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  • Protein Conformation  (17)
  • American Association for the Advancement of Science (AAAS)  (17)
  • American Institute of Physics
  • American Meteorological Society
  • Oxford University Press
  • 2015-2019
  • 2010-2014  (17)
  • 1960-1964
  • 1955-1959
  • 1935-1939
  • 2013  (17)
  • 1959
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Keywords
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  • American Association for the Advancement of Science (AAAS)  (17)
  • American Institute of Physics
  • American Meteorological Society
  • Oxford University Press
  • Nature Publishing Group (NPG)  (12)
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  • 2015-2019
  • 2010-2014  (17)
  • 1960-1964
  • 1955-1959
  • 1935-1939
Year
  • 1
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    Simultaneous femtosecond X-ray spectroscopy and diffraction of photosystem II at room temperature (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-02-16
    Description: Intense femtosecond x-ray pulses produced at the Linac Coherent Light Source (LCLS) were used for simultaneous x-ray diffraction (XRD) and x-ray emission spectroscopy (XES) of microcrystals of photosystem II (PS II) at room temperature. This method probes the overall protein structure and the electronic structure of the Mn4CaO5 cluster in the oxygen-evolving complex of PS II. XRD data are presented from both the dark state (S1) and the first illuminated state (S2) of PS II. Our simultaneous XRD-XES study shows that the PS II crystals are intact during our measurements at the LCLS, not only with respect to the structure of PS II, but also with regard to the electronic structure of the highly radiation-sensitive Mn4CaO5 cluster, opening new directions for future dynamics studies.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3732582/" 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/PMC3732582/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kern, Jan -- Alonso-Mori, Roberto -- Tran, Rosalie -- Hattne, Johan -- Gildea, Richard J -- Echols, Nathaniel -- Glockner, Carina -- Hellmich, Julia -- Laksmono, Hartawan -- Sierra, Raymond G -- Lassalle-Kaiser, Benedikt -- Koroidov, Sergey -- Lampe, Alyssa -- Han, Guangye -- Gul, Sheraz -- Difiore, Dorte -- Milathianaki, Despina -- Fry, Alan R -- Miahnahri, Alan -- Schafer, Donald W -- Messerschmidt, Marc -- Seibert, M Marvin -- Koglin, Jason E -- Sokaras, Dimosthenis -- Weng, Tsu-Chien -- Sellberg, Jonas -- Latimer, Matthew J -- Grosse-Kunstleve, Ralf W -- Zwart, Petrus H -- White, William E -- Glatzel, Pieter -- Adams, Paul D -- Bogan, Michael J -- Williams, Garth J -- Boutet, Sebastien -- Messinger, Johannes -- Zouni, Athina -- Sauter, Nicholas K -- Yachandra, Vittal K -- Bergmann, Uwe -- Yano, Junko -- GM095887/GM/NIGMS NIH HHS/ -- GM102520/GM/NIGMS NIH HHS/ -- P01 GM063210/GM/NIGMS NIH HHS/ -- P41GM103393/GM/NIGMS NIH HHS/ -- R01 GM055302/GM/NIGMS NIH HHS/ -- R01 GM095887/GM/NIGMS NIH HHS/ -- R01 GM102520/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2013 Apr 26;340(6131):491-5. doi: 10.1126/science.1234273. Epub 2013 Feb 14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23413188" target="_blank"〉PubMed〈/a〉
    Keywords: Crystallography, X-Ray/methods ; Cyanobacteria/enzymology ; Electrons ; Light ; Manganese Compounds/*chemistry ; Oxidation-Reduction ; Oxides/*chemistry ; Photosystem II Protein Complex/*chemistry/radiation effects ; Protein Conformation ; Spectrometry, X-Ray Emission/methods ; Temperature ; Water/chemistry ; X-Ray Diffraction/methods
    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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  • 2
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    Serial femtosecond crystallography of G protein-coupled receptors (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-12-21
    Description: X-ray crystallography of G protein-coupled receptors and other membrane proteins is hampered by difficulties associated with growing sufficiently large crystals that withstand radiation damage and yield high-resolution data at synchrotron sources. We used an x-ray free-electron laser (XFEL) with individual 50-femtosecond-duration x-ray pulses to minimize radiation damage and obtained a high-resolution room-temperature structure of a human serotonin receptor using sub-10-micrometer microcrystals grown in a membrane mimetic matrix known as lipidic cubic phase. Compared with the structure solved by using traditional microcrystallography from cryo-cooled crystals of about two orders of magnitude larger volume, the room-temperature XFEL structure displays a distinct distribution of thermal motions and conformations of residues that likely more accurately represent the receptor structure and dynamics in a cellular environment.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3902108/" 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/PMC3902108/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, Wei -- Wacker, Daniel -- Gati, Cornelius -- Han, Gye Won -- James, Daniel -- Wang, Dingjie -- Nelson, Garrett -- Weierstall, Uwe -- Katritch, Vsevolod -- Barty, Anton -- Zatsepin, Nadia A -- Li, Dianfan -- Messerschmidt, Marc -- Boutet, Sebastien -- Williams, Garth J -- Koglin, Jason E -- Seibert, M Marvin -- Wang, Chong -- Shah, Syed T A -- Basu, Shibom -- Fromme, Raimund -- Kupitz, Christopher -- Rendek, Kimberley N -- Grotjohann, Ingo -- Fromme, Petra -- Kirian, Richard A -- Beyerlein, Kenneth R -- White, Thomas A -- Chapman, Henry N -- Caffrey, Martin -- Spence, John C H -- Stevens, Raymond C -- Cherezov, Vadim -- P50 GM073197/GM/NIGMS NIH HHS/ -- P50 GM073210/GM/NIGMS NIH HHS/ -- R01 GM095583/GM/NIGMS NIH HHS/ -- U54 GM094599/GM/NIGMS NIH HHS/ -- U54 GM094618/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2013 Dec 20;342(6165):1521-4. doi: 10.1126/science.1244142.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24357322" target="_blank"〉PubMed〈/a〉
    Keywords: Crystallography, X-Ray/*instrumentation/*methods ; Humans ; Lasers ; Protein Conformation ; Receptor, Serotonin, 5-HT2B/chemistry/radiation effects ; Receptors, G-Protein-Coupled/*chemistry/radiation effects ; Time Factors
    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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  • 3
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    Genetic and molecular basis of drug resistance and species-specific drug action in schistosome parasites (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-11-23
    Description: Oxamniquine resistance evolved in the human blood fluke (Schistosoma mansoni) in Brazil in the 1970s. We crossed parental parasites differing ~500-fold in drug response, determined drug sensitivity and marker segregation in clonally derived second-generation progeny, and identified a single quantitative trait locus (logarithm of odds = 31) on chromosome 6. A sulfotransferase was identified as the causative gene by using RNA interference knockdown and biochemical complementation assays, and we subsequently demonstrated independent origins of loss-of-function mutations in field-derived and laboratory-selected resistant parasites. These results demonstrate the utility of linkage mapping in a human helminth parasite, while crystallographic analyses of protein-drug interactions illuminate the mode of drug action and provide a framework for rational design of oxamniquine derivatives that kill both S. mansoni and S. haematobium, the two species responsible for 〉99% of schistosomiasis cases worldwide.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4136436/" 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/PMC4136436/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Valentim, Claudia L L -- Cioli, Donato -- Chevalier, Frederic D -- Cao, Xiaohang -- Taylor, Alexander B -- Holloway, Stephen P -- Pica-Mattoccia, Livia -- Guidi, Alessandra -- Basso, Annalisa -- Tsai, Isheng J -- Berriman, Matthew -- Carvalho-Queiroz, Claudia -- Almeida, Marcio -- Aguilar, Hector -- Frantz, Doug E -- Hart, P John -- LoVerde, Philip T -- Anderson, Timothy J C -- 098051/Wellcome Trust/United Kingdom -- 5R21-AI072704/AI/NIAID NIH HHS/ -- 5R21-AI096277/AI/NIAID NIH HHS/ -- C06 RR013556/RR/NCRR NIH HHS/ -- HHSN272201000005I/PHS HHS/ -- R01 AI097576/AI/NIAID NIH HHS/ -- R01-AI097576/AI/NIAID NIH HHS/ -- R21 AI072704/AI/NIAID NIH HHS/ -- R21 AI096277/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2013 Dec 13;342(6164):1385-9. doi: 10.1126/science.1243106. Epub 2013 Nov 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Biochemistry and Pathology, University of Texas Health Science Center, San Antonio, TX 78229, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24263136" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Drug Resistance/*genetics ; Gene Knockdown Techniques ; Genetic Linkage ; Helminth Proteins/*genetics ; Humans ; Molecular Sequence Data ; Mutation ; Oxamniquine/*pharmacology ; Phylogeny ; Protein Conformation ; Quantitative Trait Loci ; RNA Interference ; Schistosoma mansoni/*drug effects/*genetics ; Schistosomicides/*pharmacology ; Sulfotransferases/chemistry/classification/*genetics
    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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    Architecture of an RNA polymerase II transcription pre-initiation complex (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-09-28
    Description: The protein density and arrangement of subunits of a complete, 32-protein, RNA polymerase II (pol II) transcription pre-initiation complex (PIC) were determined by means of cryogenic electron microscopy and a combination of chemical cross-linking and mass spectrometry. The PIC showed a marked division in two parts, one containing all the general transcription factors (GTFs) and the other pol II. Promoter DNA was associated only with the GTFs, suspended above the pol II cleft and not in contact with pol II. This structural principle of the PIC underlies its conversion to a transcriptionally active state; the PIC is poised for the formation of a transcription bubble and descent of the DNA into the pol II cleft.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4039082/" 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/PMC4039082/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Murakami, Kenji -- Elmlund, Hans -- Kalisman, Nir -- Bushnell, David A -- Adams, Christopher M -- Azubel, Maia -- Elmlund, Dominika -- Levi-Kalisman, Yael -- Liu, Xin -- Gibbons, Brian J -- Levitt, Michael -- Kornberg, Roger D -- AI21144/AI/NIAID NIH HHS/ -- GM063817/GM/NIGMS NIH HHS/ -- GM49885/GM/NIGMS NIH HHS/ -- R01 AI021144/AI/NIAID NIH HHS/ -- R01 GM036659/GM/NIGMS NIH HHS/ -- R01 GM063817/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2013 Nov 8;342(6159):1238724. doi: 10.1126/science.1238724. Epub 2013 Sep 26.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Structural Biology, Stanford University, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24072820" target="_blank"〉PubMed〈/a〉
    Keywords: Cryoelectron Microscopy ; DNA, Fungal/chemistry/genetics ; *Gene Expression Regulation, Fungal ; Multiprotein Complexes/*chemistry ; Nucleic Acid Conformation ; Protein Conformation ; RNA Polymerase II/*chemistry ; Saccharomyces cerevisiae/*enzymology/genetics ; Saccharomyces cerevisiae Proteins/*chemistry ; Transcription Factors, General/*chemistry ; *Transcription Initiation, Genetic
    Print ISSN: 0036-8075
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  • 5
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    A strategy for modulation of enzymes in the ubiquitin system (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-01-05
    Description: The ubiquitin system regulates virtually all aspects of cellular function. We report a method to target the myriad enzymes that govern ubiquitination of protein substrates. We used massively diverse combinatorial libraries of ubiquitin variants to develop inhibitors of four deubiquitinases (DUBs) and analyzed the DUB-inhibitor complexes with crystallography. We extended the selection strategy to the ubiquitin conjugating (E2) and ubiquitin ligase (E3) enzymes and found that ubiquitin variants can also enhance enzyme activity. Last, we showed that ubiquitin variants can bind selectively to ubiquitin-binding domains. Ubiquitin variants exhibit selective function in cells and thus enable orthogonal modulation of specific enzymatic steps in the ubiquitin system.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3815447/" 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/PMC3815447/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ernst, Andreas -- Avvakumov, George -- Tong, Jiefei -- Fan, Yihui -- Zhao, Yanling -- Alberts, Philipp -- Persaud, Avinash -- Walker, John R -- Neculai, Ana-Mirela -- Neculai, Dante -- Vorobyov, Andrew -- Garg, Pankaj -- Beatty, Linda -- Chan, Pak-Kei -- Juang, Yu-Chi -- Landry, Marie-Claude -- Yeh, Christina -- Zeqiraj, Elton -- Karamboulas, Konstantina -- Allali-Hassani, Abdellah -- Vedadi, Masoud -- Tyers, Mike -- Moffat, Jason -- Sicheri, Frank -- Pelletier, Laurence -- Durocher, Daniel -- Raught, Brian -- Rotin, Daniela -- Yang, Jianhua -- Moran, Michael F -- Dhe-Paganon, Sirano -- Sidhu, Sachdev S -- 092076/Wellcome Trust/United Kingdom -- 092381/Wellcome Trust/United Kingdom -- 1R01NS072420-01/Canadian Institutes of Health Research/Canada -- MOP-102536/Canadian Institutes of Health Research/Canada -- MOP-111149/Canadian Institutes of Health Research/Canada -- MOP-13494/Canadian Institutes of Health Research/Canada -- MOP-57795/Canadian Institutes of Health Research/Canada -- R01 NS072420/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2013 Feb 1;339(6119):590-5. doi: 10.1126/science.1230161. Epub 2013 Jan 3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Terrence Donnelly Center for Cellular and Biomolecular Research, University of Toronto, 160 College Street, Toronto, Ontario, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23287719" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; *Combinatorial Chemistry Techniques ; Conserved Sequence ; Drug Design ; Endopeptidases/chemistry/*metabolism ; HEK293 Cells ; Humans ; Molecular Sequence Data ; Protease Inhibitors/chemistry/*isolation & purification/pharmacology ; Protein Conformation ; Protein Structure, Secondary ; Small Molecule Libraries ; Ubiquitin/chemistry/genetics/*metabolism ; Ubiquitin Thiolesterase/chemistry/*metabolism ; Ubiquitin-Conjugating Enzymes/chemistry/metabolism ; Ubiquitin-Protein Ligases/chemistry/metabolism ; Ubiquitination/*drug effects
    Print ISSN: 0036-8075
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  • 6
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    Delineating antibody recognition in polyclonal sera from patterns of HIV-1 isolate neutralization (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-05-11
    Description: Serum characterization and antibody isolation are transforming our understanding of the humoral immune response to viral infection. Here, we show that epitope specificities of HIV-1-neutralizing antibodies in serum can be elucidated from the serum pattern of neutralization against a diverse panel of HIV-1 isolates. We determined "neutralization fingerprints" for 30 neutralizing antibodies on a panel of 34 diverse HIV-1 strains and showed that similarity in neutralization fingerprint correlated with similarity in epitope. We used these fingerprints to delineate specificities of polyclonal sera from 24 HIV-1-infected donors and a chimeric siman-human immunodeficiency virus-infected macaque. Delineated specificities matched published specificities and were further confirmed by antibody isolation for two sera. Patterns of virus-isolate neutralization can thus afford a detailed epitope-specific understanding of neutralizing-antibody responses to viral infection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Georgiev, Ivelin S -- Doria-Rose, Nicole A -- Zhou, Tongqing -- Kwon, Young Do -- Staupe, Ryan P -- Moquin, Stephanie -- Chuang, Gwo-Yu -- Louder, Mark K -- Schmidt, Stephen D -- Altae-Tran, Han R -- Bailer, Robert T -- McKee, Krisha -- Nason, Martha -- O'Dell, Sijy -- Ofek, Gilad -- Pancera, Marie -- Srivatsan, Sanjay -- Shapiro, Lawrence -- Connors, Mark -- Migueles, Stephen A -- Morris, Lynn -- Nishimura, Yoshiaki -- Martin, Malcolm A -- Mascola, John R -- Kwong, Peter D -- U19 AI51794/AI/NIAID NIH HHS/ -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2013 May 10;340(6133):751-6. doi: 10.1126/science.1233989.〈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/23661761" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Neutralizing/blood/*immunology ; Epitope Mapping ; HIV Antibodies/blood/*immunology ; HIV Infections/blood/*immunology ; HIV-1/*immunology/isolation & purification ; Humans ; Immunodominant Epitopes/chemistry/immunology ; Macaca ; Neutralization Tests ; Protein Conformation ; Serum/immunology
    Print ISSN: 0036-8075
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  • 7
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    Nuclear lamin-A scales with tissue stiffness and enhances matrix-directed differentiation (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-08-31
    Description: Tissues can be soft like fat, which bears little stress, or stiff like bone, which sustains high stress, but whether there is a systematic relationship between tissue mechanics and differentiation is unknown. Here, proteomics analyses revealed that levels of the nucleoskeletal protein lamin-A scaled with tissue elasticity, E, as did levels of collagens in the extracellular matrix that determine E. Stem cell differentiation into fat on soft matrix was enhanced by low lamin-A levels, whereas differentiation into bone on stiff matrix was enhanced by high lamin-A levels. Matrix stiffness directly influenced lamin-A protein levels, and, although lamin-A transcription was regulated by the vitamin A/retinoic acid (RA) pathway with broad roles in development, nuclear entry of RA receptors was modulated by lamin-A protein. Tissue stiffness and stress thus increase lamin-A levels, which stabilize the nucleus while also contributing to lineage determination.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3976548/" 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/PMC3976548/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Swift, Joe -- Ivanovska, Irena L -- Buxboim, Amnon -- Harada, Takamasa -- Dingal, P C Dave P -- Pinter, Joel -- Pajerowski, J David -- Spinler, Kyle R -- Shin, Jae-Won -- Tewari, Manorama -- Rehfeldt, Florian -- Speicher, David W -- Discher, Dennis E -- 8UL1TR000003/TR/NCATS NIH HHS/ -- CA010815/CA/NCI NIH HHS/ -- HL038794/HL/NHLBI NIH HHS/ -- P01DK032094/DK/NIDDK NIH HHS/ -- P30-DK090969/DK/NIDDK NIH HHS/ -- R01 EB007049/EB/NIBIB NIH HHS/ -- R01 HL062352/HL/NHLBI NIH HHS/ -- R01EB007049/EB/NIBIB NIH HHS/ -- R01HL062352/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2013 Aug 30;341(6149):1240104. doi: 10.1126/science.1240104.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular and Cell Biophysics Laboratory, University of Pennsylvania, Philadelphia, PA 19104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23990565" target="_blank"〉PubMed〈/a〉
    Keywords: Adipogenesis ; Animals ; *Cell Differentiation ; Collagen/analysis/chemistry/metabolism ; *Elasticity ; Extracellular Matrix/chemistry/metabolism ; Gene Expression Regulation, Developmental ; Humans ; Lamin Type A/chemistry/genetics/*metabolism ; Mesenchymal Stromal Cells/*cytology ; Mice ; Models, Biological ; Nuclear Lamina/metabolism ; *Osteogenesis/genetics ; Protein Conformation ; Proteome ; *Stress, Mechanical ; Transcription, Genetic ; Tretinoin/metabolism ; Vitamin A/metabolism
    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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  • 8
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    Structural basis for molecular recognition at serotonin receptors (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-03-23
    Description: Serotonin or 5-hydroxytryptamine (5-HT) regulates a wide spectrum of human physiology through the 5-HT receptor family. We report the crystal structures of the human 5-HT1B G protein-coupled receptor bound to the agonist antimigraine medications ergotamine and dihydroergotamine. The structures reveal similar binding modes for these ligands, which occupy the orthosteric pocket and an extended binding pocket close to the extracellular loops. The orthosteric pocket is formed by residues conserved in the 5-HT receptor family, clarifying the family-wide agonist activity of 5-HT. Compared with the structure of the 5-HT2B receptor, the 5-HT1B receptor displays a 3 angstrom outward shift at the extracellular end of helix V, resulting in a more open extended pocket that explains subtype selectivity. Together with docking and mutagenesis studies, these structures provide a comprehensive structural basis for understanding receptor-ligand interactions and designing subtype-selective serotonergic drugs.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3644373/" 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/PMC3644373/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, Chong -- Jiang, Yi -- Ma, Jinming -- Wu, Huixian -- Wacker, Daniel -- Katritch, Vsevolod -- Han, Gye Won -- Liu, Wei -- Huang, Xi-Ping -- Vardy, Eyal -- McCorvy, John D -- Gao, Xiang -- Zhou, X Edward -- Melcher, Karsten -- Zhang, Chenghai -- Bai, Fang -- Yang, Huaiyu -- Yang, Linlin -- Jiang, Hualiang -- Roth, Bryan L -- Cherezov, Vadim -- Stevens, Raymond C -- Xu, H Eric -- P50 GM073197/GM/NIGMS NIH HHS/ -- R01 DA027170/DA/NIDA NIH HHS/ -- R01 DA27170/DA/NIDA NIH HHS/ -- R01 DK071662/DK/NIDDK NIH HHS/ -- R01 MH061887/MH/NIMH NIH HHS/ -- R01 MH61887/MH/NIMH NIH HHS/ -- U19 MH082441/MH/NIMH NIH HHS/ -- U19 MH82441/MH/NIMH NIH HHS/ -- U54 GM094618/GM/NIGMS NIH HHS/ -- Y1-CO-1020/CO/NCI NIH HHS/ -- Y1-GM-1104/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2013 May 3;340(6132):610-4. doi: 10.1126/science.1232807. Epub 2013 Mar 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Integrative Structural and Computational Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23519210" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding Sites ; Crystallography, X-Ray ; Dihydroergotamine/chemistry/*metabolism ; Ergotamine/chemistry/*metabolism ; Humans ; Hydrogen Bonding ; Hydrophobic and Hydrophilic Interactions ; Ligands ; Lysergic Acid Diethylamide/chemistry/metabolism ; Models, Molecular ; Molecular Docking Simulation ; Molecular Sequence Data ; Mutagenesis ; Norfenfluramine/chemistry/metabolism ; Pindolol/analogs & derivatives/chemistry/metabolism ; Propranolol/chemistry/metabolism ; Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Receptor, Serotonin, 5-HT1B/*chemistry/genetics/*metabolism ; Serotonin 5-HT1 Receptor Agonists/*chemistry/*metabolism ; Tryptamines/chemistry/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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  • 9
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    Unknown
    Structural features for functional selectivity at serotonin receptors (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-03-23
    Description: Drugs active at G protein-coupled receptors (GPCRs) can differentially modulate either canonical or noncanonical signaling pathways via a phenomenon known as functional selectivity or biased signaling. We report biochemical studies showing that the hallucinogen lysergic acid diethylamide, its precursor ergotamine (ERG), and related ergolines display strong functional selectivity for beta-arrestin signaling at the 5-HT2B 5-hydroxytryptamine (5-HT) receptor, whereas they are relatively unbiased at the 5-HT1B receptor. To investigate the structural basis for biased signaling, we determined the crystal structure of the human 5-HT2B receptor bound to ERG and compared it with the 5-HT1B/ERG structure. Given the relatively poor understanding of GPCR structure and function to date, insight into different GPCR signaling pathways is important to better understand both adverse and favorable therapeutic activities.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3644390/" 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/PMC3644390/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wacker, Daniel -- Wang, Chong -- Katritch, Vsevolod -- Han, Gye Won -- Huang, Xi-Ping -- Vardy, Eyal -- McCorvy, John D -- Jiang, Yi -- Chu, Meihua -- Siu, Fai Yiu -- Liu, Wei -- Xu, H Eric -- Cherezov, Vadim -- Roth, Bryan L -- Stevens, Raymond C -- P50 GM073197/GM/NIGMS NIH HHS/ -- R01 DK071662/DK/NIDDK NIH HHS/ -- R01 MH061887/MH/NIMH NIH HHS/ -- R01 MH61887/MH/NIMH NIH HHS/ -- U19 MH082441/MH/NIMH NIH HHS/ -- U19 MH82441/MH/NIMH NIH HHS/ -- U54 GM094618/GM/NIGMS NIH HHS/ -- Y1-CO-1020/CO/NCI NIH HHS/ -- Y1-GM-1104/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2013 May 3;340(6132):615-9. doi: 10.1126/science.1232808. Epub 2013 Mar 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Integrative Structural and Computational Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23519215" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Amino Acid Sequence ; Arrestin/metabolism ; Arrestins/metabolism ; Binding Sites ; Crystallography, X-Ray ; Ergolines/chemistry/metabolism ; Ergotamine/chemistry/*metabolism ; HEK293 Cells ; Humans ; Ligands ; Lysergic Acid Diethylamide/chemistry/metabolism ; Models, Molecular ; Molecular Sequence Data ; Protein Conformation ; Protein Structure, Secondary ; Receptor, Serotonin, 5-HT1B/chemistry/*metabolism ; Receptor, Serotonin, 5-HT2B/*chemistry/*metabolism ; Receptors, Serotonin/chemistry/metabolism ; Signal Transduction
    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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  • 10
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    Unknown
    Phycobilisomes supply excitations to both photosystems in a megacomplex in cyanobacteria (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-11-30
    Description: In photosynthetic organisms, photons are captured by light-harvesting antenna complexes, and energy is transferred to reaction centers where photochemical reactions take place. We describe here the isolation and characterization of a fully functional megacomplex composed of a phycobilisome antenna complex and photosystems I and II from the cyanobacterium Synechocystis PCC 6803. A combination of in vivo protein cross-linking, mass spectrometry, and time-resolved spectroscopy indicates that the megacomplex is organized to facilitate energy transfer but not intercomplex electron transfer, which requires diffusible intermediates and the cytochrome b6f complex. The organization provides a basis for understanding how phycobilisomes transfer excitation energy to reaction centers and how the energy balance of two photosystems is achieved, allowing the organism to adapt to varying ecophysiological conditions.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3947847/" 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/PMC3947847/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, Haijun -- Zhang, Hao -- Niedzwiedzki, Dariusz M -- Prado, Mindy -- He, Guannan -- Gross, Michael L -- Blankenship, Robert E -- 8 P41 GM103422-35/GM/NIGMS NIH HHS/ -- P41 GM103422/GM/NIGMS NIH HHS/ -- P41 RR000954/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2013 Nov 29;342(6162):1104-7. doi: 10.1126/science.1242321.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Washington University in St. Louis, St. Louis, MO 63130, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24288334" target="_blank"〉PubMed〈/a〉
    Keywords: Cross-Linking Reagents/chemistry ; Energy Transfer ; Fluorescence ; *Photosynthesis ; Photosystem I Protein Complex/*chemistry/genetics/isolation & purification ; Photosystem II Protein Complex/*chemistry/genetics/isolation & purification ; Phycobilisomes/*chemistry/genetics/isolation & purification ; Protein Conformation ; Synechocystis/*enzymology
    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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