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  • 1
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    Dipeptidyl peptidase 4 is a functional receptor for the emerging human coronavirus-EMC (2013)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2013-03-15
    Description: Most human coronaviruses cause mild upper respiratory tract disease but may be associated with more severe pulmonary disease in immunocompromised individuals. However, SARS coronavirus caused severe lower respiratory disease with nearly 10% mortality and evidence of systemic spread. Recently, another coronavirus (human coronavirus-Erasmus Medical Center (hCoV-EMC)) was identified in patients with severe and sometimes lethal lower respiratory tract infection. Viral genome analysis revealed close relatedness to coronaviruses found in bats. Here we identify dipeptidyl peptidase 4 (DPP4; also known as CD26) as a functional receptor for hCoV-EMC. DPP4 specifically co-purified with the receptor-binding S1 domain of the hCoV-EMC spike protein from lysates of susceptible Huh-7 cells. Antibodies directed against DPP4 inhibited hCoV-EMC infection of primary human bronchial epithelial cells and Huh-7 cells. Expression of human and bat (Pipistrellus pipistrellus) DPP4 in non-susceptible COS-7 cells enabled infection by hCoV-EMC. The use of the evolutionarily conserved DPP4 protein from different species as a functional receptor provides clues about the host range potential of hCoV-EMC. In addition, it will contribute critically to our understanding of the pathogenesis and epidemiology of this emerging human coronavirus, and may facilitate the development of intervention strategies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Raj, V Stalin -- Mou, Huihui -- Smits, Saskia L -- Dekkers, Dick H W -- Muller, Marcel A -- Dijkman, Ronald -- Muth, Doreen -- Demmers, Jeroen A A -- Zaki, Ali -- Fouchier, Ron A M -- Thiel, Volker -- Drosten, Christian -- Rottier, Peter J M -- Osterhaus, Albert D M E -- Bosch, Berend Jan -- Haagmans, Bart L -- England -- Nature. 2013 Mar 14;495(7440):251-4. doi: 10.1038/nature12005.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Viroscience, Erasmus Medical Center, 3000 CA Rotterdam, The Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23486063" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bronchioles/cytology ; COS Cells ; Cercopithecus aethiops ; Chiroptera ; Coronavirus/*classification/*metabolism ; Coronavirus Infections/epidemiology/genetics/metabolism/virology ; Dipeptidyl Peptidase 4/genetics/*metabolism ; Epithelial Cells/virology ; Host Specificity ; Humans ; Molecular Sequence Data ; Receptors, Virus/genetics/*metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 2
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    Transcription-independent function of Polycomb group protein PSC in cell cycle control (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-04-12
    Description: Polycomb group (PcG) proteins control development and cell proliferation through chromatin-mediated transcriptional repression. We describe a transcription-independent function for PcG protein Posterior sex combs (PSC) in regulating the destruction of cyclin B (CYC-B). A substantial portion of PSC was found outside canonical PcG complexes, instead associated with CYC-B and the anaphase-promoting complex (APC). Cell-based experiments and reconstituted reactions established that PSC and Lemming (LMG, also called APC11) associate and ubiquitylate CYC-B cooperatively, marking it for proteosomal degradation. Thus, PSC appears to mediate both developmental gene silencing and posttranslational control of mitosis. Direct regulation of cell cycle progression might be a crucial part of the PcG system's function in development and cancer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mohd-Sarip, Adone -- Lagarou, Anna -- Doyen, Cecile M -- van der Knaap, Jan A -- Aslan, Ulku -- Bezstarosti, Karel -- Yassin, Yasmin -- Brock, Hugh W -- Demmers, Jeroen A A -- Verrijzer, C Peter -- New York, N.Y. -- Science. 2012 May 11;336(6082):744-7. doi: 10.1126/science.1215927. Epub 2012 Apr 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Centre for Biomedical Genetics, Erasmus University Medical Centre, Post Office Box 1738, 3000 DR, Rotterdam, Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22491092" target="_blank"〉PubMed〈/a〉
    Keywords: Anaphase-Promoting Complex-Cyclosome ; Animals ; Apc11 Subunit, Anaphase-Promoting Complex-Cyclosome ; Carrier Proteins/metabolism ; *Cell Cycle Checkpoints ; Cell Line ; Compound Eye, Arthropod/growth & development/metabolism ; Cyclin B/*metabolism ; DNA-Binding Proteins/chemistry/genetics/*metabolism ; Drosophila Proteins/chemistry/genetics/*metabolism ; Drosophila melanogaster/cytology/embryology/metabolism ; G2 Phase Cell Cycle Checkpoints ; Gene Silencing ; Imaginal Discs/metabolism ; *Mitosis ; Phenotype ; Polycomb Repressive Complex 1 ; Proteasome Endopeptidase Complex/metabolism ; Protein Binding ; Protein Interaction Domains and Motifs ; RNA Interference ; Transcription, Genetic ; Ubiquitin-Protein Ligase Complexes/metabolism ; Ubiquitination ; Wings, Animal/growth & development
    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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