ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Publication Date: 2019
    Description: 〈p〉Landis 〈i〉et al〈/i〉. claim in their comment that Ca does not bind like a transition metal in Ca(CO)〈sub〉8〈/sub〉. We reject their statement, which is based on a misconception of bonding models and misleading application and interpretation of quantum chemical methods for analyzing chemical bonds.〈/p〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Publication Date: 2019
    Description: 〈p〉We investigated the roles of covalent bonding, separation of surface oxygen, and electrolyte pH on the oxygen evolution reaction (OER) on transition metal oxides by comparing catalytic onset potentials and activities of CaCoO〈sub〉3〈/sub〉 and SrCoO〈sub〉3〈/sub〉. Both cubic, metallic perovskites have similar Co〈sup〉IV〈/sup〉 intermediate spin states and onset potentials, but a substantially smaller lattice parameter and shorter surface oxygen separation make CaCoO〈sub〉3〈/sub〉 a more stable catalyst with increased OER activity. The onset potentials are similar, occurring where H〈sup〉+〈/sup〉 is removed from surface -OH〈sup〉–〈/sup〉, but two competing surface reactions determine the catalytic activity. In one, the surface -O〈sup〉–〈/sup〉 is attacked by electrolyte OH〈sup〉–〈/sup〉 to form the surface -OOH〈sup〉–〈/sup〉; in the other, two -O〈sup〉–〈/sup〉 form a surface peroxide ion and an oxygen vacancy with electrolyte OH〈sup〉–〈/sup〉 attacking the oxygen vacancy. The second pathway can be faster if the surface oxygen separation is smaller.〈/p〉
    Electronic ISSN: 2375-2548
    Topics: Natural Sciences in General
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Publication Date: 2019
    Description: 〈p〉Regulatory T (T〈sub〉reg〈/sub〉) cells are essential for peripheral tolerance and rely on the transcription factor (TF) Foxp3 for their generation and function. Several other TFs are critical for the T〈sub〉reg〈/sub〉 cell program. We found that mice deficient in Bcl11b TF solely in T〈sub〉reg〈/sub〉 cells developed fatal autoimmunity, and Bcl11b-deficient T〈sub〉reg〈/sub〉 cells had severely altered function. Bcl11b KO T〈sub〉reg〈/sub〉 cells showed decreased functional marker levels in homeostatic conditions, inflammation, and tumors. Bcl11b controlled expression of essential T〈sub〉reg〈/sub〉 program genes at steady state and in inflammation. Bcl11b bound to genomic regulatory regions of T〈sub〉reg〈/sub〉 program genes in both human and mouse T〈sub〉reg〈/sub〉 cells, overlapping with Foxp3 binding; these genes showed altered chromatin accessibility in the absence of Bcl11b. Additionally, Bcl11b restrained myeloid and NK cell programs in T〈sub〉reg〈/sub〉 cells. Our study provides new mechanistic insights on the T〈sub〉reg〈/sub〉 cell program and identity control, with major implications for therapies in autoimmunity and cancer.〈/p〉
    Electronic ISSN: 2375-2548
    Topics: Natural Sciences in General
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    Publication Date: 2016-07-03
    Description: Cytosolic RNA sensing is a prerequisite for initiation of innate immune response against RNA viral pathogens. Signaling through RIG-I (retinoic acid–inducible gene I)–like receptors (RLRs) to TBK1 (Tank-binding kinase 1)/IKK (IB kinase ) kinases is transduced by mitochondria-associated MAVS (mitochondrial antiviral signaling protein). However, the precise mechanism of how MAVS-mediated TBK1/IKK activation is strictly controlled still remains obscure. We reported that protein phosphatase magnesium-dependent 1A (PPM1A; also known as PP2Cα), depending on its catalytic ability, dampened the RLR-IRF3 (interferon regulatory factor 3) axis to silence cytosolic RNA sensing signaling. We demonstrated that PPM1A was an inherent partner of the TBK1/IKK complex, targeted both MAVS and TBK1/IKK for dephosphorylation, and thus disrupted MAVS-driven formation of signaling complex. Conversely, a high level of MAVS can dissociate the TBK1/PPM1A complex to override PPM1A-mediated inhibition. Loss of PPM1A through gene ablation in human embryonic kidney 293 cells and mouse primary macrophages enabled robustly enhanced antiviral responses. Consequently, Ppm1a –/– mice resisted to RNA virus attack, and transgenic zebrafish expressing PPM1A displayed profoundly increased RNA virus vulnerability. These findings identify PPM1A as the first known phosphatase of MAVS and elucidate the physiological function of PPM1A in antiviral immunity on whole animals.
    Electronic ISSN: 2375-2548
    Topics: Natural Sciences in General
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    Publication Date: 2019
    Description: 〈p〉Metal-organic frameworks (MOFs) and metal nanoparticles are two classes of materials that have received considerable recent attention, each for controlling chemical reactivities, albeit in very different ways. Here, we report the growth of MOF shell layers surrounding aluminum nanocrystals (Al NCs), an Earth-abundant metal with energetic, plasmonic, and photocatalytic properties. The MOF shell growth proceeds by means of dissolution-and-growth chemistry that uses the intrinsic surface oxide of the NC to obtain the Al〈sup〉3+〈/sup〉 ions accommodated into the MOF nodes. Changes in the Al NC plasmon resonance provide an intrinsic optical probe of its dissolution and growth kinetics. This same chemistry enables a highly controlled oxidation of the Al NCs, providing a precise method for reducing NC size in a shape-preserving manner. The MOF shell encapsulation of the Al NCs results in increased efficiencies for plasmon-enhanced photocatalysis, which is observed for the hydrogen-deuterium exchange and reverse water-gas shift reactions.〈/p〉
    Electronic ISSN: 2375-2548
    Topics: Natural Sciences in General
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    Publication Date: 1999-10-26
    Description: Smad proteins mediate transforming growth factor-beta (TGF-beta) signaling to regulate cell growth and differentiation. The SnoN oncoprotein was found to interact with Smad2 and Smad4 and to repress their abilities to activate transcription through recruitment of the transcriptional corepressor N-CoR. Immediately after TGF-beta stimulation, SnoN is rapidly degraded by the nuclear accumulation of Smad3, allowing the activation of TGF-beta target genes. By 2 hours, TGF-beta induces a marked increase in SnoN expression, resulting in termination of Smad-mediated transactivation. Thus, SnoN maintains the repressed state of TGF-beta-responsive genes in the absence of ligand and participates in negative feedback regulation of TGF-beta signaling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stroschein, S L -- Wang, W -- Zhou, S -- Zhou, Q -- Luo, K -- New York, N.Y. -- Science. 1999 Oct 22;286(5440):771-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Life Sciences Division, Lawrence Berkeley National Laboratory, and Department of Molecular and Cell Biology, University of California, Berkeley, 229 Stanley Hall, Mail Code 3206, Berkeley, CA 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10531062" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Division ; Cell Line ; Cell Nucleus/metabolism ; DNA/metabolism ; DNA-Binding Proteins/genetics/metabolism ; Feedback ; *Gene Expression Regulation ; Humans ; Intracellular Signaling Peptides and Proteins ; Nuclear Proteins/metabolism ; Nuclear Receptor Co-Repressor 1 ; Promoter Regions, Genetic ; Proto-Oncogene Proteins/genetics/*metabolism ; Repressor Proteins/metabolism ; *Signal Transduction ; Smad2 Protein ; Smad3 Protein ; Smad4 Protein ; Trans-Activators/genetics/metabolism ; Transcription Factors/genetics/*metabolism ; Transcriptional Activation ; Transfection ; Transforming Growth Factor beta/*metabolism ; Tumor Cells, Cultured
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    Publication Date: 2001-03-10
    Description: The low solubility of fullerenes in aqueous solution limits their applications in biology. By appropriate substitution, the fullerenes can be transformed into stabilized anions that are water soluble and can form large aggregated structures. A laser light scattering study of the association behavior of the potassium salt of pentaphenyl fullerene (Ph5C60K) in water revealed that the hydrocarbon anions Ph5C60- associate into bilayers, forming stable spherical vesicles with an average hydrodynamic radius and a radius of gyration of about 17 nanometers at a very low critical aggregation concentration of less than 10(-7) moles per liter. The average aggregation number of associated particles in these large spherical vesicles is about 1.2 x 10(4).〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhou, S -- Burger, C -- Chu, B -- Sawamura, M -- Nagahama, N -- Toganoh, M -- Hackler, U E -- Isobe, H -- Nakamura, E -- New York, N.Y. -- Science. 2001 Mar 9;291(5510):1944-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, State University of New York, Stony Brook, NY 11794, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11239150" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 8
    Publication Date: 2006-11-25
    Description: Clostridium novyi-NT is an anaerobic bacterium that can infect hypoxic regions within experimental tumors. Because C. novyi-NT lyses red blood cells, we hypothesized that its membrane-disrupting properties could be exploited to enhance the release of liposome-encapsulated drugs within tumors. Here, we show that treatment of mice bearing large, established tumors with C. novyi-NT plus a single dose of liposomal doxorubicin often led to eradication of the tumors. The bacterial factor responsible for the enhanced drug release was identified as a previously unrecognized protein termed liposomase. This protein could potentially be incorporated into diverse experimental approaches for the specific delivery of chemotherapeutic agents to tumors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cheong, Ian -- Huang, Xin -- Bettegowda, Chetan -- Diaz, Luis A Jr -- Kinzler, Kenneth W -- Zhou, Shibin -- Vogelstein, Bert -- CA062924/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2006 Nov 24;314(5803):1308-11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and the Ludwig Center for Cancer Genetics and Therapeutics, Johns Hopkins Kimmel Comprehensive Cancer Center, Baltimore, MD 21231, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17124324" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antineoplastic Agents/*administration & dosage/pharmacokinetics/therapeutic use ; Bacterial Proteins/chemistry/genetics/*metabolism ; Base Sequence ; Camptothecin/administration & dosage/analogs & ; derivatives/pharmacokinetics/therapeutic use ; Cell Line, Tumor ; Cloning, Molecular ; Clostridium/*chemistry/genetics ; Colorectal Neoplasms/*drug therapy ; Doxorubicin/*administration & dosage/pharmacokinetics/therapeutic use ; Drug Carriers ; Humans ; Lipase/chemistry/genetics/*metabolism ; Lipid Bilayers/chemistry ; Liposomes/chemistry/*metabolism ; Mice ; Molecular Sequence Data ; Mutation ; Neoplasm Transplantation ; Protein Structure, Tertiary
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 9
    Publication Date: 2009-08-08
    Description: Tumor progression is driven by genetic mutations, but little is known about the environmental conditions that select for these mutations. Studying the transcriptomes of paired colorectal cancer cell lines that differed only in the mutational status of their KRAS or BRAF genes, we found that GLUT1, encoding glucose transporter-1, was one of three genes consistently up-regulated in cells with KRAS or BRAF mutations. The mutant cells exhibited enhanced glucose uptake and glycolysis and survived in low-glucose conditions, phenotypes that all required GLUT1 expression. In contrast, when cells with wild-type KRAS alleles were subjected to a low-glucose environment, very few cells survived. Most surviving cells expressed high levels of GLUT1, and 4% of these survivors had acquired KRAS mutations not present in their parents. The glycolysis inhibitor 3-bromopyruvate preferentially suppressed the growth of cells with KRAS or BRAF mutations. Together, these data suggest that glucose deprivation can drive the acquisition of KRAS pathway mutations in human tumors.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2820374/" 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/PMC2820374/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yun, Jihye -- Rago, Carlo -- Cheong, Ian -- Pagliarini, Ray -- Angenendt, Philipp -- Rajagopalan, Harith -- Schmidt, Kerstin -- Willson, James K V -- Markowitz, Sandy -- Zhou, Shibin -- Diaz, Luis A Jr -- Velculescu, Victor E -- Lengauer, Christoph -- Kinzler, Kenneth W -- Vogelstein, Bert -- Papadopoulos, Nickolas -- CA43460/CA/NCI NIH HHS/ -- CA62924/CA/NCI NIH HHS/ -- R37 CA043460/CA/NCI NIH HHS/ -- R37 CA043460-27/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2009 Sep 18;325(5947):1555-9. doi: 10.1126/science.1174229. Epub 2009 Aug 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Ludwig Center for Cancer Genetics and Therapeutics and Howard Hughes Medical Institute, Johns Hopkins Kimmel Cancer Center, Baltimore, MD 21231, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19661383" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line, Tumor ; Cell Proliferation ; Colorectal Neoplasms/*genetics/metabolism ; Gene Expression Regulation, Neoplastic ; Gene Targeting ; *Genes, ras ; Glucose/*metabolism ; Glucose Transporter Type 1/genetics/metabolism ; Glycolysis/drug effects ; Humans ; Lactic Acid/metabolism ; Mice ; Mice, Nude ; *Mutation ; Neoplasm Transplantation ; Oligonucleotide Array Sequence Analysis ; Proto-Oncogene Proteins B-raf/*genetics ; Pyruvates/pharmacology ; Transplantation, Heterologous
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 10
    Publication Date: 2009-12-08
    Description: We report an improved draft nucleotide sequence of the 2.3-gigabase genome of maize, an important crop plant and model for biological research. Over 32,000 genes were predicted, of which 99.8% were placed on reference chromosomes. Nearly 85% of the genome is composed of hundreds of families of transposable elements, dispersed nonuniformly across the genome. These were responsible for the capture and amplification of numerous gene fragments and affect the composition, sizes, and positions of centromeres. We also report on the correlation of methylation-poor regions with Mu transposon insertions and recombination, and copy number variants with insertions and/or deletions, as well as how uneven gene losses between duplicated regions were involved in returning an ancient allotetraploid to a genetically diploid state. These analyses inform and set the stage for further investigations to improve our understanding of the domestication and agricultural improvements of maize.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schnable, Patrick S -- Ware, Doreen -- Fulton, Robert S -- Stein, Joshua C -- Wei, Fusheng -- Pasternak, Shiran -- Liang, Chengzhi -- Zhang, Jianwei -- Fulton, Lucinda -- Graves, Tina A -- Minx, Patrick -- Reily, Amy Denise -- Courtney, Laura -- Kruchowski, Scott S -- Tomlinson, Chad -- Strong, Cindy -- Delehaunty, Kim -- Fronick, Catrina -- Courtney, Bill -- Rock, Susan M -- Belter, Eddie -- Du, Feiyu -- Kim, Kyung -- Abbott, Rachel M -- Cotton, Marc -- Levy, Andy -- Marchetto, Pamela -- Ochoa, Kerri -- Jackson, Stephanie M -- Gillam, Barbara -- Chen, Weizu -- Yan, Le -- Higginbotham, Jamey -- Cardenas, Marco -- Waligorski, Jason -- Applebaum, Elizabeth -- Phelps, Lindsey -- Falcone, Jason -- Kanchi, Krishna -- Thane, Thynn -- Scimone, Adam -- Thane, Nay -- Henke, Jessica -- Wang, Tom -- Ruppert, Jessica -- Shah, Neha -- Rotter, Kelsi -- Hodges, Jennifer -- Ingenthron, Elizabeth -- Cordes, Matt -- Kohlberg, Sara -- Sgro, Jennifer -- Delgado, Brandon -- Mead, Kelly -- Chinwalla, Asif -- Leonard, Shawn -- Crouse, Kevin -- Collura, Kristi -- Kudrna, Dave -- Currie, Jennifer -- He, Ruifeng -- Angelova, Angelina -- Rajasekar, Shanmugam -- Mueller, Teri -- Lomeli, Rene -- Scara, Gabriel -- Ko, Ara -- Delaney, Krista -- Wissotski, Marina -- Lopez, Georgina -- Campos, David -- Braidotti, Michele -- Ashley, Elizabeth -- Golser, Wolfgang -- Kim, HyeRan -- Lee, Seunghee -- Lin, Jinke -- Dujmic, Zeljko -- Kim, Woojin -- Talag, Jayson -- Zuccolo, Andrea -- Fan, Chuanzhu -- Sebastian, Aswathy -- Kramer, Melissa -- Spiegel, Lori -- Nascimento, Lidia -- Zutavern, Theresa -- Miller, Beth -- Ambroise, Claude -- Muller, Stephanie -- Spooner, Will -- Narechania, Apurva -- Ren, Liya -- Wei, Sharon -- Kumari, Sunita -- Faga, Ben -- Levy, Michael J -- McMahan, Linda -- Van Buren, Peter -- Vaughn, Matthew W -- Ying, Kai -- Yeh, Cheng-Ting -- Emrich, Scott J -- Jia, Yi -- Kalyanaraman, Ananth -- Hsia, An-Ping -- Barbazuk, W Brad -- Baucom, Regina S -- Brutnell, Thomas P -- Carpita, Nicholas C -- Chaparro, Cristian -- Chia, Jer-Ming -- Deragon, Jean-Marc -- Estill, James C -- Fu, Yan -- Jeddeloh, Jeffrey A -- Han, Yujun -- Lee, Hyeran -- Li, Pinghua -- Lisch, Damon R -- Liu, Sanzhen -- Liu, Zhijie -- Nagel, Dawn Holligan -- McCann, Maureen C -- SanMiguel, Phillip -- Myers, Alan M -- Nettleton, Dan -- Nguyen, John -- Penning, Bryan W -- Ponnala, Lalit -- Schneider, Kevin L -- Schwartz, David C -- Sharma, Anupma -- Soderlund, Carol -- Springer, Nathan M -- Sun, Qi -- Wang, Hao -- Waterman, Michael -- Westerman, Richard -- Wolfgruber, Thomas K -- Yang, Lixing -- Yu, Yeisoo -- Zhang, Lifang -- Zhou, Shiguo -- Zhu, Qihui -- Bennetzen, Jeffrey L -- Dawe, R Kelly -- Jiang, Jiming -- Jiang, Ning -- Presting, Gernot G -- Wessler, Susan R -- Aluru, Srinivas -- Martienssen, Robert A -- Clifton, Sandra W -- McCombie, W Richard -- Wing, Rod A -- Wilson, Richard K -- New York, N.Y. -- Science. 2009 Nov 20;326(5956):1112-5. doi: 10.1126/science.1178534.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Plant Genomics, Iowa State University, Ames, IA 50011, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965430" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Centromere/genetics ; Chromosome Mapping ; Chromosomes, Plant/genetics ; Crops, Agricultural/genetics ; DNA Copy Number Variations ; DNA Methylation ; DNA Transposable Elements ; DNA, Plant/genetics ; Genes, Plant ; *Genetic Variation ; *Genome, Plant ; Inbreeding ; MicroRNAs/genetics ; Molecular Sequence Data ; Ploidies ; RNA, Plant/genetics ; Recombination, Genetic ; Retroelements ; *Sequence Analysis, DNA ; Zea mays/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...