Brain serotonin dysfunction accounts for aggression in male mice lacking neuronal nitric oxide synthase.

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：:Listeriolysin O (LLO) is a cholesterol-dependent cytolysin that is an essential virulence factor of Listeria monocytogenes. LLO pore-forming activity is pH-dependent; it is active at acidic pH (<6), but not at neutral pH. In contrast to other pH-dependent toxins, we have determined that LLO pore-forming activity is co...

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

authors： Schuerch DW,Wilson-Kubalek EM,Tweten RK

更新日期：2005-08-30 00:00:00

abstract：:Coatomer, the coat protein of coat protein complex (COP)I-vesicles, is a soluble protein complex made up of seven subunits, alpha-, beta-, beta'-, gamma-, delta-, epsilon-, and zeta-COP. Higher eukaryotes have two paralogous versions of the gamma- and zeta- subunits, termed gamma1- and gamma2-COP and zeta1- and zeta2-...

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

authors： Moelleken J,Malsam J,Betts MJ,Movafeghi A,Reckmann I,Meissner I,Hellwig A,Russell RB,Söllner T,Brügger B,Wieland FT

更新日期：2007-03-13 00:00:00

abstract：:Glucose-dependent insulinotropic peptide (GIP) is a 42-amino acid gastrointestinal regulatory peptide that stimulates insulin secretion from pancreatic beta cells in the presence of glucose. Approximately 7.8 x 10(5) recombinant clones of a neonatal rat intestinal cDNA library were screened by using plaque hybridizati...

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

authors： Tseng CC,Jarboe LA,Landau SB,Williams EK,Wolfe MM

更新日期：1993-03-01 00:00:00

abstract：:Misfolded proteins are eliminated from the endoplasmic reticulum (ER) by retrotranslocation into the cytosol, a pathway hijacked by certain viruses to destroy MHC class I heavy chains. The translocation of polypeptides across the ER membrane requires their polyubiquitination and subsequent extraction from the membrane...

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

authors： Ye Y,Shibata Y,Kikkert M,van Voorden S,Wiertz E,Rapoport TA

更新日期：2005-10-04 00:00:00

abstract：:The sequence of the cloned Bacillus amyloliquefaciens subtilisin gene suggested that this secreted serine protease is produced as a larger precursor, designated preprosubtilisin [Wells, J. A., Ferrari, E., Henner, D. J., Estell, D. A. & Chen, E. Y. (1983) Nucleic Acids Res. 11, 7911-7925]. Biochemical evidence present...

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

authors： Power SD,Adams RM,Wells JA

更新日期：1986-05-01 00:00:00

abstract：:For taxonomic levels higher than species, the abundance distributions of the number of subtaxa per taxon tend to approximate power laws but often show strong deviations from such laws. Previously, these deviations were attributed to finite-time effects in a continuous-time branching process at the generic level. Inste...

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

authors： Chu J,Adami C

更新日期：1999-12-21 00:00:00

abstract：:The discovery of arbuscules in Aglaophyton major, an Early Devonian land plant, provides unequivocal evidence that mycorrhizae were established >400 million years ago. Nonseptate hyphac and arbuscules occur in a specialized meristematic region of the cortex that continually provided new cells for fungal infection. Arb...

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

authors： Remy W,Taylor TN,Hass H,Kerp H

更新日期：1994-12-06 00:00:00

abstract：:The human chemokine receptors CCR5 and CXCR4 have emerged as the predominant cofactors, along with CD4, for cellular entry of HIV-1 in vivo whereas the contribution of other chemokine receptors to HIV disease has not been yet determined. CCR5-specific (R5) viruses predominate during primary HIV-1 infection whereas vir...

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

authors： Penn ML,Grivel JC,Schramm B,Goldsmith MA,Margolis L

更新日期：1999-01-19 00:00:00

abstract：:Prolyl hydroxylase and other enzymes of collagen synthesis have been found in cloned cells, including epithelium, melanoma, liver, HeLa, pituitary, kidney, and neuroblastoma. The significance of collagen biosynthesis in nonfibroblastic cells lines is discussed. ...

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

authors： Langness U,Udenfriend S

更新日期：1974-01-01 00:00:00

abstract：:Executing gene circuits by cell-free transcription-translation into cell-sized compartments, such as liposomes, is one of the major bottom-up approaches to building minimal cells. The dynamic synthesis and proper self-assembly of macromolecular structures inside liposomes, the cytoskeleton in particular, stands as a c...

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

authors： Garenne D,Libchaber A,Noireaux V

更新日期：2020-01-28 00:00:00

abstract：:p53 is the most frequently mutated gene in human cancers and mutant p53 has a gain of function (GOF) that promotes tumor progression and therapeutic resistance. One of the major GOF activities of mutant p53 is to suppress 2 other p53 family proteins, p63 and p73. However, the molecular basis is not fully understood. H...

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

authors： Zhang J,Sun W,Kong X,Zhang Y,Yang HJ,Ren C,Jiang Y,Chen M,Chen X

更新日期：2019-11-26 00:00:00

abstract：:The mammary gland consists of an adipose tissue that, in a process called branching morphogenesis, is invaded by a ductal epithelial network comprising basal and luminal epithelial cells. Stem and progenitor cells drive mammary growth, and their proliferation is regulated by multiple extracellular cues. One of the key...

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

authors： Kessenbrock K,Smith P,Steenbeek SC,Pervolarakis N,Kumar R,Minami Y,Goga A,Hinck L,Werb Z

更新日期：2017-03-21 00:00:00

abstract：:Studies of biotic remains of polar ice caps have been limited to morphological identification of plant pollen and spores. By using sensitive molecular techniques, we now demonstrate a much greater range of detectable organisms; from 2000- and 4000-year-old ice-core samples, we obtained and characterized 120 clones tha...

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

authors： Willerslev E,Hansen AJ,Christensen B,Steffensen JP,Arctander P

更新日期：1999-07-06 00:00:00

abstract：:Pancreatic beta cells respond to changes in blood glucose by secreting insulin and increasing insulin synthesis. To identify genes used in these responses, we have carried out expression profiling of beta cells exposed to high (25 mM) or low (5.5 mM) glucose by using oligonucleotide microarrays. Functional clustering ...

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

authors： Webb GC,Akbar MS,Zhao C,Steiner DF

更新日期：2000-05-23 00:00:00

abstract：:Modifier screens have been powerful genetic tools to define signaling pathways in lower organisms. The identification of modifier loci in mice has begun to allow a similar dissection of mammalian signaling pathways. Transgenic mice (Btk(lo)) expressing 25% of endogenous levels of Bruton's tyrosine kinase (Btk) have B ...

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

authors： Satterthwaite AB,Willis F,Kanchanastit P,Fruman D,Cantley LC,Helgason CD,Humphries RK,Lowell CA,Simon M,Leitges M,Tarakhovsky A,Tedder TF,Lesche R,Wu H,Witte ON

更新日期：2000-06-06 00:00:00

abstract：:Previous studies have failed to detect an interaction between monomeric soluble CD4 (sCD4) and class II major histocompatibility complex (MHC) proteins, suggesting that oligomerization of CD4 on the cell surface may be required to form a stable class II MHC binding site. To test this possibility, we transfected the F4...

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

authors： Sakihama T,Smolyar A,Reinherz EL

更新日期：1995-07-03 00:00:00

abstract：:Noniridescent coloration by the spongy keratin in parrot feather barbs has fascinated scientists. Nonetheless, its ultimate origin remains as yet unanswered, and a quantitative structural and optical description is still lacking. Here we report on structural and optical characterizations and numerical simulations of t...

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

authors： Yin H,Dong B,Liu X,Zhan T,Shi L,Zi J,Yablonovitch E

更新日期：2012-07-03 00:00:00

abstract：:Plants, as sessile organisms, must coordinate various physiological processes to adapt to ever-changing surrounding environments. Stomata, the epidermal pores facilitating gas and water exchange, play important roles in optimizing photosynthetic efficiency and adaptability. Stomatal development is under the control of...

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

authors： Zhang JY,He SB,Li L,Yang HQ

更新日期：2014-07-22 00:00:00

abstract：:Rev-Erbβ is a nuclear receptor that couples circadian rhythm, metabolism, and inflammation. Heme binding to the protein modulates its function as a repressor, its stability, its ability to bind other proteins, and its activity in gas sensing. Rev-Erbβ binds Fe3+-heme more tightly than Fe2+-heme, suggesting its activit...

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

authors： Sarkar A,Carter EL,Harland JB,Speelman AL,Lehnert N,Ragsdale SW

更新日期：2021-01-19 00:00:00

abstract：:Mechanism of photo-induced electron transfer and the subsequent hole transfer in DNA has been studied extensively, but so far we are not aware of any reliable report of the observation of the long-distance hole-transfer process. In this article, we demonstrate the results of direct observation for the long-distance ho...

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

authors： Takada T,Kawai K,Fujitsuka M,Majima T

更新日期：2004-09-28 00:00:00

abstract：:Jasmonoyl-isoleucine (JA-Ile), the active form of the plant hormone jasmonate (JA), is sensed by the F-box protein CORONATINE INSENSITIVE 1 (COI1), a component of a functional Skp-Cullin-F-box E3 ubiquitin ligase complex. Sensing of JA-Ile by COI1 rapidly triggers genome-wide transcriptional changes that are largely r...

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

authors： An C,Li L,Zhai Q,You Y,Deng L,Wu F,Chen R,Jiang H,Wang H,Chen Q,Li C

更新日期：2017-10-17 00:00:00

abstract：:Among the variety of specialized intercellular junctions, those of the adherens type have the most obvious association with cytoskeletal elements. This may be with the actin microfilament system as in the zonula adherens or with intermediate filaments as in the macula adherens, or desmosome. In the former case, it is ...

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

authors： Wheeler GN,Parker AE,Thomas CL,Ataliotis P,Poynter D,Arnemann J,Rutman AJ,Pidsley SC,Watt FM,Rees DA

更新日期：1991-06-01 00:00:00

abstract：:The discovery of high-temperature superconductivity in iron pnictides raised the possibility of an unconventional superconducting mechanism in multiband materials. The observation of Fermi-surface (FS)-dependent nodeless superconducting gaps suggested that inter-FS interactions may play a crucial role in superconducti...

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

authors： Terashima K,Sekiba Y,Bowen JH,Nakayama K,Kawahara T,Sato T,Richard P,Xu YM,Li LJ,Cao GH,Xu ZA,Ding H,Takahashi T

更新日期：2009-05-05 00:00:00

abstract：:Optical imaging of the functional architecture of cortex, based on intrinsic signals, is a useful tool for the study of the development, organization, and function of the living mammalian brain. This relatively noninvasive technique is based on small activity-dependent changes of the optical properties of cortex. Thus...

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

authors： Grinvald A,Frostig RD,Siegel RM,Bartfeld E

更新日期：1991-12-15 00:00:00

abstract：:Yeast centromeric DNA (CEN DNA) binding factor 3 (CBF3) is a multisubunit protein complex that binds to the essential CDEIII element in CEN DNA. The four CBF3 proteins are required for accurate chromosome segregation and are considered to be core components of the yeast kinetochore. We have examined the structure of t...

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

authors： Pietrasanta LI,Thrower D,Hsieh W,Rao S,Stemmann O,Lechner J,Carbon J,Hansma H

更新日期：1999-03-30 00:00:00

abstract：:The configuration of the heme-carbonyl group upon binding of carbon monoxide to sperm whale myoglobin (Mb) in crystals is evaluated on the basis of infrared spectroscopic methods. Multiplets of the totally symmetric C-O stretching mode are observed for the heme-bound ligand near 1933, 1944, and 1967 cm-1, correspondin...

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

authors： Makinen MW,Houtchens RA,Caughey WS

更新日期：1979-12-01 00:00:00

abstract：:Memory formation requires the placement of experienced events in the same order in which they appeared. A large body of evidence from human studies indicates that structures in the medial temporal lobe are critically involved in forming and maintaining such memories, and complementing evidence from lesion and electrop...

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

authors： Paz R,Gelbard-Sagiv H,Mukamel R,Harel M,Malach R,Fried I

更新日期：2010-03-30 00:00:00

abstract：:Human sporadic Creutzfeldt-Jakob disease (sCJD), endemic sheep scrapie, and epidemic bovine spongiform encephalopathy (BSE) are caused by a related group of infectious agents. The new U.K. BSE agent spread to many species, including humans, and clarifying the origin, specificity, virulence, and diversity of these agen...

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

authors： Manuelidis L,Chakrabarty T,Miyazawa K,Nduom NA,Emmerling K

更新日期：2009-08-11 00:00:00

abstract：:Given their relatively small area, mangroves and their organic sediments are of disproportionate importance to global carbon sequestration and carbon storage. Peat deposition and preservation allows some mangroves to accrete vertically and keep pace with sea-level rise by growing on their own root remains. In this stu...

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

authors： Ezcurra P,Ezcurra E,Garcillán PP,Costa MT,Aburto-Oropeza O

更新日期：2016-04-19 00:00:00