ALBERT

Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- Kaiser, Jocelyn -- Service, Robert F -- Gibbons, Ann -- Vogel, Gretchen -- Underwood, Emily -- Hand, Eric -- New York, N.Y. -- Science. 2014 Dec 19;346(6216):1444-9. doi: 10.1126/science.346.6216.1444. Epub 2014 Dec 18.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25525224" target="_blank"〉PubMed〈/a〉

Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Becher, Oren J -- Wechsler-Reya, Robert J -- R01 CA159859/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2014 Dec 19;346(6216):1458-9. doi: 10.1126/science.aaa3814.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Pediatric Hematology-Oncology, Department of Pathology, and Preston Robert Tisch Brain Tumor Center, Duke University, Durham, NC, 27710, USA. rwreya@sanfordburnham.org oren.becher@duke.edu. ; Tumor Initiation & Maintenance Program, NCI-Designated Cancer Center, Sanford-Burnham Medical Research Institute, La Jolla, CA, 92037, USA. rwreya@sanfordburnham.org oren.becher@duke.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25525232" target="_blank"〉PubMed〈/a〉

Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cohen, Jon -- New York, N.Y. -- Science. 2014 Dec 19;346(6216):1450-1. doi: 10.1126/science.346.6216.1450-b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25525227" target="_blank"〉PubMed〈/a〉

Beschreibung: The generation of new enzymatic activities has mainly relied on repurposing the interiors of preexisting protein folds because of the challenge in designing functional, three-dimensional protein structures from first principles. Here we report an artificial metallo-beta-lactamase, constructed via the self-assembly of a structurally and functionally unrelated, monomeric redox protein into a tetrameric assembly that possesses catalytic zinc sites in its interfaces. The designed metallo-beta-lactamase is functional in the Escherichia coli periplasm and enables the bacteria to survive treatment with ampicillin. In vivo screening of libraries has yielded a variant that displays a catalytic proficiency [(k(cat)/K(m))/k(uncat)] for ampicillin hydrolysis of 2.3 x 10(6) and features the emergence of a highly mobile loop near the active site, a key component of natural beta-lactamases to enable substrate interactions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Song, Woon Ju -- Tezcan, F Akif -- New York, N.Y. -- Science. 2014 Dec 19;346(6216):1525-8. doi: 10.1126/science.1259680.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093-0356, USA. ; Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093-0356, USA. tezcan@ucsd.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25525249" target="_blank"〉PubMed〈/a〉

Beschreibung: Evolution and design of protein complexes are almost always viewed through the lens of amino acid mutations at protein interfaces. We showed previously that residues not involved in the physical interaction between proteins make important contributions to oligomerization by acting indirectly or allosterically. In this work, we sought to investigate the mechanism by which allosteric mutations act, using the example of the PyrR family of pyrimidine operon attenuators. In this family, a perfectly sequence-conserved helix that forms a tetrameric interface is exposed as solvent-accessible surface in dimeric orthologs. This means that mutations must be acting from a distance to destabilize the interface. We identified 11 key mutations controlling oligomeric state, all distant from the interfaces and outside ligand-binding pockets. Finally, we show that the key mutations introduce conformational changes equivalent to the conformational shift between the free versus nucleotide-bound conformations of the proteins.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4337988/" 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/PMC4337988/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Perica, Tina -- Kondo, Yasushi -- Tiwari, Sandhya P -- McLaughlin, Stephen H -- Kemplen, Katherine R -- Zhang, Xiuwei -- Steward, Annette -- Reuter, Nathalie -- Clarke, Jane -- Teichmann, Sarah A -- 095195/Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2014 Dec 19;346(6216):1254346. doi: 10.1126/science.1254346.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge CB10 1SD, UK. Medical Research Council (MRC) Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge Biomedical Campus, Cambridge CB2 0QH, UK. ; Medical Research Council (MRC) Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge Biomedical Campus, Cambridge CB2 0QH, UK. ; Department of Molecular Biology, University of Bergen University of Bergen, P.O. Box 7803, N-5020 Bergen, Norway. Computational Biology Unit, Department of Informatics, University of Bergen, P.O. Box 7803, N-5020 Bergen, Norway. ; Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK. ; European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge CB10 1SD, UK. ; European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge CB10 1SD, UK. saraht@ebi.ac.uk.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25525255" target="_blank"〉PubMed〈/a〉

Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 2014 Dec 19;346(6216):1450. doi: 10.1126/science.346.6216.1450-a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25525226" target="_blank"〉PubMed〈/a〉

Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 2014 Dec 19;346(6216):1449. doi: 10.1126/science.346.6216.1449.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25525225" target="_blank"〉PubMed〈/a〉

Beschreibung: The conservation of large carnivores is a formidable challenge for biodiversity conservation. Using a data set on the past and current status of brown bears (Ursus arctos), Eurasian lynx (Lynx lynx), gray wolves (Canis lupus), and wolverines (Gulo gulo) in European countries, we show that roughly one-third of mainland Europe hosts at least one large carnivore species, with stable or increasing abundance in most cases in 21st-century records. The reasons for this overall conservation success include protective legislation, supportive public opinion, and a variety of practices making coexistence between large carnivores and people possible. The European situation reveals that large carnivores and people can share the same landscape.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chapron, Guillaume -- Kaczensky, Petra -- Linnell, John D C -- von Arx, Manuela -- Huber, Djuro -- Andren, Henrik -- Lopez-Bao, Jose Vicente -- Adamec, Michal -- Alvares, Francisco -- Anders, Ole -- Balciauskas, Linas -- Balys, Vaidas -- Bedo, Peter -- Bego, Ferdinand -- Blanco, Juan Carlos -- Breitenmoser, Urs -- Broseth, Henrik -- Bufka, Ludek -- Bunikyte, Raimonda -- Ciucci, Paolo -- Dutsov, Alexander -- Engleder, Thomas -- Fuxjager, Christian -- Groff, Claudio -- Holmala, Katja -- Hoxha, Bledi -- Iliopoulos, Yorgos -- Ionescu, Ovidiu -- Jeremic, Jasna -- Jerina, Klemen -- Kluth, Gesa -- Knauer, Felix -- Kojola, Ilpo -- Kos, Ivan -- Krofel, Miha -- Kubala, Jakub -- Kunovac, Sasa -- Kusak, Josip -- Kutal, Miroslav -- Liberg, Olof -- Majic, Aleksandra -- Mannil, Peep -- Manz, Ralph -- Marboutin, Eric -- Marucco, Francesca -- Melovski, Dime -- Mersini, Kujtim -- Mertzanis, Yorgos -- Myslajek, Robert W -- Nowak, Sabina -- Odden, John -- Ozolins, Janis -- Palomero, Guillermo -- Paunovic, Milan -- Persson, Jens -- Potocnik, Hubert -- Quenette, Pierre-Yves -- Rauer, Georg -- Reinhardt, Ilka -- Rigg, Robin -- Ryser, Andreas -- Salvatori, Valeria -- Skrbinsek, Tomaz -- Stojanov, Aleksandar -- Swenson, Jon E -- Szemethy, Laszlo -- Trajce, Aleksander -- Tsingarska-Sedefcheva, Elena -- Vana, Martin -- Veeroja, Rauno -- Wabakken, Petter -- Wolfl, Manfred -- Wolfl, Sybille -- Zimmermann, Fridolin -- Zlatanova, Diana -- Boitani, Luigi -- New York, N.Y. -- Science. 2014 Dec 19;346(6216):1517-9. doi: 10.1126/science.1257553.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Grimso Wildlife Research Station, Department of Ecology, Swedish University of Agricultural Sciences, 73091 Riddarhyttan, Sweden. gchapron@carnivoreconservation.org guillaume.chapron@slu.se. ; Research Institute of Wildlife Ecology, University of Veterinary Medicine, Vienna, Savoyenstrasse 1, 1160 Vienna, Austria. ; Norwegian Institute for Nature Research, Post Office Box 5685 Sluppen, 7485 Trondheim, Norway. ; KORA, Thunstrasse 31, 3074 Muri bei Bern, Switzerland. ; Biology Department of the Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, 10000 Zagreb, Croatia. ; Grimso Wildlife Research Station, Department of Ecology, Swedish University of Agricultural Sciences, 73091 Riddarhyttan, Sweden. ; Grimso Wildlife Research Station, Department of Ecology, Swedish University of Agricultural Sciences, 73091 Riddarhyttan, Sweden. Research Unit of Biodiversity (UO/CSIC/PA), Oviedo University, 33600 Mieres, Spain. ; State Nature Conservancy of Slovak Republic, Tajovskeho 28B, 974 01 Banska Bystrica, Slovakia. ; CIBIO/InBio, Centro de Investigacao em Biodiversidade e Recursos Geneticos, Universidade do Porto, 4485-661 Vairao, Portugal. ; Harz Nationalpark, Lindenallee 35, 38855 Wernigerode, Germany. ; Nature Research Centre, Akademijos 2, 08412 Vilnius, Lithuania. ; Association for Nature Conservation "Baltijos vilkas," Visoriu 6A-54, 08300 Vilnius, Lithuania. ; Slovak Wildlife Society, Post Office Box 72, 03301 Liptovsky Hradok, Slovakia. ; Biology Department of the Faculty of Natural Sciences, University of Tirana, Boulevard Zog I, Tirana, Albania. ; Wolf Project, Consultores en Biologia de la Conservacion, Calle Manuela Malasana 24, 28004 Madrid, Spain. ; KORA, Thunstrasse 31, 3074 Muri bei Bern, Switzerland. Centre for Fish and Wildlife Health, Vetsuisse Faculty, University of Bern, Langgassstrasse 122, 3012 Bern, Switzerland. ; Department of Game Management and Wildlife Biology, Czech University of Life Sciences in Prague, Kamycka 129, 165 21 Prague, Czech Republic. ; Ministry of Environment of the Republic of Lithuania, Jaksto 4/9, 01105 Vilnius, Lithuania. ; Department of Biology and Biotechnologies, University of Rome "La Sapienza," Viale dell'Universita 32, 00185 Roma, Italy. ; Balkani Wildlife Society, Boulevard Dragan Tzankov 8, 1164 Sofia, Bulgaria. ; Lynx Project Austria Northwest, Linzerstrasse 14, 4170 Haslach/Muhl, Austria. ; Nationalpark Kalkalpen, Nationalpark Zentrum Molln, Nationalpark Allee 1, 4591 Molln, Austria. ; Provincia Autonoma di Trento - Servizio Foreste e Fauna, Via Trener no. 3, 38100 Trento, Italy. ; Finnish Game and Fisheries Research Institute, Viikinkaari 4, 00790 Helsinki, Finland. ; Protection and Preservation of Natural Environment in Albania, Rruga Vangjush Furxhi 16/1/10, Tirana, Albania. ; Callisto Wildlife and Nature Conservation Society, Mitropoleos 123, 54621 Thessaloniki, Greece. ; Faculty of Silviculture and Forest Engineering, Department of Silviculture, Transilvania University, 1 Beethoven Lane, 500123 Brasov, Romania. Forest Research Institute (ICAS) Bulevardul Eroilor Number 128, Voluntari, Ilfov, 077190 Romania. ; State Institute for Nature Protection, Trg Mazuranica 5, 10000 Zagreb, Croatia. ; University of Ljubljana, Biotechnical Faculty, Jamnikarjeva 101, 1000 Ljubljana, Slovenia. ; LUPUS - German Institute for Wolf Mnitoring and Research, Dorfstrasse 20, 02979 Spreewitz, Germany. ; Finnish Game and Fisheries Research Institute, Oulu Game and Fisheries Research, Tutkijantie 2E, 90570 Oulu, Finland. ; Department of Forest Protection and Game Management, Faculty of Forestry, Technical University of Zvolen, T.G. Masaryka 20, 960 53 Zvolen, Slovakia. ; Faculty of Forestry, University of Sarajevo, Zagrebacka 20, 71000 Sarajevo, Bosnia and Herzegovina. ; Department of Forest Protection and Wildlife Management, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemedelska 3, 61300 Brno, Czech Republic. Friends of the Earth Czech Republic, Olomouc Branch, Dolni Namesti 38, 77900 Olomouc, Czech Republic. ; Estonian Environment Agency, Roomu tee 2, 51013 Tartu, Estonia. ; Office National de la Chasse et de la Faune Sauvage, ZI Mayencin, 5 Allee de Bethleem, 38610 Gieres, France. ; Centro Gestione e Conservazione Grandi Carnivori, Piazza Regina Elena 30, Valdieri 12010, Italy. ; Macedonian Ecological Society, Arhimedova 5, Skopje 1000, FYR Macedonia. Department of Wildlife Sciences, Georg-August University, Busgenweg 3, 37077 Gottingen, Germany. ; National Veterinary Epidemiology Unit, Food Safety and Veterinary Institute, Rruga Aleksander Moisiu 10 Tirana, Albania. ; Institute of Genetics and Biotechnology, Faculty of Biology, University of Warsaw, Pawinskiego 5a, 02-106 Warszawa, Poland. ; Association for Nature "Wolf," Twardorzeczka 229, 34-324 Lipowa, Poland. ; Latvian State Forest Research Institute "Silava," Rigas Iela 111, Salaspils, 2169 Latvia. ; Fundacion Oso Pardo, Calle San Luis 17, 4 degrees A, 39010 Santander, Spain. ; Natural History Museum, Njegoseva 51, 11000 Belgrade, Serbia. ; ONCFS-CNERA PAD, Equipe Ours, Chef de Projet, Impasse de la Chapelle, 31800 Villeneuve de Riviere, France. ; Istituto di Ecologia Applicata, Via B. Eustachio 10, 00161 Rome, Italy. ; Macedonian Ecological Society, Arhimedova 5, Skopje 1000, FYR Macedonia. ; Norwegian Institute for Nature Research, Post Office Box 5685 Sluppen, 7485 Trondheim, Norway. Department of Ecology and Natural Resource Management, Norwegian University of Life Sciences, Postbox 5003, 1432 As, Norway. ; St. Istvan Unversity Institute for Wildlife Conservation, Pater Karoly 1, 2103 Godollo, Hungary. ; Friends of the Earth Czech Republic, Olomouc Branch, Dolni Namesti 38, 77900 Olomouc, Czech Republic. ; Hedmark University College, Evenstad, 2480 Koppang, Norway. ; Bavarian Agency of Environment, Hans-Hogn-Strasse 12, 95030 Hof/Saale, Germany. ; Lynx Project Bavaria, Trailling 1a, 93462 Lam, Germany. ; Department of Zoology and Anthropology, Faculty of Biology/Sofia University "St. Kliment Ohridski," Boulevard Dragan Tzankov 8, 1164 Sofia, Bulgaria.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25525247" target="_blank"〉PubMed〈/a〉

Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lorsch, Jon R -- Collins, Francis S -- Lippincott-Schwartz, Jennifer -- New York, N.Y. -- Science. 2014 Dec 19;346(6216):1452-3. doi: 10.1126/science.1259110.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Director, National Institute of General Medical Sciences, Bethesda, MD 20892, USA. jon.lorsch@nih.gov. ; Director, National Institutes of Health, Bethesda, MD 20892, USA. ; President, American Society for Cell Biology, Bethesda, MD 20814, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25525228" target="_blank"〉PubMed〈/a〉

Beschreibung: Over 70% of diffuse intrinsic pediatric gliomas, an aggressive brainstem tumor, harbor heterozygous mutations that create a K27M amino acid substitution (methionine replaces lysine 27) in the tail of histone H3.3. The role of the H3.3K27M mutation in tumorigenesis is not fully understood. Here, we use a human embryonic stem cell system to model this tumor. We show that H3.3K27M expression synergizes with p53 loss and PDGFRA activation in neural progenitor cells derived from human embryonic stem cells, resulting in neoplastic transformation. Genome-wide analyses indicate a resetting of the transformed precursors to a developmentally more primitive stem cell state, with evidence of major modifications of histone marks at several master regulator genes. Drug screening assays identified a compound targeting the protein menin as an inhibitor of tumor cell growth in vitro and in mice.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Funato, Kosuke -- Major, Tamara -- Lewis, Peter W -- Allis, C David -- Tabar, Viviane -- New York, N.Y. -- Science. 2014 Dec 19;346(6216):1529-33. doi: 10.1126/science.1253799. Epub 2014 Nov 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurosurgery, Center for Stem Cell Biology and Brain Tumor Center, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA. ; Department of Biomolecular Chemistry, School of Medicine and Public Health, University of Wisconsin, Madison, WI 53715, USA. ; Laboratory of Chromatin Biology and Epigenetics, The Rockefeller University, New York, NY 10065, USA. ; Department of Neurosurgery, Center for Stem Cell Biology and Brain Tumor Center, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA. tabarv@mskcc.org.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25525250" target="_blank"〉PubMed〈/a〉