and pig, interrupted primarily by several transposable elements. The porcine PLP gene was assigned to the long arm of Chromosome (Chr) X (SSXq2.2-2.4). The analysis of the PLP transcripts revealed three transcription start sites within 160 bp upstream of the translation start codon. Functional studies of the 3′ region showed the use of several polyadenylation signals. Three main transcripts were detected in adult pigs in the range of 3200, 2400, and 1600 nucleotides with Northern blot analysis. The usage of an alternative splice site within exon 3 was shown.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Journal of radioanalytical and nuclear chemistry 241 (1999), S. 511-517 
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract With the background of uranium mine restoration the adsorption of radium on different kinds of sandstone, claystone and lime marl was studied as a function of such parameters as water composition, acidity, phase contact time and the concentration of radium, barium and sulfate by static butch experiments at the mine temperature of 14 °C.
    Type of Medium: Electronic Resource
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