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  • 1
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    Multiple in-plane spin reorientation transitions in Fe/CoO bilayers grown on vicinal MgO(001) (2015)
    American Physical Society (APS)
    Details
    Publication Date: 2015-03-26
    Description: Author(s): Q. Li, T. Gu, J. Zhu, Z. Ding, J. X. Li, J. H. Liang, Y. M. Luo, Z. Hu, C. Y. Hua, H.-J. Lin, T. W. Pi, C. Won, and Y. Z. Wu Step-induced antiferromagnetic (AFM) uniaxial anisotropy and its effects on the exchange coupling have been systematically investigated in the epitaxial Fe/CoO bilayers on a MgO(001) vicinal surface. X-ray magnetic linear dichroism measurements proved that the atomic steps induced a strong in-plane ... [Phys. Rev. B 91, 104424] Published Wed Mar 25, 2015
    Keywords: Magnetism
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
    Published by American Physical Society (APS)
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  • 2
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    Pt-enhanced anisotropic magnetoresistance in Pt/Fe bilayers (2014)
    American Physical Society (APS)
    Details
    Publication Date: 2014-12-05
    Description: Author(s): J. X. Li, M. W. Jia, Z. Ding, J. H. Liang, Y. M. Luo, and Y. Z. Wu The anisotropic magnetoresistance (AMR) in epitaxial Pt/Fe/MgO(001) bilayers was systematically studied as a function of Pt thickness, and a strong enhancement of AMR by the Pt layer was observed. The enhancement of AMR persists with a 1 nm Au layer inserted between Pt and Fe but disappears with a 1... [Phys. Rev. B 90, 214415] Published Thu Dec 04, 2014
    Keywords: Magnetism
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
    Published by American Physical Society (APS)
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  • 3
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    Antiferromagnetic spin reorientation transition in epitaxial NiO/CoO/MgO(001) systems (2014)
    American Physical Society (APS)
    Details
    Publication Date: 2014-08-07
    Description: Author(s): J. Zhu, Q. Li, J. X. Li, Z. Ding, J. H. Liang, X. Xiao, Y. M. Luo, C. Y. Hua, H.-J. Lin, T. W. Pi, Z. Hu, C. Won, and Y. Z. Wu The magnetic properties of antiferromagnetic (AFM) spins were investigated using x-ray magnetic linear dichroism (XMLD) in epitaxial NiO/CoO/MgO(001) films as a function of film thickness, temperature, and interface modulation. We found that the NiO AFM spins undergo a spin reorientation transition ... [Phys. Rev. B 90, 054403] Published Wed Aug 06, 2014
    Keywords: Magnetism
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
    Published by American Physical Society (APS)
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  • 4
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    The three-dimensional structure of canine parvovirus and its functional implications (1991)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1991-03-22
    Description: The three-dimensional atomic structure of a single-stranded DNA virus has been determined. Infectious virions of canine parvovirus contain 60 protein subunits that are predominantly VP-2. The central structural motif of VP-2 has the same topology (an eight-stranded antiparallel beta barrel) as has been found in many other icosahedral viruses but represents only about one-third of the capsid protein. There is a 22 angstrom (A) long protrusion on the threefold axes, a 15 A deep canyon circulating about each of the five cylindrical structures at the fivefold axes, and a 15 A deep depression at the twofold axes. By analogy with rhinoviruses, the canyon may be the site of receptor attachment. Residues related to the antigenic properties of the virus are found on the threefold protrusions. Some of the amino termini of VP-2 run to the exterior in full but not empty virions, which is consistent with the observation that some VP-2 polypeptides in full particles can be cleaved by trypsin. Eleven nucleotides are seen in each of 60 symmetry-related pockets on the interior surface of the capsid and together account for 13 percent of the genome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tsao, J -- Chapman, M S -- Agbandje, M -- Keller, W -- Smith, K -- Wu, H -- Luo, M -- Smith, T J -- Rossmann, M G -- Compans, R W -- New York, N.Y. -- Science. 1991 Mar 22;251(5000):1456-64.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, Purdue University, West Lafayette, IN 47907.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2006420" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antigens, Viral/chemistry ; Capsid/ultrastructure ; Crystallography ; DNA, Viral/ultrastructure ; Hemagglutinins, Viral/chemistry ; Models, Molecular ; Molecular Sequence Data ; Molecular Structure ; Parvoviridae/*ultrastructure ; Virion/ultrastructure ; Virus Replication ; X-Ray Diffraction
    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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  • 5
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    Structure of the vesicular stomatitis virus nucleoprotein-RNA complex (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-06-17
    Description: Vesicular stomatitis virus is a negative-stranded RNA virus. Its nucleoprotein (N) binds the viral genomic RNA and is involved in multiple functions including transcription, replication, and assembly. We have determined a 2.9 angstrom structure of a complex containing 10 molecules of the N protein and 90 bases of RNA. The RNA is tightly sequestered in a cavity at the interface between two lobes of the N protein. This serves to protect the RNA in the absence of polynucleotide synthesis. For the RNA to be accessed, some conformational change in the N protein should be necessary.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Green, Todd J -- Zhang, Xin -- Wertz, Gail W -- Luo, Ming -- AI050066/AI/NIAID NIH HHS/ -- R37 AI012464/AI/NIAID NIH HHS/ -- R37 AI012464-28/AI/NIAID NIH HHS/ -- R37 AI012464-29/AI/NIAID NIH HHS/ -- R37 AI012464-30/AI/NIAID NIH HHS/ -- R37 AI012464-31/AI/NIAID NIH HHS/ -- R37AI012464/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2006 Jul 21;313(5785):357-60. Epub 2006 Jun 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology, School of Medicine, University of Alabama at Birmingham, 1025 18th Street South, Birmingham, AL 35294, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16778022" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Crystallography, X-Ray ; Hydrophobic and Hydrophilic Interactions ; Models, Molecular ; Molecular Sequence Data ; Nucleic Acid Conformation ; Nucleocapsid Proteins/*chemistry/metabolism ; Protein Conformation ; Protein Structure, Secondary ; Protein Structure, Tertiary ; RNA, Viral/*chemistry/metabolism ; Ribonucleoproteins/*chemistry ; Sequence Alignment ; Vesicular stomatitis Indiana virus/*chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    The gene Sr33, an ortholog of barley Mla genes, encodes resistance to wheat stem rust race Ug99 (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-07-03
    Description: Wheat stem rust, caused by the fungus Puccinia graminis f. sp. tritici, afflicts bread wheat (Triticum aestivum). New virulent races collectively referred to as "Ug99" have emerged, which threaten global wheat production. The wheat gene Sr33, introgressed from the wild relative Aegilops tauschii into bread wheat, confers resistance to diverse stem rust races, including the Ug99 race group. We cloned Sr33, which encodes a coiled-coil, nucleotide-binding, leucine-rich repeat protein. Sr33 is orthologous to the barley (Hordeum vulgare) Mla mildew resistance genes that confer resistance to Blumeria graminis f. sp. hordei. The wheat Sr33 gene functions independently of RAR1, SGT1, and HSP90 chaperones. Haplotype analysis from diverse collections of Ae. tauschii placed the origin of Sr33 resistance near the southern coast of the Caspian Sea.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Periyannan, Sambasivam -- Moore, John -- Ayliffe, Michael -- Bansal, Urmil -- Wang, Xiaojing -- Huang, Li -- Deal, Karin -- Luo, Mingcheng -- Kong, Xiuying -- Bariana, Harbans -- Mago, Rohit -- McIntosh, Robert -- Dodds, Peter -- Dvorak, Jan -- Lagudah, Evans -- New York, N.Y. -- Science. 2013 Aug 16;341(6147):786-8. doi: 10.1126/science.1239028. Epub 2013 Jun 27.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Commonwealth Scientific and Industrial Research Organization (CSIRO) Plant Industry, Canberra, ACT 2601, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23811228" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; *Basidiomycota/pathogenicity ; Cloning, Molecular ; Disease Resistance/genetics ; *Genes, Plant ; Haplotypes ; Hordeum/genetics ; Hybridization, Genetic ; Molecular Chaperones/genetics/metabolism ; Molecular Sequence Data ; Mutation ; Plant Diseases/genetics/*immunology/microbiology ; Plant Proteins/chemistry/genetics/metabolism ; Plant Stems/microbiology ; Plants, Genetically Modified ; Poaceae/*genetics ; Synteny ; Triticum/*genetics/*microbiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    Isolation and characterization of a bat SARS-like coronavirus that uses the ACE2 receptor (2013)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2013-11-01
    Description: The 2002-3 pandemic caused by severe acute respiratory syndrome coronavirus (SARS-CoV) was one of the most significant public health events in recent history. An ongoing outbreak of Middle East respiratory syndrome coronavirus suggests that this group of viruses remains a key threat and that their distribution is wider than previously recognized. Although bats have been suggested to be the natural reservoirs of both viruses, attempts to isolate the progenitor virus of SARS-CoV from bats have been unsuccessful. Diverse SARS-like coronaviruses (SL-CoVs) have now been reported from bats in China, Europe and Africa, but none is considered a direct progenitor of SARS-CoV because of their phylogenetic disparity from this virus and the inability of their spike proteins to use the SARS-CoV cellular receptor molecule, the human angiotensin converting enzyme II (ACE2). Here we report whole-genome sequences of two novel bat coronaviruses from Chinese horseshoe bats (family: Rhinolophidae) in Yunnan, China: RsSHC014 and Rs3367. These viruses are far more closely related to SARS-CoV than any previously identified bat coronaviruses, particularly in the receptor binding domain of the spike protein. Most importantly, we report the first recorded isolation of a live SL-CoV (bat SL-CoV-WIV1) from bat faecal samples in Vero E6 cells, which has typical coronavirus morphology, 99.9% sequence identity to Rs3367 and uses ACE2 from humans, civets and Chinese horseshoe bats for cell entry. Preliminary in vitro testing indicates that WIV1 also has a broad species tropism. Our results provide the strongest evidence to date that Chinese horseshoe bats are natural reservoirs of SARS-CoV, and that intermediate hosts may not be necessary for direct human infection by some bat SL-CoVs. They also highlight the importance of pathogen-discovery programs targeting high-risk wildlife groups in emerging disease hotspots as a strategy for pandemic preparedness.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ge, Xing-Yi -- Li, Jia-Lu -- Yang, Xing-Lou -- Chmura, Aleksei A -- Zhu, Guangjian -- Epstein, Jonathan H -- Mazet, Jonna K -- Hu, Ben -- Zhang, Wei -- Peng, Cheng -- Zhang, Yu-Ji -- Luo, Chu-Ming -- Tan, Bing -- Wang, Ning -- Zhu, Yan -- Crameri, Gary -- Zhang, Shu-Yi -- Wang, Lin-Fa -- Daszak, Peter -- Shi, Zheng-Li -- R01AI079231/AI/NIAID NIH HHS/ -- R01TW005869/TW/FIC NIH HHS/ -- R56TW009502/TW/FIC NIH HHS/ -- England -- Nature. 2013 Nov 28;503(7477):535-8. doi: 10.1038/nature12711. Epub 2013 Oct 30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Center for Emerging Infectious Diseases, State Key Laboratory of Virology, Wuhan Institute of Virology of the Chinese Academy of Sciences, Wuhan 430071, China [2].〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24172901" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cercopithecus aethiops ; China ; Chiroptera/*virology ; Disease Reservoirs/virology ; Feces/virology ; Fluorescent Antibody Technique ; Genome, Viral/genetics ; Host Specificity ; Humans ; Molecular Sequence Data ; Pandemics/prevention & control/veterinary ; Peptidyl-Dipeptidase A/genetics/*metabolism ; Real-Time Polymerase Chain Reaction ; Receptors, Virus/genetics/metabolism ; SARS Virus/genetics/*isolation & purification/*metabolism/ultrastructure ; Severe Acute Respiratory Syndrome/prevention & ; control/transmission/veterinary/virology ; Species Specificity ; Spike Glycoprotein, Coronavirus/chemistry/metabolism ; Vero Cells ; Virion/isolation & purification/ultrastructure ; Virus Internalization ; Viverridae/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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  • 8
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    The shaping of modern human immune systems by multiregional admixture with archaic humans (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-08-27
    Description: Whole genome comparisons identified introgression from archaic to modern humans. Our analysis of highly polymorphic human leukocyte antigen (HLA) class I, vital immune system components subject to strong balancing selection, shows how modern humans acquired the HLA-B*73 allele in west Asia through admixture with archaic humans called Denisovans, a likely sister group to the Neandertals. Virtual genotyping of Denisovan and Neandertal genomes identified archaic HLA haplotypes carrying functionally distinctive alleles that have introgressed into modern Eurasian and Oceanian populations. These alleles, of which several encode unique or strong ligands for natural killer cell receptors, now represent more than half the HLA alleles of modern Eurasians and also appear to have been later introduced into Africans. Thus, adaptive introgression of archaic alleles has significantly shaped modern human immune systems.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3677943/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3677943/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Abi-Rached, Laurent -- Jobin, Matthew J -- Kulkarni, Subhash -- McWhinnie, Alasdair -- Dalva, Klara -- Gragert, Loren -- Babrzadeh, Farbod -- Gharizadeh, Baback -- Luo, Ma -- Plummer, Francis A -- Kimani, Joshua -- Carrington, Mary -- Middleton, Derek -- Rajalingam, Raja -- Beksac, Meral -- Marsh, Steven G E -- Maiers, Martin -- Guethlein, Lisbeth A -- Tavoularis, Sofia -- Little, Ann-Margaret -- Green, Richard E -- Norman, Paul J -- Parham, Peter -- AI031168/AI/NIAID NIH HHS/ -- HHSN261200800001E/PHS HHS/ -- R01 AI031168/AI/NIAID NIH HHS/ -- RR000165/RR/NCRR NIH HHS/ -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2011 Oct 7;334(6052):89-94. doi: 10.1126/science.1209202. Epub 2011 Aug 25.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21868630" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Biological ; African Continental Ancestry Group/genetics ; Alleles ; Animals ; Asian Continental Ancestry Group/genetics ; Continental Population Groups/*genetics ; European Continental Ancestry Group/genetics ; Evolution, Molecular ; *Genes, MHC Class I ; Genetic Variation ; HLA-A Antigens/*genetics/immunology/metabolism ; HLA-B Antigens/*genetics/immunology/metabolism ; HLA-C Antigens/*genetics/immunology ; Haplotypes ; Hominidae/*genetics/*immunology ; Humans ; *Hybridization, Genetic ; Killer Cells, Natural/immunology ; Ligands ; Linkage Disequilibrium ; Molecular Sequence Data ; Oceanic Ancestry Group/genetics ; Receptors, KIR/immunology/metabolism ; Selection, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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