False beliefs about fattening foods can have healthy consequences.

abstract：:Recombination is unknown in natural populations of Rivulus marmoratus, a selfing hermaphrodite, and genetic variation is likely due to mutation alone. DNA fingerprinting with an array of microsatellite [e.g., (CT)9] and minisatellite (e.g., the 33.15 core sequence) probes reveals very high clonal diversity within samp...

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

authors： Turner BJ,Elder JF Jr,Laughlin TF,Davis WP,Taylor DS

更新日期：1992-11-15 00:00:00

abstract：:Thymopoietin, a polypeptide hormone of the thymus that has pleiotropic actions on the immune, endocrine, and nervous systems, potently interacts with the neuromuscular nicotinic acetylcholine receptor. Thymopoietin binds to the nicotinic alpha-bungarotoxin (alpha-BGT) receptor in muscle and, like alpha-BGT, inhibits c...

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

authors： Quik M,Babu U,Audhya T,Goldstein G

更新日期：1991-03-15 00:00:00

abstract：:Green fluorescent protein (GFP) is widely used as a reporter gene in both prokaryotes and eukaryotes. However, the fluorescence levels of wild-type GFP (wtGFP) are not bright enough for fluorescence-activated cell sorting or flow cytometry. Several GFP variants were generated that are brighter or have altered excitati...

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

authors： Anderson MT,Tjioe IM,Lorincz MC,Parks DR,Herzenberg LA,Nolan GP,Herzenberg LA

更新日期：1996-08-06 00:00:00

abstract：:The last 500 million years of the strontium-isotope record are shown to correlate significantly with the concurrent record of isotopic fractionation between inorganic and organic carbon after the effects of recycled sediment are removed from the strontium signal. The correlation is shown to result from the common depe...

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

authors： Rothman DH

更新日期：2002-04-02 00:00:00

abstract：:Ancient societies are often used to illustrate the potential problems stemming from unsustainable land-use practices because the past seems rife with examples of sociopolitical "collapse" associated with the exhaustion of finite resources. Just as frequently, and typically in response to such presentations, archaeolog...

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

authors： Wills WH,Drake BL,Dorshow WB

更新日期：2014-08-12 00:00:00

abstract：:This paper describes experiments in which cytosolic Ca2+ concentrations ([Ca2+]i) and catecholamine release were measured in two populations of chromaffin cells stimulated with a solution enriched in K+ (100 mM). Once depolarized, external Ca2+ or Ba2+ ions were offered to cells either as a single 2.5 mM step or as a ...

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

authors： Michelena P,García-Pérez LE,Artalejo AR,García AG

更新日期：1993-04-15 00:00:00

abstract：:Proteins potentiated by epidermal growth factor (EGF) to induce a transformed phenotype in non-neoplastic rat kidney fibroblasts in cell culture have been isolated from many non-neoplastic tissues of the adult mouse, including submaxillary gland, kidney, liver, muscle, heart, and brain. They resemble previously descri...

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

authors： Roberts AB,Anzano MA,Lamb LC,Smith JM,Sporn MB

更新日期：1981-09-01 00:00:00

abstract：:We synthesized a series of octapeptide analogs of somatostatin, containing N-terminal tryptophan or another amino acid followed by the hexapeptide sequences Cys-Phe-D-Trp-Lys-Thr-Cys or Cys-Tyr-D-Trp-Lys-Val-Cys and a C-terminal threoninamide or tryptophanamide. After purification by HPLC, the inhibitory activities of...

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

authors： Cai RZ,Karashima T,Guoth J,Szoke B,Olsen D,Schally AV

更新日期：1987-04-01 00:00:00

abstract：:Murine embryonal carcinoma (EC) cells are refractory to infection by retroviruses because retroviral long terminal repeat (LTR) enhancers have little activity in EC cells. A previous report described the isolation of clonal EC cell lines that express the integrated neomycin-resistance gene (neo) linked to the Moloney ...

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

authors： Taketo M,Tanaka M

更新日期：1987-06-01 00:00:00

abstract：:Using data from the North American Breeding Bird Survey, we determined that most neotropical migrant bird species that breed in forests of the eastern United States and Canada have recently (1978-1987) declined in abundance after a period of stable or increasing populations. Most permanent residents and temperate-zone...

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

authors： Robbins CS,Sauer JR,Greenberg RS,Droege S

更新日期：1989-10-01 00:00:00

abstract：:The oxidative capacity of cat skeletal muscles (soleus, gracilis, and gracilis chronically stimulated for 28 days) was derived from the total mitochondrial content in the muscle, the surface area of mitochondrial inner membranes, and respiratory activities of isolated mitochondria. Mitochondrial content was estimated ...

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

authors： Schwerzmann K,Hoppeler H,Kayar SR,Weibel ER

更新日期：1989-03-01 00:00:00

abstract：:The transcription factor cAMP response element (CRE)-binding protein (CREB) has been shown to regulate neural plasticity. Drugs of abuse activate CREB in the nucleus accumbens, an important part of the brain's reward pathways, and local manipulations of CREB activity have been shown to affect cocaine reward, suggestin...

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

authors： Barrot M,Olivier JD,Perrotti LI,DiLeone RJ,Berton O,Eisch AJ,Impey S,Storm DR,Neve RL,Yin JC,Zachariou V,Nestler EJ

更新日期：2002-08-20 00:00:00

abstract：:Learning and memory rely on dopamine and downstream cAMP-dependent plasticity across diverse organisms. Despite the central role of cAMP signaling, it is not known how cAMP-dependent plasticity drives coherent changes in neuronal physiology that encode the memory trace, or engram. In Drosophila, the mushroom body (MB)...

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

authors： Louis T,Stahl A,Boto T,Tomchik SM

更新日期：2018-01-16 00:00:00

abstract：:Two formal models of clonal attenuation [Kirkwood, T. B. L. & Holliday, R. (1975) J. Theor. Biol. 53, 481-496; Shall, S. & Stein, W. D. (1979) J. Theor. Biol. 76, 219-231] are considered in the light of recent data on the changing distribution of replicative potential among individual cultured fibroblasts on subclonin...

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

authors： Prothero J,Gallant JA

更新日期：1981-01-01 00:00:00

abstract：:The his4 region of yeast contains the information necessary for the catalysis of three steps in the histidine biosynthetic pathway. The three activities specified by this region remain physically associated during gel filtration and ultracentrifugation and after extensive purification. Nonsense mutations in the "opera...

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

authors： Shaffer B,Rytka J,Fink GR

更新日期：1969-08-01 00:00:00

abstract：:Most growth factors are initially synthesized as precursor proteins and subsequently processed into their mature form by proteolytic cleavage, resulting in simultaneous removal of a pro-peptide. However, compared with that of mature form, the biological role of the pro-peptide is poorly understood. Here, we investigat...

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

authors： Mizui T,Ishikawa Y,Kumanogoh H,Lume M,Matsumoto T,Hara T,Yamawaki S,Takahashi M,Shiosaka S,Itami C,Uegaki K,Saarma M,Kojima M

更新日期：2015-06-09 00:00:00

abstract：:The primate visual motion system performs numerous functions essential for survival in a dynamic visual world. Prominent among these functions is the ability to recover and represent the trajectories of objects in a form that facilitates behavioral responses to those movements. The first step toward this goal, which c...

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

authors： Albright TD,Stoner GR

更新日期：1995-03-28 00:00:00

abstract：:Diisopropyl fluorophosphate (DFP) causes neurotoxicity related to an irreversible inhibition of acetylcholinesterase (AChE). Management of this intoxication includes: (i) pretreatment with reversible blockers of AChE, (ii) blockade of muscarinic receptors with atropine, and (iii) facilitation of GABA(A) receptor signa...

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

authors： Pibiri F,Kozikowski AP,Pinna G,Auta J,Kadriu B,Costa E,Guidotti A

更新日期：2008-09-16 00:00:00

abstract：:We describe here the 1.7-A resolution structure of a single-chain antibody variable domain (scFv) molecule, based on the carbohydrate-binding antibody Se155-4, complexed with the trisaccharide ligand alpha-D-Gal(1-->2)[alpha-D-Abe(1-->3)]alpha-D-Manp1-->OMe, where Abe is abequose. The scFv expressed in Escherichia col...

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

authors： Zdanov A,Li Y,Bundle DR,Deng SJ,MacKenzie CR,Narang SA,Young NM,Cygler M

更新日期：1994-07-05 00:00:00

abstract：:Stearoyl-acyl-carrier-protein-desaturase-mediated conversion of stearic acid (18:0) to oleic acid (18:1) is a key step, which regulates levels of unsaturated fatty acids in cells. We previously showed that stearoyl-acyl-carrier-protein-desaturase mutants ssi2/fab2 carrying a loss-of-function mutation in the plastidial...

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

authors： Kachroo A,Venugopal SC,Lapchyk L,Falcone D,Hildebrand D,Kachroo P

更新日期：2004-04-06 00:00:00

abstract：:Insects impact human health through vector-borne diseases and cause major economic losses by damaging crops and stored agricultural products. Insect-specific growth regulators represent attractive control agents because of their safety to the environment and humans. We identified plant compounds that serve as juvenile...

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

authors： Lee SH,Oh HW,Fang Y,An SB,Park DS,Song HH,Oh SR,Kim SY,Kim S,Kim N,Raikhel AS,Je YH,Shin SW

更新日期：2015-02-10 00:00:00

abstract：:Prostate cancer development is associated with hyperactive androgen signaling. However, the molecular link between androgen receptor (AR) function and humoral factors remains elusive. A prostate cancer mouse model was generated by selectively mutating the AR threonine 877 into alanine in prostatic epithelial cells thr...

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

authors： Takahashi S,Watanabe T,Okada M,Inoue K,Ueda T,Takada I,Watabe T,Yamamoto Y,Fukuda T,Nakamura T,Akimoto C,Fujimura T,Hoshino M,Imai Y,Metzger D,Miyazono K,Minami Y,Chambon P,Kitamura T,Matsumoto T,Kato S

更新日期：2011-03-22 00:00:00

abstract：:Field cancerization predisposes the upper aerodigestive tract mucosa to the formation of multiple primary tumors, when exposed to environmental carcinogens. Up-regulation of epidermal growth factor receptor occurs early in squamous cell carcinogenesis and is critical for the loss of growth control in a variety of huma...

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

authors： Grandis JR,Drenning SD,Zeng Q,Watkins SC,Melhem MF,Endo S,Johnson DE,Huang L,He Y,Kim JD

更新日期：2000-04-11 00:00:00

abstract：:The eIF2alpha kinases are a family of evolutionarily conserved serine/threonine kinases that regulate stress-induced translational arrest. Here, we demonstrate that the yeast eIF2alpha kinase, GCN2, the target phosphorylation site of Gcn2p, Ser-51 of eIF2alpha, and the eIF2alpha-regulated transcriptional transactivato...

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

authors： Tallóczy Z,Jiang W,Virgin HW 4th,Leib DA,Scheuner D,Kaufman RJ,Eskelinen EL,Levine B

更新日期：2002-01-08 00:00:00

abstract：:Infection of Swiss mouse 3T3FL cells with a clonal isolate of Moloney leukemia virus (MLV-IC) resulted in virus progeny composed of at least three different murine helper oncornaviruses. Each entity was purified in appropriate cells by several sequential terminal dilution isolations and was grouwn to high titers. Besi...

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

authors： Fischinger PJ,Nomura S,Bolognesi DP

更新日期：1975-12-01 00:00:00

abstract：:Plant RHO GTPases (RAC/ROPs) mediate multiple extracellular signals ranging from hormone to stress and regulate diverse cellular processes important for polarized cell growth, differentiation, development, reproduction, and responses to the environment. They shuttle between the GDP-bound inactive state and the GTP-bou...

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

authors： Duan Q,Kita D,Li C,Cheung AY,Wu HM

更新日期：2010-10-12 00:00:00

abstract：:p-Coumaric acid is the precursor of phenylpropanoids, which are plant secondary metabolites that are beneficial to human health. Tyrosine ammonia lyase catalyzes the production of p-coumaric acid from tyrosine. Because of their photosynthetic ability and biosynthetic versatility, cyanobacteria are promising candidates...

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

authors： Xue Y,Zhang Y,Cheng D,Daddy S,He Q

更新日期：2014-07-01 00:00:00

abstract：:Tauopathies are a class of neurodegenerative diseases associated with pathological tau. Despite many advances in our understanding of these diseases, the direct mechanism through which tau contributes to neurodegeneration remains poorly understood. Previously, our laboratory implicated the histone demethylase LSD1 in ...

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

authors： Engstrom AK,Walker AC,Moudgal RA,Myrick DA,Kyle SM,Bai Y,Rowley MJ,Katz DJ

更新日期：2020-11-17 00:00:00

abstract：:Thyroid hormone is a critical mediator of central nervous system (CNS) development, acting through nuclear receptors to modulate the expression of specific genes. Transcription of the rat hairless (hr) gene is highly up-regulated by thyroid hormone in the developing CNS; we show here that hr is directly induced by thy...

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

authors： Thompson CC,Bottcher MC

更新日期：1997-08-05 00:00:00

abstract：:The COVID-19 pandemic is a shocking reminder of how our world would look in the absence of vaccination. Fortunately, new technologies, the pace of understanding new and existing pathogens, and the increased knowledge of the immune system allow us today to develop vaccines at an unprecedented speed. Some of the vaccine...

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

authors： Rappuoli R,De Gregorio E,Del Giudice G,Phogat S,Pecetta S,Pizza M,Hanon E

更新日期：2021-01-19 00:00:00