Phototropin perceives temperature based on the lifetime of its photoactivated state.

abstract：:Myelinated fibers can be demonstrated in thin unstained brain sections of freshly killed uninjected animals. With this method myelinated fibers stand out as clearly as in stained Weigert sections from formalin-fixed brains. Unstained unfixed sections can be viewed under ordinary light within minutes after death of the...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Richter CP,Warner CL

更新日期：1974-03-01 00:00:00

abstract：:We have isolated a segment of DNA from the eukaryote Saccharomyces cerevisiae (baker's yeast) as a viable molecular hybrid of bacteriophage lambda DNA which, when integrated into the chromosome of an E. coli histidine auxotroph, allows this bacterium to grow in the absence of histidine. The nonrevertable, histidine au...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Struhl K,Cameron JR,Davis RW

更新日期：1976-05-01 00:00:00

abstract：:DNA topoisomerase I (top1) is the target of potent anticancer agents, including camptothecins and DNA intercalators, which reversibly stabilize (trap) top1 catalytic intermediates (cleavage complexes). The aim of the present study was to define the structural relationship between the site(s) of covalently bound interc...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Pommier Y,Laco GS,Kohlhagen G,Sayer JM,Kroth H,Jerina DM

更新日期：2000-09-26 00:00:00

abstract：:Genetic potentials (pedigree-estimated breeding value) for milk and for fat were compared in cows grouped according to subclinical stage of bovine leukemia virus infection. Genetic potential for milk production was significantly greater in seropositive cows with persistent lymphocytosis (622 +/- 72 kg) and in seroposi...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Wu MC,Shanks RD,Lewin HA

更新日期：1989-02-01 00:00:00

abstract：:To elucidate cellular diversity and clonal evolution in tissues and tumors, one must resolve genomic heterogeneity in single cells. To this end, we have developed low-cost, mass-producible micro-/nanofluidic chips for DNA extraction from individual cells. These chips have modules that collect genomic DNA for sequencin...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Marie R,Pedersen JN,Bærlocher L,Koprowska K,Pødenphant M,Sabatel C,Zalkovskij M,Mironov A,Bilenberg B,Ashley N,Flyvbjerg H,Bodmer WF,Kristensen A,Mir KU

更新日期：2018-10-30 00:00:00

abstract：:Genome-wide association studies have identified noncoding variants near TBX3 that are associated with PR interval and QRS duration, suggesting that subtle changes in TBX3 expression affect atrioventricular conduction system function. To explore whether and to what extent the atrioventricular conduction system is affec...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Mohan RA,Bosada FM,van Weerd JH,van Duijvenboden K,Wang J,Mommersteeg MTM,Hooijkaas IB,Wakker V,de Gier-de Vries C,Coronel R,Boink GJJ,Bakkers J,Barnett P,Boukens BJ,Christoffels VM

更新日期：2020-08-04 00:00:00

abstract：:Previous studies have shown that the immunosuppressive and carcinogenic polycyclic aromatic hydrocarbon 7,12-dimethylbenz(a)anthracene (DMBA) impairs Ca(2+)-dependent transmembrane signaling in human and murine lymphocytes. The purpose of the present studies was to analyze potential mechanisms of immunosuppression by ...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Archuleta MM,Schieven GL,Ledbetter JA,Deanin GG,Burchiel SW

更新日期：1993-07-01 00:00:00

abstract：:Multiplex assays, involving the simultaneous use of multiple circulating tumor DNA (ctDNA) markers, can improve the performance of liquid biopsies so that they are highly predictive of cancer recurrence. We have developed a single-tube methylation-specific quantitative PCR assay (mqMSP) that uses 10 different methylat...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Jin S,Zhu D,Shao F,Chen S,Guo Y,Li K,Wang Y,Ding R,Gao L,Ma W,Lu T,Li D,Zhang Z,Cai S,Liang X,Song H,Ji L,Li J,Zheng Z,Jiang F,Wu X,Luan J,Zhang H,Yang Z,Cantor CR,Xu C,Ding C

更新日期：2021-02-02 00:00:00

abstract：:The visual (retinoid) cycle, the enzymatic pathway that regenerates chromophore after light absorption, is located primarily in the retinal pigment epithelium (RPE) and is essential for rod photoreceptor survival. Whether this pathway also is essential for cone photoreceptor survival is unknown, and there are no data ...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Jacobson SG,Aleman TS,Cideciyan AV,Heon E,Golczak M,Beltran WA,Sumaroka A,Schwartz SB,Roman AJ,Windsor EA,Wilson JM,Aguirre GD,Stone EM,Palczewski K

更新日期：2007-09-18 00:00:00

abstract：:Genetic switches based on the [Formula: see text] system are master regulators of an array of cellular responses. Recent kinetic experiments have shown that [Formula: see text] can actively remove NF-κB bound to its genetic sites via a process called "molecular stripping." This allows the [Formula: see text] switch to...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Potoyan DA,Zheng W,Komives EA,Wolynes PG

更新日期：2016-01-05 00:00:00

abstract：:The identification and targeting of key molecular drivers of melanoma and breast and lung cancer have substantially improved their therapy. However, subtypes of each of these three common, lethal solid tumors lack identified molecular drivers, and are thus not amenable to targeted therapies. Here we show that pleckstr...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： de Semir D,Bezrookove V,Nosrati M,Dar AA,Wu C,Shen J,Rieken C,Venkatasubramanian M,Miller JR 3rd,Desprez PY,McAllister S,Soroceanu L,Debs RJ,Salomonis N,Schadendorf D,Cleaver JE,Kashani-Sabet M

更新日期：2018-06-19 00:00:00

abstract：:Eukaryotic cells respond to a variety of DNA insults by triggering a common signal transduction cascade, known as checkpoint response, which temporarily halts cell-cycle progression. Although the main players involved in the cascade have been identified, there is still uncertainty about the nature of the structures th...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Marini F,Nardo T,Giannattasio M,Minuzzo M,Stefanini M,Plevani P,Muzi Falconi M

更新日期：2006-11-14 00:00:00

abstract：:Knowledge of the relative contributions of different water sources to intracellular fluids and body water is important for many fields of study, ranging from animal physiology to paleoclimate. The intracellular fluid environment of cells is challenging to study due to the difficulties of accessing and sampling the con...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Li H,Yu C,Wang F,Chang SJ,Yao J,Blake RE

更新日期：2016-05-24 00:00:00

abstract：:Hippocampal mossy fibers, which are the axons of dentate granule cells, form powerful excitatory synapses onto the proximal dendrites of CA3 pyramidal cells. It has long been known that high-affinity binding sites for kainate, a glutamate receptor agonist, are present on mossy fibers. Here we summarize recent experime...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Schmitz D,Mellor J,Frerking M,Nicoll RA

更新日期：2001-09-25 00:00:00

abstract：:Embryogenesis requires the precise activation and repression of many transcriptional regulators. The Polycomb group proteins and the associated H3K27me3 histone mark are essential to maintain the inactive state of many of these genes. Mammalian Hox genes are targets of Polycomb proteins and form local 3D clusters cent...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Vieux-Rochas M,Fabre PJ,Leleu M,Duboule D,Noordermeer D

更新日期：2015-04-14 00:00:00

abstract：:To investigate the evolution of the mammalian sex chromosomes, we have compared the gene content of the X chromosomes in the mammalian groups most distantly related to man (marsupials and monotremes). Previous work established that genes on the long arm of the human X chromosome are conserved on the X chromosomes in a...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Watson JM,Spencer JA,Riggs AD,Graves JA

更新日期：1991-12-15 00:00:00

abstract：:The fluorescence decay functions of individual, specifically labeled tRNAPhe molecules exhibit nonexponential character as a result of conformational dynamics occurring during the measurement on a single molecule. tRNAPhe conformational states that interchange much more slowly are evidenced by the distribution of life...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Jia Y,Sytnik A,Li L,Vladimirov S,Cooperman BS,Hochstrasser RM

更新日期：1997-07-22 00:00:00

abstract：:Proteolytic removal of the pre-segment from growing nascent chains of pre-human placental lactogen (hPL) occurred during in vitro translation of placental mRNA if crude membranes derived from ascites lysates, dog pancreas, or rat liver rough endoplasmic reticulum were added to the translation mixtures. The cotranslati...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Strauss AW,Zimmerman M,Boime I,Ashe B,Mumford RA,Alberts AW

更新日期：1979-09-01 00:00:00

abstract：:Periodicities in the polar/apolar character of the amino acid sequence of a protein can be examined by assigning to each residue a numerical hydrophobicity and searching for periodicity in the resulting one-dimensional function. The strength of each periodic component is the quantity that has been termed the hydrophob...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Eisenberg D,Weiss RM,Terwilliger TC

更新日期：1984-01-01 00:00:00

abstract：:Phylogenetic analysis of Plasmodium parasites has indicated that their modern-day distribution is a result of a series of human-mediated dispersals involving transport between Africa, Europe, America, and Asia. A major outstanding question is the phylogenetic affinity of the malaria causing parasites Plasmodium vivax ...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Gelabert P,Sandoval-Velasco M,Olalde I,Fregel R,Rieux A,Escosa R,Aranda C,Paaijmans K,Mueller I,Gilbert MT,Lalueza-Fox C

更新日期：2016-10-11 00:00:00

abstract：:Understanding protein-protein interactions is central to our understanding of almost all complex biological processes. Computational tools exploiting rapidly growing genomic databases to characterize protein-protein interactions are urgently needed. Such methods should connect multiple scales from evolutionary conserv...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Gueudré T,Baldassi C,Zamparo M,Weigt M,Pagnani A

更新日期：2016-10-25 00:00:00

abstract：:Plasmids have been constructed to generate substrates for the study of proteinases 2A and 3C of poliovirus. They contain the P1 (capsomer precursor) region of the poliovirus genome or P1 and part of P2 (a nonstructural precursor), which can be transcribed and translated in vitro. A transcript containing the entire 5' ...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Nicklin MJ,Kräusslich HG,Toyoda H,Dunn JJ,Wimmer E

更新日期：1987-06-01 00:00:00

abstract：:Hypermutation in immunoglobulin genes produces a high frequency of substitutions of all four bases, which are likely generated by low-fidelity DNA polymerases. Indeed, humans deficient for DNA polymerase (pol) eta have decreased substitutions of A.T base pairs in variable and switch regions. To study the role of pol e...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Martomo SA,Yang WW,Wersto RP,Ohkumo T,Kondo Y,Yokoi M,Masutani C,Hanaoka F,Gearhart PJ

更新日期：2005-06-14 00:00:00

abstract：:The ubiquitous aquaporin channels are able to conduct water across cell membranes, combining the seemingly antagonist functions of a very high selectivity with a remarkable permeability. Whereas molecular details are obvious keys to perform these tasks, the overall efficiency of transport in such nanopores is also str...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Gravelle S,Joly L,Detcheverry F,Ybert C,Cottin-Bizonne C,Bocquet L

更新日期：2013-10-08 00:00:00

abstract：:Four mouse POU domain genomic DNA clones--Brain-1, Brain-2, Brain-4, and Scip--and Brain-2 cDNA, which are expressed in adult brain, were cloned and the coding and noncoding regions of the genes were sequenced. The amino acid sequences of the four POU domains are highly conserved; sequences in other regions of the pro...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Hara Y,Rovescalli AC,Kim Y,Nirenberg M

更新日期：1992-04-15 00:00:00

abstract：:Twenty-five years ago this month, Thomas Gold published a seminal manuscript suggesting the presence of a "deep, hot biosphere" in the Earth's crust. Since this publication, a considerable amount of attention has been given to the study of deep biospheres, their role in geochemical cycles, and their potential to infor...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Colman DR,Poudel S,Stamps BW,Boyd ES,Spear JR

更新日期：2017-07-03 00:00:00

abstract：:The human genome is made up of long DNA segments, the isochores, which are compositionally homogeneous and can be subdivided into a small number of families characterized by different G+C levels. Chromosome in situ suppression hybridization (in which excess unlabeled human DNA is added to suppress hybridization of rep...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Saccone S,De Sario A,Wiegant J,Raap AK,Della Valle G,Bernardi G

更新日期：1993-12-15 00:00:00

abstract：:We used digital fluorescence microscopy to make real-time observations of anaphase chromosome movement and changes in microtubule organization in spindles assembled in Xenopus egg extracts. Anaphase chromosome movement in these extracts resembled that seen in living vertebrate cells. During anaphase chromosomes moved ...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Murray AW,Desai AB,Salmon ED

更新日期：1996-10-29 00:00:00

abstract：:The Toll/IL-1 receptor (TIR) domains are crucial signaling modules during innate immune responses involving the Toll-like receptors (TLRs) and IL-1 receptor (IL-1R). Myeloid differential factor 88 (MyD88) is a central TIR domain-containing adapter molecule responsible for nearly all TLR-mediated signaling and is targe...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Snyder GA,Cirl C,Jiang J,Chen K,Waldhuber A,Smith P,Römmler F,Snyder N,Fresquez T,Dürr S,Tjandra N,Miethke T,Xiao TS

更新日期：2013-04-23 00:00:00

abstract：:Upon stimulation with anti-CD3, suppressor T-cell (Ts) hybridomas and homologous transfectants of T-cell receptor a (TCRalpha) cDNA in the T-cell hybridoma formed a 55-kDa TCRalpha chain derivative that bound both the monoclonal anti-TCRalpha chain and polyclonal antibodies against glycosylation inhibiting factor (GIF...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Ishii Y,Nakano T,Ishizaka K

更新日期：1996-07-09 00:00:00