abstract：:Phosphorus (P) is one of the most important nutrients limiting agricultural production worldwide. In acid and alkaline soils, which make up over 70% of the world's arable land, P forms insoluble compounds that are not available for plant use. To reduce P deficiencies and ensure plant productivity, nearly 30 million to...

journal_title：Nature biotechnology

authors： López-Bucio J,de La Vega OM,Guevara-García A,Herrera-Estrella L

更新日期：2000-04-01 00:00:00

abstract：:The treatment of asthma and allergic rhinitis using unique, humanized anti-IgE monoclonal antibodies with very particular binding specificities is now supported by the results of multiple phase II and III human clinical studies. The therapeutic efficacy of this approach is attributable to several pharmacological mecha...

journal_title：Nature biotechnology

authors： Chang TW

更新日期：2000-02-01 00:00:00

abstract：:Isoflavones have drawn much attention because of their benefits to human health. These compounds, which are produced almost exclusively in legumes, have natural roles in plant defense and root nodulation. Isoflavone synthase catalyzes the first committed step of isoflavone biosynthesis, a branch of the phenylpropanoid...

journal_title：Nature biotechnology

authors： Jung W,Yu O,Lau SM,O'Keefe DP,Odell J,Fader G,McGonigle B

更新日期：2000-02-01 00:00:00

abstract：:We constructed an immunotoxin, composed of an antibody directed against the high-affinity IgG receptor CD64 and Ricin-A, with the aim of resolving chronic inflammation through elimination of activated macrophages. In vitro, this immunotoxin proved very efficient in inducing apoptosis in activated macrophages, leaving ...

journal_title：Nature biotechnology

authors： Thepen T,van Vuuren AJ,Kiekens RC,Damen CA,Vooijs WC,van De Winkel JG

更新日期：2000-01-01 00:00:00

abstract：:Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF) is a powerful method to quickly and accurately determine the masses of peptides. Most genetic analyses, however, begin with PCR amplification of a test sequence to generate DNA, which is more difficult than peptides to analyze by ...

journal_title：Nature biotechnology

authors： Garvin AM,Parker KC,Haff L

更新日期：2000-01-01 00:00:00

abstract：:We have developed a platform for cell analysis based on immunomagnetic selection and magnetic alignment of cells in combination with an epi-illumination tracking and detection system. Whole blood was labeled with ferromagnetic nanoparticles and fluorescent probes, and placed in a magnetic field in a chamber. Cells lab...

journal_title：Nature biotechnology

authors： Tibbe AG,de Grooth BG,Greve J,Liberti PA,Dolan GJ,Terstappen LW

更新日期：1999-12-01 00:00:00

abstract：:Elastin-like polypeptides (ELPs) undergo a reversible, inverse phase transition. Below their transition temperature (Tt), ELPs are soluble in water, but when the temperature is raised above Tt, phase transition occurs, leading to aggregation of the polypeptide. We demonstrate a method for purification of soluble fusio...

journal_title：Nature biotechnology

authors： Meyer DE,Chilkoti A

更新日期：1999-11-01 00:00:00

abstract：:A sequence-specific genomic delivery system for the correction of chromosomal mutations was designed by incorporating two different binding domains into a single-stranded oligonucleotide. A repair domain (RD) contained the native sequence of the target region. A third strand-forming domain (TFD) was designed to form a...

journal_title：Nature biotechnology

authors： Culver KW,Hsieh WT,Huyen Y,Chen V,Liu J,Khripine Y,Khorlin A

更新日期：1999-10-01 00:00:00

abstract：:We have developed a generic procedure to purify proteins expressed at their natural level under native conditions using a novel tandem affinity purification (TAP) tag. The TAP tag allows the rapid purification of complexes from a relatively small number of cells without prior knowledge of the complex composition, acti...

journal_title：Nature biotechnology

authors： Rigaut G,Shevchenko A,Rutz B,Wilm M,Mann M,Séraphin B

更新日期：1999-10-01 00:00:00

abstract：:We report a protocol for the rapid identification of DNA-binding proteins. Immobilized DNA probes harboring a specific sequence motif are incubated with cell or nuclear extract. Proteins are analyzed directly off the solid support by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. The det...

journal_title：Nature biotechnology

authors： Nordhoff E,Krogsdam AM,Jorgensen HF,Kallipolitis BH,Clark BF,Roepstorff P,Kristiansen K

更新日期：1999-09-01 00:00:00

abstract：:A major challenge for fluorescence imaging of living mammalian cells is maintaining viability following prolonged exposure to excitation illumination. We have monitored the dynamics of mitochondrial distribution in hamster embryos at frequent intervals over 24 h using two-photon microscopy (1,047 nm) while maintaining...

journal_title：Nature biotechnology

authors： Squirrell JM,Wokosin DL,White JG,Bavister BD

更新日期：1999-08-01 00:00:00

abstract：:Salicylic acid (SA), produced by plants as a signal in defense against pathogens, induces metabolic heating mediated by alternative respiration in flowers of thermogenic plants, and, when exogenously applied, increases leaf temperature in nonthermogenic plants. We have postulated that the latter phenomenon would be de...

journal_title：Nature biotechnology

authors： Chaerle L,Van Caeneghem W,Messens E,Lambers H,Van Montagu M,Van Der Straeten D

更新日期：1999-08-01 00:00:00

abstract：:We have developed a strategy for improving the stimulation of T cells during immune responses by constructing recombinant antibodies that enhance the delivery of antigen to antigen-presenting cells, such as B cells. These antibodies have variable regions specific for surface molecules on B cells, and a constant region...

journal_title：Nature biotechnology

authors： Lunde E,Munthe LA,Vabø A,Sandlie I,Bogen B

更新日期：1999-07-01 00:00:00

abstract：:We have identified a heptapeptide with high affinity to rheumatoid arthritis-associated class II major histocompatibility (MHC) molecules. Using a model of its interaction with the class II binding site, a variety of mimetic substitutions were introduced into the peptide. Several unnatural amino acids and dipeptide mi...

journal_title：Nature biotechnology

authors： Falcioni F,Ito K,Vidovic D,Belunis C,Campbell R,Berthel SJ,Bolin DR,Gillespie PB,Huby N,Olson GL,Sarabu R,Guenot J,Madison V,Hammer J,Sinigaglia F,Steinmetz M,Nagy ZA

更新日期：1999-06-01 00:00:00

abstract：:Targeting of secreted and cell-surface proteins to the cell membrane is mediated by a short hydrophobic stretch of amino acids, termed the signal sequence. We have developed a method that detects signal sequences in cDNA fragments based on their ability to redirect a constitutively active mutant of a cytokine receptor...

journal_title：Nature biotechnology

authors： Kojima T,Kitamura T

更新日期：1999-05-01 00:00:00

abstract：:Pollen-mediated movement of transgenes from transplastomic oilseed rape (Brassica napus) into wild relatives will be avoided if chloroplasts are maternally transmitted. We assess the probability of chloroplast exchange between conventional oilseed rape and wild Brassica rapa to model the future behavior of transplasto...

journal_title：Nature biotechnology

authors： Scott SE,Wilkinson MJ

更新日期：1999-04-01 00:00:00

abstract：:Relatively low levels of expression from naturally occurring promoters have limited the use of muscle as a gene therapy target. Myogenic restricted gene promoters display complex organization usually involving combinations of several myogenic regulatory elements. By random assembly of E-box, MEF-2, TEF-1, and SRE site...

journal_title：Nature biotechnology

authors： Li X,Eastman EM,Schwartz RJ,Draghia-Akli R

更新日期：1999-03-01 00:00:00

abstract：:Human organ replacement is limited by a donor shortage, problems with tissue compatibility, and rejection. Creation of an organ with autologous tissue would be advantageous. In this study, transplantable urinary bladder neo-organs were reproducibly created in vitro from urothelial and smooth muscle cells grown in cult...

journal_title：Nature biotechnology

authors： Oberpenning F,Meng J,Yoo JJ,Atala A

更新日期：1999-02-01 00:00:00

abstract：:We describe a new method of random mutagenesis that employs the addition of peptide tails with random sequences to the C-terminal of enzyme molecules. A mutant population of catalase I from Bacillus stearothermophilus prepared by this method has a diversity in thermostability and enzyme activity equal to that obtained...

journal_title：Nature biotechnology

authors： Matsuura T,Miyai K,Trakulnaleamsai S,Yomo T,Shima Y,Miki S,Yamamoto K,Urabe I

更新日期：1999-01-01 00:00:00

abstract：:The ability to produce monoclonal antibodies (Mabs) in plants offers the opportunity for the development of an inexpensive method of mucosal immunoprotection against sexually transmitted diseases. To investigate the suitability of plant-expressed Mabs for vaginal preventive applications, we compared a humanized anti-h...

journal_title：Nature biotechnology

authors： Zeitlin L,Olmsted SS,Moench TR,Co MS,Martinell BJ,Paradkar VM,Russell DR,Queen C,Cone RA,Whaley KJ

更新日期：1998-12-01 00:00:00

abstract：:Developments in methods for identifying antigens from infectious agents and cancers has provided exciting new opportunities in prevention and treatment through vaccination. In many of these situations, however, traditional immunization techniques do not stimulate protective immunity because they fail to fully mobilize...

journal_title：Nature biotechnology

authors： Raychaudhuri S,Rock KL

更新日期：1998-11-01 00:00:00

abstract：:Whole-genome mRNA quantitation can be used to identify the genes that are most responsive to environmental or genotypic change. By searching for mutually similar DNA elements among the upstream non-coding DNA sequences of these genes, we can identify candidate regulatory motifs and corresponding candidate sets of core...

journal_title：Nature biotechnology

authors： Roth FP,Hughes JD,Estep PW,Church GM

更新日期：1998-10-01 00:00:00

abstract：:Peptide nucleic acids (PNAs) form stable and tight complexes with complementary DNA and/or RNA and would be promising antisense reagents if their cellular delivery could be improved. We show that a 21-mer PNA, complementary to the human galanin receptor type 1 mRNA, coupled to the cellular transporter peptides, transp...

journal_title：Nature biotechnology

authors： Pooga M,Soomets U,Hällbrink M,Valkna A,Saar K,Rezaei K,Kahl U,Hao JX,Xu XJ,Wiesenfeld-Hallin Z,Hökfelt T,Bartfai T,Langel U

更新日期：1998-09-01 00:00:00

abstract：:Nitrile hydratase (NHase), which catalyzes the hydration of nitriles to amides, has been used in the industrial production of acrylamide and nicotinamide. Recent studies on NHases, which are roughly classified into iron and cobalt types according to the metal involved, have clarified the photoactivation mechanism, the...

journal_title：Nature biotechnology

authors： Kobayashi M,Shimizu S

更新日期：1998-08-01 00:00:00

abstract：:The site-specific recombinases FLP and Cre are useful for genomic engineering in many living systems. Manipulation of their enzymatic properties offers a means to improve their applicability in different host organisms. We chose to manipulate the thermolability of FLP recombinase. A lacZ-based recombination assay in E...

journal_title：Nature biotechnology

authors： Buchholz F,Angrand PO,Stewart AF

更新日期：1998-07-01 00:00:00

abstract：:Microbially catalyzed reactions, which occur in the natural sulfur cycle, have been integrated in a microbiological process to remove toxic metals from contaminated soils. Bioleaching using sulfuric acid produced by sulfur-oxidizing bacteria was followed by precipitation of the leachate metals as insoluble sulfides by...

journal_title：Nature biotechnology

authors： White C,Sharman AK,Gadd GM

更新日期：1998-06-01 00:00:00

abstract：:To construct a mammalian artificial chromosome (MAC), telomere repeats and selectable markers were introduced into a 100 kb yeast artificial chromosome (YAC) containing human centromeric DNA. This YAC, which has a regular repeat structure of alpha-satellite DNA and centromere protein B (CENP-B) boxes, efficiently form...

journal_title：Nature biotechnology

authors： Ikeno M,Grimes B,Okazaki T,Nakano M,Saitoh K,Hoshino H,McGill NI,Cooke H,Masumoto H

更新日期：1998-05-01 00:00:00

abstract：:The efficiency of both phage display in Escherichia coli and periplasmic expression of recombinant proteins may be limited by the same periplasmic folding steps. To search for E. coli factors that improve the efficiency of both procedures, a library of E. coli proteins was coexpressed in a phagemid vector that contain...

journal_title：Nature biotechnology

authors： Bothmann H,Plückthun A

更新日期：1998-04-01 00:00:00

abstract：:Isolating antigen-specific T lymphocytes is hampered by the low frequency of the cells and the low affinity between T-cell receptors (TCR) and antigen. We describe the isolation and purification of antigen-specific CD8+ T lymphocytes from mixed T-cell populations. Magnetic beads coated with major histocompatibility co...

journal_title：Nature biotechnology

authors： Luxembourg AT,Borrow P,Teyton L,Brunmark AB,Peterson PA,Jackson MR

更新日期：1998-03-01 00:00:00

abstract：:Neuronal precursor cells are widespread in the forebrain ventricular/subventricular zone, and may provide a cellular substrate for brain repair. Clonal lines derived from single progenitors can become progressively less representative of their parental precursors with time and passage in vitro. We have developed an al...

journal_title：Nature biotechnology

authors： Wang S,Wu H,Jiang J,Delohery TM,Isdell F,Goldman SA

更新日期：1998-02-01 00:00:00

abstract：:The use of DNA variants in the mapping of the human genome and in the positional cloning of monogenic disease genes is well established. Determining the genetic bases of the more common "multifactorial" diseases, however, presents a major challenge. The genetics of these diseases are complicated by the interplay betwe...

journal_title：Nature biotechnology

authors： Schafer AJ,Hawkins JR

更新日期：1998-01-01 00:00:00

abstract：:The exocrine pancreas, liver, and submandibular glands of the rat were used to express and secrete two exogenous, human protein hormones (growth hormone and insulin) into blood at physiological concentrations. Transfection, expression, and secretion were achieved by the in vivo retrograde injection of plasmid DNA into...

journal_title：Nature biotechnology

authors： Goldfine ID,German MS,Tseng HC,Wang J,Bolaffi JL,Chen JW,Olson DC,Rothman SS

更新日期：1997-12-01 00:00:00

abstract：:The oncofetal fibronectin (B-FN) isoform is present in vessels of neoplastic tissues during angiogenesis but not in mature vessels. B-FN could therefore provide a target for diagnostic imaging and therapy of cancer. Phage display libraries have been used to isolate human antibody fragments with pan-species recognition...

journal_title：Nature biotechnology

authors： Neri D,Carnemolla B,Nissim A,Leprini A,Querzè G,Balza E,Pini A,Tarli L,Halin C,Neri P,Zardi L,Winter G

更新日期：1997-11-01 00:00:00

abstract：:Organophosphorus hydrolase (OPH) was displayed and anchored onto the surface of Escherichia coli using an Lpp-OmpA fusion system. Production of the fusion proteins in membrane fractions was verified by immunoblotting with OmpA antisera. Inclusion of the organophosphorus hydrolase signal sequence was necessary for achi...

journal_title：Nature biotechnology

authors： Richins RD,Kaneva I,Mulchandani A,Chen W

更新日期：1997-10-01 00:00:00

abstract：:Escherichia coli-based artificial chromosomes have become important tools for physical mapping and sequencing in various genome projects. The lack of a general method to modify these large bacterial clones, however, has limited their utility in functional studies. We developed a simple method to modify bacterial artif...

journal_title：Nature biotechnology

authors： Yang XW,Model P,Heintz N

更新日期：1997-09-01 00:00:00

abstract：:A human skin allograft injury model in immunodeficient mice, engrafted with human peripheral blood mononuclear cells from a different donor, has been used to test whether reagents that block human T cell CD2 interactions with its principal ligand, LFA-3 (CD58), can inhibit immune reactions in vivo. In this model, huma...

journal_title：Nature biotechnology

authors： Sultan P,Schechner JS,McNiff JM,Hochman PS,Hughes CC,Lorber MI,Askenase PW,Pober JS

更新日期：1997-08-01 00:00:00

abstract：:Glycoprotein hormones are noncovalent heterodimers comprised of a common alpha subunit and a hormone-specific beta subunit. Secretion and biologic action of these hormones are dependent on the formation of the heterodimer. The human LH beta subunit is unique among the other beta subunits in that it assembles inefficie...

journal_title：Nature biotechnology

authors： Garcia-Campayo V,Sato A,Hirsch B,Sugahara T,Muyan M,Hsueh AJ,Boime I

更新日期：1997-07-01 00:00:00

abstract：:To select for bacterial strains with enhanced phenotypes, random fragments of a whole genome, or a defined region of the genome, are cloned in a nonreplicating vector. The resulting plasmids are integrated by recombination into the homologous DNA region of the original strain. Integration gives rise to a nontandem dir...

journal_title：Nature biotechnology

authors： Mavingui P,Flores M,Romero D,Martínez-Romero E,Palacios R

更新日期：1997-06-01 00:00:00

abstract：:We have evaluated inhibition of the plasmid-born chloramphenicol acetyl transferase gene (CAT) by the hammerhead ribozyme and antisense RNA in Escherichia coli where the translation and transcription rates have been modified. Whereas neither antisense nor the hammerhead had an inhibitory effect on CAT activity in wild...

journal_title：Nature biotechnology

authors： Chen H,Ferbeyre G,Cedergren R

更新日期：1997-05-01 00:00:00

abstract：:Little is known about the consequences of releasing genetically engineered plants (GEP) into the environment. Using opine-producing GEP, we show that transgenic plants alter their biological environment, more precisely the root-associated bacterial populations. The alterations were both transgene-specific and target p...

journal_title：Nature biotechnology

authors： Oger P,Petit A,Dessaux Y

更新日期：1997-04-01 00:00:00