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  • Female  (181)
  • Molecular Sequence Data  (110)
  • Base Sequence
  • American Association for the Advancement of Science (AAAS)  (285)
  • Periodicals Archive Online (PAO)
  • Wiley
  • 2020-2022
  • 2005-2009  (285)
  • 1985-1989
  • 1965-1969
  • 1935-1939
  • 2007  (285)
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  • 2020-2022
  • 2005-2009  (285)
  • 1985-1989
  • 1965-1969
  • 1935-1939
Year
  • 1
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    The evolutionary demography of ecological change: linking trait variation and population growth (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-03-17
    Description: Population dynamics and evolutionary change are linked by the fundamental biological processes of birth and death. This means that population growth may correlate with the strength of selection, whereas evolutionary change can leave an ecological signature. We decompose population growth in an age-structured population into contributions from variation in a quantitative trait. We report that the distribution of body sizes within a population of Soay sheep can markedly influence population dynamics, accounting for up to one-fifth of observed population growth. Our results suggest that there is substantial opportunity for evolutionary dynamics to leave an ecological signature and visa versa.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pelletier, Fanie -- Clutton-Brock, Tim -- Pemberton, Josephine -- Tuljapurkar, Shripad -- Coulson, Tim -- P01 AG 22500/AG/NIA NIH HHS/ -- P01 AG022500/AG/NIA NIH HHS/ -- P01 AG022500-04/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 2007 Mar 16;315(5818):1571-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biology and the Natural Environment Research Council (NERC) Centre for Population Biology, Imperial College London, Silwood Park, Ascot, Berkshire, SL5 7PY, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17363672" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Birth Weight ; Body Size/genetics ; Body Weight/genetics ; Ecology ; Environment ; Female ; *Genetic Variation ; Hindlimb/anatomy & histology ; Male ; Mathematics ; Population Dynamics ; Population Growth ; *Quantitative Trait, Heritable ; Scotland ; *Selection, Genetic ; *Sheep/anatomy & histology/genetics/growth & development ; Weather
    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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    Oocyte donation for stem cell research (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-04-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉International Stem Cell Forum Ethics Working Party -- Knoppers, Bartha Maria -- Revel, Michel -- Richardson, Genevra -- Kure, Josef -- Lotjonen, Salla -- Isasi, Rosario -- Mauron, Alexandre -- Wahlstrom, Jan -- Rager, Bracha -- Peng, Peng Lee Hin -- New York, N.Y. -- Science. 2007 Apr 20;316(5823):368-70; author reply 368-70.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17450633" target="_blank"〉PubMed〈/a〉
    Keywords: *Embryo Research/ethics ; *Embryonic Stem Cells ; Female ; *Guidelines as Topic ; Humans ; International Cooperation ; Oocyte Donation/*economics/ethics/standards ; Reimbursement Mechanisms
    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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    Structures of the CCR5 N terminus and of a tyrosine-sulfated antibody with HIV-1 gp120 and CD4 (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-09-29
    Description: The CCR5 co-receptor binds to the HIV-1 gp120 envelope glycoprotein and facilitates HIV-1 entry into cells. Its N terminus is tyrosine-sulfated, as are many antibodies that react with the co-receptor binding site on gp120. We applied nuclear magnetic resonance and crystallographic techniques to analyze the structure of the CCR5 N terminus and that of the tyrosine-sulfated antibody 412d in complex with gp120 and CD4. The conformations of tyrosine-sulfated regions of CCR5 (alpha-helix) and 412d (extended loop) are surprisingly different. Nonetheless, a critical sulfotyrosine on CCR5 and on 412d induces similar structural rearrangements in gp120. These results now provide a framework for understanding HIV-1 interactions with the CCR5 N terminus during viral entry and define a conserved site on gp120, whose recognition of sulfotyrosine engenders posttranslational mimicry by the immune system.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2278242/" 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/PMC2278242/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huang, Chih-Chin -- Lam, Son N -- Acharya, Priyamvada -- Tang, Min -- Xiang, Shi-Hua -- Hussan, Syed Shahzad-Ul -- Stanfield, Robyn L -- Robinson, James -- Sodroski, Joseph -- Wilson, Ian A -- Wyatt, Richard -- Bewley, Carole A -- Kwong, Peter D -- P30 AI060354/AI/NIAID NIH HHS/ -- U19 AI067854/AI/NIAID NIH HHS/ -- U19 AI067854-03/AI/NIAID NIH HHS/ -- Z99 AI999999/Intramural NIH HHS/ -- New York, N.Y. -- Science. 2007 Sep 28;317(5846):1930-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17901336" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antigens, CD4/*chemistry/immunology ; Crystallography, X-Ray ; HIV Antibodies/*chemistry/immunology ; HIV Envelope Protein gp120/*chemistry/immunology/metabolism ; HIV-1/metabolism ; Humans ; Models, Molecular ; Molecular Mimicry ; Molecular Sequence Data ; Nuclear Magnetic Resonance, Biomolecular ; Peptide Fragments/chemistry/metabolism ; Receptors, CCR5/*chemistry/metabolism ; Sulfates/metabolism ; Tyrosine/metabolism ; Virus Internalization
    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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  • 4
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    The FERONIA receptor-like kinase mediates male-female interactions during pollen tube reception (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-08-04
    Description: In flowering plants, signaling between the male pollen tube and the synergid cells of the female gametophyte is required for fertilization. In the Arabidopsis thaliana mutant feronia (fer), fertilization is impaired; the pollen tube fails to arrest and thus continues to grow inside the female gametophyte. FER encodes a synergid-expressed, plasma membrane-localized receptor-like kinase. We found that the FER protein accumulates asymmetrically in the synergid membrane at the filiform apparatus. Interspecific crosses using pollen from Arabidopsis lyrata and Cardamine flexuosa on A. thaliana stigmas resulted in a fer-like phenotype that correlates with sequence divergence in the extracellular domain of FER. Our findings show that the female control of pollen tube reception is based on a FER-dependent signaling pathway, which may play a role in reproductive isolation barriers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Escobar-Restrepo, Juan-Miguel -- Huck, Norbert -- Kessler, Sharon -- Gagliardini, Valeria -- Gheyselinck, Jacqueline -- Yang, Wei-Cai -- Grossniklaus, Ueli -- New York, N.Y. -- Science. 2007 Aug 3;317(5838):656-60.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Plant Biology and Zurich-Basel Plant Science Center, University of Zurich, Zollikerstrasse 107, CH-8008 Zurich, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17673660" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/enzymology/genetics/*physiology ; Arabidopsis Proteins/chemistry/*genetics/*metabolism ; Brassicaceae/genetics/physiology ; Cell Membrane/enzymology ; Crosses, Genetic ; Evolution, Molecular ; Flowers/cytology/enzymology/*physiology ; Gene Expression ; Genes, Plant ; Germination ; Ligands ; Molecular Sequence Data ; Mutation ; Phosphorylation ; Phosphotransferases/chemistry/*genetics/*metabolism ; Plant Epidermis/enzymology ; Pollen Tube/growth & development/*physiology ; Recombinant Fusion Proteins/metabolism ; Reproduction ; Seeds/growth & development ; Signal Transduction ; Species Specificity
    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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  • 5
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    South Africa. Firing of AIDS policy champion seen as setback (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-08-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koenig, Robert -- New York, N.Y. -- Science. 2007 Aug 17;317(5840):881.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17702915" target="_blank"〉PubMed〈/a〉
    Keywords: *Acquired Immunodeficiency Syndrome/drug therapy/epidemiology/prevention & ; control ; *Administrative Personnel ; Employment ; Female ; *Health Policy ; History, 21st Century ; Humans ; *Public Health Administration ; South Africa/epidemiology
    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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    Asymmetry in the structure of the ABC transporter-binding protein complex BtuCD-BtuF (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-08-04
    Description: BtuCD is an adenosine triphosphate-binding cassette (ABC) transporter that translocates vitamin B12 from the periplasmic binding protein BtuF into the cytoplasm of Escherichia coli. The 2.6 angstrom crystal structure of a complex BtuCD-F reveals substantial conformational changes as compared with the previously reported structures of BtuCD and BtuF. The lobes of BtuF are spread apart, and B12 is displaced from the binding pocket. The transmembrane BtuC subunits reveal two distinct conformations, and the translocation pathway is closed to both sides of the membrane. Electron paramagnetic resonance spectra of spin-labeled cysteine mutants reconstituted in proteoliposomes are consistent with the conformation of BtuCD-F that was observed in the crystal structure. A comparison with BtuCD and the homologous HI1470/71 protein suggests that the structure of BtuCD-F may reflect a posttranslocation intermediate.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hvorup, Rikki N -- Goetz, Birke A -- Niederer, Martina -- Hollenstein, Kaspar -- Perozo, Eduardo -- Locher, Kaspar P -- New York, N.Y. -- Science. 2007 Sep 7;317(5843):1387-90. Epub 2007 Aug 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Molecular Biology and Biophysics, ETH Zurich, HPK D14.3, 8093 Zurich, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17673622" target="_blank"〉PubMed〈/a〉
    Keywords: ATP-Binding Cassette Transporters/*chemistry ; Amino Acid Sequence ; Crystallography, X-Ray ; Electron Spin Resonance Spectroscopy ; Escherichia coli ; Escherichia coli Proteins/*chemistry ; Models, Molecular ; Molecular Sequence Data ; Periplasmic Binding Proteins/*chemistry ; Protein Binding ; Protein Conformation ; Recombinant Fusion Proteins/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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  • 7
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    Changes in regulation of a transcription factor lead to autogamy in cultivated tomatoes (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-10-27
    Description: We report the cloning of Style2.1, the major quantitative trait locus responsible for a key floral attribute (style length) associated with the evolution of self-pollination in cultivated tomatoes. The gene encodes a putative transcription factor that regulates cell elongation in developing styles. The transition from cross-pollination to self-pollination was accompanied, not by a change in the STYLE2.1 protein, but rather by a mutation in the Style2.1 promoter that results in a down-regulation of Style2.1 expression during flower development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Kai-Yi -- Cong, Bin -- Wing, Rod -- Vrebalov, Julia -- Tanksley, Steven D -- New York, N.Y. -- Science. 2007 Oct 26;318(5850):643-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Breeding and Genetics, Cornell University, Ithaca, NY 14853, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17962563" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Biological Evolution ; Chromosome Mapping ; Cloning, Molecular ; Crosses, Genetic ; Down-Regulation ; Flowers/*anatomy & histology/genetics/growth & development ; Genes, Plant ; Genotype ; Helix-Loop-Helix Motifs ; Lycopersicon esculentum/anatomy & histology/*genetics/*physiology ; Molecular Sequence Data ; Plant Proteins/chemistry/*genetics/metabolism ; Pollen/physiology ; Promoter Regions, Genetic ; Quantitative Trait Loci ; Reproduction ; Sequence Deletion ; Transcription Factors/chemistry/*genetics/metabolism ; Transformation, Genetic
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    Evolutionary formation of new centromeres in macaque (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-04-14
    Description: A systematic fluorescence in situ hybridization comparison of macaque and human synteny organization disclosed five additional macaque evolutionary new centromeres (ENCs) for a total of nine ENCs. To understand the dynamics of ENC formation and progression, we compared the ENC of macaque chromosome 4 with the human orthologous region, at 6q24.3, that conserves the ancestral genomic organization. A 250-kilobase segment was extensively duplicated around the macaque centromere. These duplications were strictly intrachromosomal. Our results suggest that novel centromeres may trigger only local duplication activity and that the absence of genes in the seeding region may have been important in ENC maintenance and progression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ventura, Mario -- Antonacci, Francesca -- Cardone, Maria Francesca -- Stanyon, Roscoe -- D'Addabbo, Pietro -- Cellamare, Angelo -- Sprague, L James -- Eichler, Evan E -- Archidiacono, Nicoletta -- Rocchi, Mariano -- GM58815/GM/NIGMS NIH HHS/ -- HG002385/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2007 Apr 13;316(5822):243-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics and Microbiology, University of Bari, 70126 Bari, Italy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17431171" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; *Centromere ; Chromosomes, Human, Pair 6 ; Dna ; *Evolution, Molecular ; Gene Duplication ; Humans ; Macaca mulatta/*genetics ; Molecular Sequence Data ; Sequence Tagged Sites ; Synteny
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
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  • 9
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    Sound production in the clownfish Amphiprion clarkii (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-05-19
    Description: Although clownfish sounds were recorded as early as 1930, the mechanism of sound production has remained obscure. Yet, clownfish are prolific "singers" that produce a wide variety of sounds, described as "chirps" and "pops" in both reproductive and agonistic behavioral contexts. Here, we describe the sonic mechanism of the clownfish Amphiprion clarkii.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Parmentier, Eric -- Colleye, Orphal -- Fine, Michael L -- Frederich, Bruno -- Vandewalle, Pierre -- Herrel, Anthony -- New York, N.Y. -- Science. 2007 May 18;316(5827):1006.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratoire de Morphologie Fonctionnelle et Evolutive, Institut de Chimie, Batiment B6, Universite de Liege, B-4000 Liege, Belgique. E.Parmentier@ulg.ac.be〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17510359" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Female ; Jaw/physiology ; Ligaments/physiology ; Male ; Mouth/physiology ; Movement ; Perciformes/anatomy & histology/*physiology ; Tooth/anatomy & histology/physiology ; *Vocalization, Animal
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
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  • 10
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    CRISPR provides acquired resistance against viruses in prokaryotes (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-03-24
    Description: Clustered regularly interspaced short palindromic repeats (CRISPR) are a distinctive feature of the genomes of most Bacteria and Archaea and are thought to be involved in resistance to bacteriophages. We found that, after viral challenge, bacteria integrated new spacers derived from phage genomic sequences. Removal or addition of particular spacers modified the phage-resistance phenotype of the cell. Thus, CRISPR, together with associated cas genes, provided resistance against phages, and resistance specificity is determined by spacer-phage sequence similarity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barrangou, Rodolphe -- Fremaux, Christophe -- Deveau, Helene -- Richards, Melissa -- Boyaval, Patrick -- Moineau, Sylvain -- Romero, Dennis A -- Horvath, Philippe -- New York, N.Y. -- Science. 2007 Mar 23;315(5819):1709-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Danisco USA Inc., 3329 Agriculture Drive, Madison, WI 53716, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17379808" target="_blank"〉PubMed〈/a〉
    Keywords: DNA, Bacterial/genetics ; DNA, Intergenic/*genetics ; Evolution, Molecular ; *Genes, Bacterial ; Genome, Viral ; Molecular Sequence Data ; Mutation ; Polymorphism, Single Nucleotide ; *Repetitive Sequences, Nucleic Acid ; Streptococcus Phages/genetics/*physiology ; Streptococcus thermophilus/*genetics/*virology ; Viral Plaque Assay ; Virus Replication
    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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