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  • 1
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    White collar-1, a DNA binding transcription factor and a light sensor (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-07-06
    Description: Blue light regulates many physiological processes in fungi, but their photoreceptors are not known. In Neurospora crassa, all light responses depend on the Per-Arnt-Sim (PAS) domain-containing transcription factor white collar-1 (wc-1). By removing the WC-1 light, oxygen, or voltage domain, a specialized PAS domain that binds flavin mononucleotide in plant phototropins, we show that light responses are abolished, including light entrainment of the circadian clock. However, the WC-1-mediated dark activation of frq remains normal in this mutant, and the circadian clock can be entrained by temperature. Furthermore, we demonstrate that the purified Neurospora WC-1-WC-2 protein complex is associated with stoichiometric amounts of the chromophore flavin-adenine dinucleotide. Together, these observations suggest that WC-1 is the blue-light photoreceptor for the circadian clock and other light responses in Neurospora.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉He, Qiyang -- Cheng, Ping -- Yang, Yuhong -- Wang, Lixing -- Gardner, Kevin H -- Liu, Yi -- New York, N.Y. -- Science. 2002 Aug 2;297(5582):840-3. Epub 2002 Jul 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12098705" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Circadian Rhythm/radiation effects ; Color ; DNA, Fungal/genetics/metabolism ; DNA-Binding Proteins/chemistry/deficiency/genetics/*metabolism ; Darkness ; Dimerization ; Flavin Mononucleotide/metabolism ; Flavin-Adenine Dinucleotide/metabolism ; Fungal Proteins/chemistry/genetics/metabolism ; Gene Deletion ; Gene Expression Regulation, Fungal/radiation effects ; *Light ; Molecular Sequence Data ; Neurospora crassa/genetics/*metabolism/radiation effects ; Oxygen/metabolism ; Photoreceptors, Microbial/chemistry/genetics/*metabolism ; Promoter Regions, Genetic/genetics ; Protein Binding ; Protein Structure, Tertiary ; Response Elements/genetics ; Temperature ; Transcription Factors/chemistry/deficiency/genetics/*metabolism
    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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    Isolation and characterization of viruses related to the SARS coronavirus from animals in southern China (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-09-06
    Description: A novel coronavirus (SCoV) is the etiological agent of severe acute respiratory syndrome (SARS). SCoV-like viruses were isolated from Himalayan palm civets found in a live-animal market in Guangdong, China. Evidence of virus infection was also detected in other animals (including a raccoon dog, Nyctereutes procyonoides) and in humans working at the same market. All the animal isolates retain a 29-nucleotide sequence that is not found in most human isolates. The detection of SCoV-like viruses in small, live wild mammals in a retail market indicates a route of interspecies transmission, although the natural reservoir is not known.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Guan, Y -- Zheng, B J -- He, Y Q -- Liu, X L -- Zhuang, Z X -- Cheung, C L -- Luo, S W -- Li, P H -- Zhang, L J -- Guan, Y J -- Butt, K M -- Wong, K L -- Chan, K W -- Lim, W -- Shortridge, K F -- Yuen, K Y -- Peiris, J S M -- Poon, L L M -- New York, N.Y. -- Science. 2003 Oct 10;302(5643):276-8. Epub 2003 Sep 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology, The University of Hong Kong, University Pathology Building, Queen Mary Hospital, Hong Kong Special Administrative Region, People's Republic of China. yguan@hkucc.hku.hk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12958366" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Animals, Wild/*virology ; Antibodies, Viral/blood ; Blotting, Western ; Carnivora/*virology ; China ; Coronavirus/classification/genetics/immunology/*isolation & purification ; Coronavirus Infections/veterinary/virology ; Disease Reservoirs ; Feces/virology ; Genome, Viral ; Humans ; Membrane Glycoproteins/chemistry/genetics ; Molecular Sequence Data ; Neutralization Tests ; Nose/virology ; Open Reading Frames/genetics ; Phylogeny ; Polymorphism, Genetic ; Reverse Transcriptase Polymerase Chain Reaction ; SARS Virus/classification/genetics/immunology/*isolation & purification ; Sequence Deletion ; Sequence Homology, Nucleic Acid ; Spike Glycoprotein, Coronavirus ; Viral Envelope Proteins/chemistry/genetics ; Viral Proteins/chemistry/genetics
    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)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
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