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  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    FEBS Letters 295 (1991), S. 141-145 
    ISSN: 0014-5793
    Keywords: Alternative splicing ; HTLV-I ; pX Protein ; rex Gene ; tax Gene
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 83 (1961), S. 2725-2728 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 1 (1922), S. 723-725 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Immunogenetics 31 (1990), S. 296-306 
    ISSN: 1432-1211
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Ly-5 (CD45) glycoproteins of the mouse, expressed by all or most hematopoietic cell lineages and specified by a single Ly-5 gene, range in size from isoform T200 of T cells (the smallest), in which exons 4, 5, and 6 are not represented, to isoform B220 of B cells (the largest), in which all three of these optional exons are represented. The main purpose of the present study, utilizing the polymerase chain reaction (PCR), was to ascertain whether known isoforms of intermediate size are generated by single or dual usage of optional exons 4, 5, and 6. Transcripts representing all eight isoforms predictable from varied use of three exons were observed among a diverse panel of nine B-cell tumors in culture, but there was no evident concordance with known contrasting differential features that distinguish members of the B-cell tumor panel. No two B tumors exhibited the same variety of transcripts and the relative quantities of transcripts expressed varied greatly from tumor to tumor. Cloning of B-cell tumors did not alter their distinctive transcript patterns. Separation methods (sodium dodecyl sulfate polyacrylamide gel electrophoresis; SDS-PAGE) did not suffice to segregate all corresponding expressed isoforms but did establish that transcripts representing usage of a single optional exon and of two optional exons were actually translated, which supports a provisional inference that all eight isoforms exist. The considerable diversity of B-cell transcript phenotypes was not seen among seven T-cell leukemias, two cytolytic T-cell lines, and three Th1 helper T-cell lines, all of which displayed a uniform phenotype comprising major expression of the T200 transcript (no optional exon) and minor expression of a transcript employing exon 5. However, a panel of five cloned Th2 T-cell lines, which represents a second and functionality different branch of the helper/inducer T-cell category, exhibited a characteristic transcript pattern which distinguished them from a panel of three Th1 T-cell lines. The major transcript in the Th2 lines was also T200, but the Th2 lines showed higher representation of transcript containing optional exons. A single Th2 clone expressed an unusual transcript suggesting a potential isoform not compounded simply by varied inclusion of the three identified optional exons. After activation of the helper T-cell lines with concanavalin A (Con A), expression of transcript containing optional exons appeared to decrease.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 551-552 (July 2007), p. 43-48 
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Institute of Space and Astronautical Science (ISAS/JAXA) in collaboration withMitsubishi Heavy Industries (MHI) has developed fuel and gas tanks for reaction control system andorbital control system of satellites; A tank is fabricated through welding of two thin, hemi-spherical orconical parts, which are fabricated by superplastic blow forming. Mass-productivity is not animportant factor but the forming precision and flexibiliry in the process are important for thisapplication. ISAS and MHI, therefore, developed a new blow-forming technique, which has highflexibility in terms of tank size because it requires a furnace but not a hot-press machine. Some typicalpropulsion tanks fabricated through this process are presented
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    International journal of immunogenetics 7 (1980), S. 0 
    ISSN: 1744-313X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: α-Galactosyltransferase which participates in the biosynthesis of blood group B substance was found in urine from group B and AB healthy persons of both secretors and non-secretors.The activity of α-galactosyltransferase in the urine of healthy variant Bm person was lower than that found in a normal group B person. This enzyme in urine of A1Bm persons must be much lower than that in normal AB persons. Its activity was not detected by the method of group O to group B transformation of erythrocytes.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    International journal of immunogenetics 7 (1980), S. 0 
    ISSN: 1744-313X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: α-L-Fucosyltransferases were demonstrated in human saliva which catalyze the transfer of L-fucose from GDP-L-[14C]-fucose to oligosaccharides from human milk. An α-(1→4)-L-fucosyltransferase that synthesizes lacto-N-fucopentaose II and lacto-N-difucohexaose I from lacto-N-tetraose and lacto-N-fucopentaose I, respectively, was detected in saliva samples of Le(a-b+) secretors and Le(a + b-) non-secretors in which Lea substance was secreted. This enzyme activity was demonstrable neither in saliva samples of Le(a-b-) secretors nor non-secretors. An α-(1→2)-L-fucosyltransferase, that synthesizes lacto-N-fucopentaose I from lacto-N-tetraose, was detected in saliva samples from Le(a-b+) secretors which secreted H and Leb substances and from Le(a-b-) secretors which secreted only H substance. An α-(1→3)-L-fucosyltransferase was present in all saliva samples of different ABO and Lewis blood groups, irrespective of their ABH secretor status of the donors. The fucosyltransferases in saliva were activated by Mn++ or Mg++ ions, and were inhibited by ATP, GTP and EDTA. They had a broad pH optimun between pH 5.0 and 6.5.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    International journal of immunogenetics 10 (1983), S. 0 
    ISSN: 1744-313X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: A β-galactoside α1 → 2 fucosyltransferase (H-enzyme) from human group O plasma which provides H blood group specificity to erythrocyte membranes has been purified approximately 22,000-fold by chromatography on DEAE-Sepharose CL-6B, GDP-hexanolamine-Sepharose 4B and SP-Sephadex C-50. The molecular weight of the H-enzyme was estimated to be 150,000 by gel filtration. Human group O erythrocyte membranes which had lost their H blood group activity by the action of α1 → 2 fucosidase were fucosylated by the transferase, and restored the H activity. Radioactive L-fucose appeared to be incorporated into glycolipid blood group substances of erythrocyte membranes. The activity of the α1 → 2 fucosyltransferase from human plasma, stomach mucosa, erythrocyte membranes and porcine stomach mucosa were specifically inhibited by the rabbit antiserum immunized with the preparation of human plasma H-enzyme. The anti-plasma H-enzyme antiserum did not inhibit the activities of α1 → 3 N-acetygalactosaminyltransferase (A-enzyme), α1 → 3 galactosyltransferase (B-enzyme), and β-N-acetylglucosaminide α1 → 3 and α1 → 4 fucosyltransferases from human plasma and stomach mucosa.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    International journal of immunogenetics 3 (1976), S. 0 
    ISSN: 1744-313X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Salivas from group B secretor or non-secretor, acting on O red cells in the presence of UDP-galactose, each converted them into B active cells, which were agglutinated against anti-B human serum (1:512) at the titre of thirty-two-fold, while secretor or non-secretor group AB salivas converted O red cells into B active cells, which were agglutinated by anti-B human serum (1:512) at the titre of eight- to sixteen-fold. The results indicate that the α-galactosyltransferases which participate in the biosynthesis of group B substance are secreted in group B or AB salivas of both secretor and non-secretor types as well as in their sera.Agglutinabilities of enzymatically converted B-active red cells against anti-B human serum indicate that α-galactosyltransferase activities of both serum and saliva from a weak B (Bw) individual, who has weak B antigens in red cells and saliva, were lower than those of normal group B.The α-galactosyltransferase activities in group Bm sera were lower than those of normal group B, while the enzyme activities in salivas of group Bm were demonstrated to the same degree in normal group B salivas.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Archives of Biochemistry and Biophysics 270 (1989), S. 302-312 
    ISSN: 0003-9861
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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