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  • 1
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    Generation and analysis of interleukin-4 deficient mice (1991)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1991-11-01
    Description: Interleukin-4 (IL-4) promotes the growth and differentiation of many hematopoietic cells in vitro; in particular, it directs the immunoglobulin (Ig) class switch to IgG1 and IgE. Mice homozygous for a mutation that inactivates the IL-4 gene were generated to test the requirement for IL-4 in vivo. In the mutant mice T and B cell development was normal, but the serum levels of IgG1 and IgE were strongly reduced. The IgG1 dominance in a T cell-dependent immune response was lost, and IgE was not detectable upon nematode infection. Thus, some but not all of the in vitro properties of IL-4 are critical for the physiology of the immune system in vivo.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kuhn, R -- Rajewsky, K -- Muller, W -- New York, N.Y. -- Science. 1991 Nov 1;254(5032):707-10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Genetics, University of Cologne, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1948049" target="_blank"〉PubMed〈/a〉
    Keywords: Aging ; Alleles ; Animals ; B-Lymphocytes/immunology ; Blotting, Southern ; Chromosome Deletion ; Concanavalin A ; DNA/genetics/isolation & purification ; Female ; Interleukin-4/deficiency/*genetics ; Lymph Nodes/growth & development/immunology ; Lymphocyte Activation ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Mutant Strains ; Restriction Mapping ; Spleen/growth & development/immunology ; T-Lymphocytes/immunology ; Thymus Gland/growth & development/immunology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Expression and activity of the POU transcription factor SCIP (1990)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1990-09-14
    Description: POU proteins have been shown to transcriptionally active cell-specific genes and to participate in the determination of cell fate. It is therefore thought that these proteins function in development through the stable activation of genes that define specific developmental pathways. Evidence is provided here for an alternative mode of action. The primary structure of SCIP, a POU protein expressed by developing Schwann cells of the peripheral nervous system, was deduced and SCIP activity was studied. Both in normal development and in response to nerve transection, SCIP expression was transiently activated only during the period of rapid cell division that separates the premyelinating and myelinating phases of Schwann cell differentiation. In cotransfection assays, SCIP acted as a transcriptional repressor of myelin-specific genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Monuki, E S -- Kuhn, R -- Weinmaster, G -- Trapp, B D -- Lemke, G -- NS 23896/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1990 Sep 14;249(4974):1300-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Neurobiology Laboratory, Salk Institute, La Jolla, CA 92037.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1975954" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cell Differentiation/genetics ; Cloning, Molecular ; Cyclic AMP/physiology ; Gene Expression Regulation ; Gene Library ; Genes, Homeobox/genetics/*physiology ; Molecular Sequence Data ; Myelin Sheath/metabolism ; Nerve Tissue Proteins/genetics/*physiology ; Octamer Transcription Factor-6 ; Rats ; Repressor Proteins/genetics/*physiology ; Schwann Cells/*cytology/metabolism ; Transcription Factors/genetics/*physiology ; Transfection
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    MHC class I expression in mice lacking the proteasome subunit LMP-7 (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-08-26
    Description: Proteasomes degrade endogenous proteins. Two subunits, LMP-2 and LMP-7, are encoded in a region of the major histocompatibility complex (MHC) that is critical for class I-restricted antigen presentation. Mice with a targeted deletion of the gene encoding LMP-7 have reduced levels of MHC class I cell-surface expression and present the endogenous antigen HY inefficiently; addition of peptides to splenocytes deficient in LMP-7 restores wild-type class I expression levels. This demonstrates the involvement of LMP-7 in the MHC class I presentation pathway and suggests that LMP-7 functions as an integral part of the peptide supply machinery.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fehling, H J -- Swat, W -- Laplace, C -- Kuhn, R -- Rajewsky, K -- Muller, U -- von Boehmer, H -- New York, N.Y. -- Science. 1994 Aug 26;265(5176):1234-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Basel Institute for Immunology, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8066463" target="_blank"〉PubMed〈/a〉
    Keywords: *ATP-Binding Cassette Transporters ; Amino Acid Sequence ; Animals ; Antigen Presentation ; Antigen-Presenting Cells/immunology ; Base Sequence ; Carrier Proteins/genetics ; *Cysteine Endopeptidases ; Female ; Gene Deletion ; H-2 Antigens/*biosynthesis/immunology ; H-Y Antigen/immunology ; Lymphocytes/immunology ; Male ; Mice ; Mice, Knockout ; Molecular Sequence Data ; *Multienzyme Complexes ; Proteasome Endopeptidase Complex ; Proteins/genetics/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 4
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    Resistance to murine acquired immunodeficiency syndrome (MAIDS) (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-07-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Morawetz, R A -- Doherty, T M -- Giese, N A -- Hartley, J W -- Muller, W -- Kuhn, R -- Rajewsky, K -- Coffman, R -- Morse, H C 3rd -- New York, N.Y. -- Science. 1994 Jul 8;265(5169):264-6; author reply 267.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8023146" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cytokines/genetics/immunology ; Disease Susceptibility ; Immunity, Innate/genetics ; Interleukin-4/deficiency/genetics/*immunology ; Mice ; Mice, Inbred Strains ; Mice, Mutant Strains ; Mice, Transgenic ; Murine Acquired Immunodeficiency Syndrome/genetics/*immunology ; T-Lymphocytes, Helper-Inducer/immunology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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