Human gene expression in rodent cells after uptake of isolated metaphase chromosomes.

abstract：:The total amount of noncoding sequences on chromosomes of contemporary organisms varies significantly from species to species. We propose a hypothesis for the origin of these noncoding sequences that assumes that (i) an approximately equal to 0.55-kilobase (kb)-long reading frame composed the primordial gene and (ii) ...

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

authors： Naora H,Miyahara K,Curnow RN

更新日期：1987-09-01 00:00:00

abstract：:Antimicrobial peptides, in particular α-defensins expressed by Paneth cells, control microbiota composition and play a key role in intestinal barrier function and homeostasis. Dynamic conditions in the local microenvironment, such as pH and redox potential, significantly affect the antimicrobial spectrum. In contrast ...

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

authors： Ehmann D,Wendler J,Koeninger L,Larsen IS,Klag T,Berger J,Marette A,Schaller M,Stange EF,Malek NP,Jensen BAH,Wehkamp J

更新日期：2019-02-26 00:00:00

abstract：:Bone morphogenetic protein 9 (BMP9) promotes the acquisition of the cholinergic phenotype in basal forebrain cholinergic neurons (BFCN) during development and protects these neurons from cholinergic dedifferentiation following axotomy when administered in vivo. A decline in BFCN function occurs in patients with Alzhei...

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

authors： Burke RM,Norman TA,Haydar TF,Slack BE,Leeman SE,Blusztajn JK,Mellott TJ

更新日期：2013-11-26 00:00:00

abstract：:RNA interference, mediated by small interfering RNAs (siRNAs), is a conserved regulatory process that has evolved as an antiviral defense mechanism in plants and animals. It is not known whether host cells also use siRNAs as an antibacterial defense mechanism in eukaryotes. Here, we report the discovery of an endogeno...

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

authors： Katiyar-Agarwal S,Morgan R,Dahlbeck D,Borsani O,Villegas A Jr,Zhu JK,Staskawicz BJ,Jin H

更新日期：2006-11-21 00:00:00

abstract：:Inherited colorectal cancer syndromes in humans exhibit regional specificity for tumor formation. By using mice with germline mutations in the adenomatous polyposis coli gene (Apc) and/or DNA mismatch repair genes, we have analyzed the genetic control of tumor regionality in the mouse small intestine. In C57BL/6 mice ...

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

authors： Haigis KM,Hoff PD,White A,Shoemaker AR,Halberg RB,Dove WF

更新日期：2004-06-29 00:00:00

abstract：:The synthesis of the proteins laminin and collagen IV is stimulated approximately equal to 20-fold in F9 mouse teratocarcinoma stem cells after treatment of the cells with retinoic acid and N6, O2'-dibutyryl-cAMP (Bt2cAMP). A cDNA library from F9 cells treated with retinoic acid, Bt2cAMP, and theophylline (F9-R + DBC ...

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

authors： Wang SY,Gudas LJ

更新日期：1983-10-01 00:00:00

abstract：:The genome of the defective avian tumor virus MH2 was identified as a RNA of 5.7 kilobases by its presence in different MH2-helper virus complexes and its absence from pure helper virus, by its unique fingerprint pattern of RNase T1-resistant (T1) oligonucleotides that differed from those of two helper virus RNAs, and...

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

authors： Duesberg PH,Vogt PK

更新日期：1979-04-01 00:00:00

abstract：:β subunits of high voltage-gated Ca2+ (CaV) channels promote cell-surface expression of pore-forming α1 subunits and regulate channel gating through binding to the α-interaction domain (AID) in the first intracellular loop. We addressed the stability of CaV α1B-β interactions by rapamycin-translocatable CaV β subunits...

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

authors： Yeon JH,Park CG,Hille B,Suh BC

更新日期：2018-10-16 00:00:00

abstract：:Domesticated animals formed an important element of farming practices in prehistoric Britain, a fact revealed through the quantity and variety of animal bone typically found at archaeological sites. However, it is not known whether the ruminant animals were raised purely for their tissues (e.g., meat) or alternatively...

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

authors： Copley MS,Berstan R,Dudd SN,Docherty G,Mukherjee AJ,Straker V,Payne S,Evershed RP

更新日期：2003-02-18 00:00:00

abstract：:Using both heterologous rabbit antisera and mouse monoclonal antibody to RNA.DNA hybrids, we have mapped the in situ hybridization locus of the 18/28S ribosomal RNA fraction to a single large band on polytene autosome 3 in Drosophila heteroneura and Drosophila silvestris. This portion of the chromosome is not physical...

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

authors： Stuart WD,Bishop JG,Carson HL,Frank MB

更新日期：1981-06-01 00:00:00

abstract：:The human major histocompatibility complex encodes three classical class I antigens, HLA-A, -B, and -C. Of these HLA-A and -B act as strong transplantation antigens and as restriction molecules for recognition of foreign antigen by cytotoxic T lymphocytes. In contrast, little is known about HLA-C and it is not clear w...

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

authors： Dill O,Kievits F,Koch S,Ivanyi P,Hämmerling GJ

更新日期：1988-08-01 00:00:00

abstract：:Underacetylation of histone H4 is thought to be involved in the molecular mechanism of mammalian X chromosome inactivation, which is an important model system for large-scale genetic control in eukaryotes. However, it has not been established whether histone underacetylation plays a critical role in the multistep inac...

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

authors： Wakefield MJ,Keohane AM,Turner BM,Graves JA

更新日期：1997-09-02 00:00:00

abstract：:The sequence of oligonucleotides produced by the action of bleomycin and ferrous ion on double- and single-stranded DNA has been determined. In the presence of ferrous ion, bleomycin promotes cleavage at G-T and G-C sequences, while high concentrations of ferrous ion alone result in strand scission that is not base sp...

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

authors： Takeshita M,Grollman AP,Ohtsubo E,Ohtsubo H

更新日期：1978-12-01 00:00:00

abstract：:Profilin2 (PFN2) is a target of the embryonic stem cell (ESC)-enriched miR-290 family of microRNAs (miRNAs) and an actin/dynamin-binding protein implicated in endocytosis. Here we show that the miR-290-PFN2 pathway regulates many aspects of ESC biology. In the absence of miRNAs, PFN2 is up-regulated in ESCs, with a re...

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

authors： Sangokoya C,Blelloch R

更新日期：2020-08-25 00:00:00

abstract：:Plant steroid hormones, brassinosteroids (BRs), are of great importance for plant growth and development. BRs signal through a cell surface receptor kinase, BRI1, and a GSK3-like kinase, BIN2, to regulate the BES1/BZR1 family of transcription factors, which directly bind to target gene promoters to activate or repress...

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

authors： Yu X,Li L,Li L,Guo M,Chory J,Yin Y

更新日期：2008-05-27 00:00:00

abstract：:Introduction of a sequence encoding 147 amino acids from human immunodeficiency virus type I (HIV-1) strain MN glycoprotein gp120 into the RNA genome of the stably attenuated Mengo virus strain vM16 yielded an infectious recombinant virus, vMLN450, which expressed the heterologous HIV-1 sequence along with the normal ...

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

authors： Altmeyer R,Escriou N,Girard M,Palmenberg A,van der Werf S

更新日期：1994-10-11 00:00:00

abstract：:Congenital defects, trauma, and disease can compromise the integrity and functionality of the skeletal system to the extent requiring implantation of bone grafts. Engineering of viable bone substitutes that can be personalized to meet specific clinical needs represents a promising therapeutic alternative. The aim of o...

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

authors： de Peppo GM,Marcos-Campos I,Kahler DJ,Alsalman D,Shang L,Vunjak-Novakovic G,Marolt D

更新日期：2013-05-21 00:00:00

abstract：:Parkinson's disease (PD) is a neurodegenerative disorder of uncertain pathogenesis characterized by a loss of substantia nigra pars compacta (SNpc) dopaminergic (DA) neurons, and can be modeled by the neurotoxin 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). Both inflammatory processes and oxidative stress may c...

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

authors： Wu DC,Teismann P,Tieu K,Vila M,Jackson-Lewis V,Ischiropoulos H,Przedborski S

更新日期：2003-05-13 00:00:00

abstract：:DNA synthesized in vitro from a phage M13 template has been cleaved at either guanine, adenine, or cytosine residues by ribosubstitution techniques. Fingerprints of the fragments obtained suggest that DNA sequencing will be possible with this technique. ...

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

authors： Salser W,Fry K,Brunk C,Poon R

更新日期：1972-01-01 00:00:00

abstract：:Copper is an essential micronutrient that plays a central role for a broad range of biological processes. Although there is compelling evidence that the intracellular milieu does not contain any free copper ions, the rapid kinetics of copper uptake and release suggests the presence of a labile intracellular copper poo...

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

authors： Yang L,McRae R,Henary MM,Patel R,Lai B,Vogt S,Fahrni CJ

更新日期：2005-08-09 00:00:00

abstract：:Capsaicin is a unique alkaloid of the plant kingdom restricted to the genus Capsicum. Capsaicin is the pungency factor, a bioactive molecule of food and of medicinal importance. Capsaicin is useful as a counterirritant, antiarthritic, analgesic, antioxidant, and anticancer agent. Capsaicin biosynthesis involves conden...

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

authors： Prasad BC,Kumar V,Gururaj HB,Parimalan R,Giridhar P,Ravishankar GA

更新日期：2006-09-05 00:00:00

abstract：:The membrane attack complex of complement is a fusion product of five complement proteins: C5b, C6, C7, C8, and C9. The complex causes complement-dependent cell membrane damage. It is assembled following complement activation both on the target cell surface and in the fluid phase. The isolated soluble complex, which h...

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

authors： Kolb WP,Müller-Eberhard HJ

更新日期：1975-05-01 00:00:00

abstract：:Refinement of neural circuits in the mammalian cerebral cortex shapes brain function during development and in the adult. However, the signaling mechanisms underlying the synapse-specific shrinkage and loss of spiny synapses when neural circuits are remodeled remain poorly defined. Here, we show that low-frequency glu...

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

authors： Oh WC,Hill TC,Zito K

更新日期：2013-01-22 00:00:00

abstract：:Helicobacter hepaticus-infected Rag2(-/-) mice emulate many aspects of human inflammatory bowel disease, including the development of colitis and colon cancer. To elucidate mechanisms of inflammation-induced carcinogenesis, we undertook a comprehensive analysis of histopathology, molecular damage, and gene expression ...

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

authors： Mangerich A,Knutson CG,Parry NM,Muthupalani S,Ye W,Prestwich E,Cui L,McFaline JL,Mobley M,Ge Z,Taghizadeh K,Wishnok JS,Wogan GN,Fox JG,Tannenbaum SR,Dedon PC

更新日期：2012-07-03 00:00:00

abstract：:Repeat proteins have recently been of great interest as potential alternatives to immunoglobulin antibodies due to their unique structural and biophysical features. We here present the development of a binding scaffold based on variable lymphocyte receptors, which are nonimmunoglobulin antibodies composed of Leucine-r...

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

authors： Lee SC,Park K,Han J,Lee JJ,Kim HJ,Hong S,Heu W,Kim YJ,Ha JS,Lee SG,Cheong HK,Jeon YH,Kim D,Kim HS

更新日期：2012-02-28 00:00:00

abstract：:With global heavy metal contamination increasing, plants that can process heavy metals might provide efficient and ecologically sound approaches to sequestration and removal. Mercuric ion reductase, MerA, converts toxic Hg2+ to the less toxic, relatively inert metallic mercury (Hg0) The bacterial merA sequence is rich...

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

authors： Rugh CL,Wilde HD,Stack NM,Thompson DM,Summers AO,Meagher RB

更新日期：1996-04-16 00:00:00

abstract：:Archaeologists often argue whether Paleolithic works of art, cave paintings in particular, constitute reflections of the natural environment of humans at the time. They also debate the extent to which these paintings actually contain creative artistic expression, reflect the phenotypic variation of the surrounding env...

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

authors： Pruvost M,Bellone R,Benecke N,Sandoval-Castellanos E,Cieslak M,Kuznetsova T,Morales-Muñiz A,O'Connor T,Reissmann M,Hofreiter M,Ludwig A

更新日期：2011-11-15 00:00:00

abstract：:Cystic fibrosis (CF) is an autosomal recessive disorder, the most common lethal genetic disease in Caucasians. Respiratory disease is the major cause of morbidity and mortality. Indeed, 95% of CF patients die of respiratory failure. Pseudomonas aeruginosa, an opportunistic pathogen, chronically infects the lungs of ov...

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

authors： Li JD,Feng W,Gallup M,Kim JH,Gum J,Kim Y,Basbaum C

更新日期：1998-05-12 00:00:00

abstract：:Okadaic acid is a non-phorbol 12-myristate 13-acetate (PMA)-type tumor promoter on mouse skin and known to be a potent inhibitor of serine/threonine protein phosphatases. Contrary to expectation from its tumor-promoting activity, okadaic acid was shown to have a potential to revert the phenotypes of cells transformed ...

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

authors： Sakai R,Ikeda I,Kitani H,Fujiki H,Takaku F,Rapp U,Sugimura T,Nagao M

更新日期：1989-12-01 00:00:00

abstract：:Granulocyte-colony-stimulating factor (G-CSF) stimulates the proliferation and differentiation of cells of the neutrophil lineage by interaction with a specific receptor. Early signal transduction events following G-CSF receptor activation were studied. We detected tyrosine phosphorylation of both the G-CSF receptor a...

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

authors： Nicholson SE,Oates AC,Harpur AG,Ziemiecki A,Wilks AF,Layton JE

更新日期：1994-04-12 00:00:00