Abstract:
:The factor for inversion stimulation, FIS, is involved in several cellular processes, including site-specific recombination and transcriptional activation. In the reactions catalysed by the DNA invertases Gin, Hin and Cin, FIS stimulates recombination by binding to an enhancer sequence. Within the enhancer, two FIS dimers (each 2 x 98 amino acids) bind to two 15-base-pair consensus sequences and induce bending of the DNA. Current models propose that the enhancer-FIS complex organizes a specific synapse, either through direct interactions with Gin, or by modelling the substrate into a configuration suitable for recombination. Using X-ray analysis at 2.0 A resolution, we now show that FIS is composed of four alpha helices tightly intertwined to form a globular dimer with two protruding helix-turn-helix motifs. The 24 N-terminal amino acids are so poorly defined in the electron density map as to make interpretation doubtful, indicating that they might act as 'feelers' suitable for DNA or protein (invertase) recognition. We infer from model building that DNA has to bend for tight binding to FIS.
journal_name
Naturejournal_title
Natureauthors
Kostrewa D,Granzin J,Koch C,Choe HW,Raghunathan S,Wolf W,Labahn J,Kahmann R,Saenger Wdoi
10.1038/349178a0subject
Has Abstractpub_date
1991-01-10 00:00:00pages
178-80issue
6305eissn
0028-0836issn
1476-4687journal_volume
349pub_type
杂志文章相关文献
NATURE文献大全abstract::It has been known for some 50 years that birds use photoreceptors in or near the hypothalamus to mediate the photoperiodic responses that control seasonal breeding. So far, however, attempts to identify the photopigment by determining an action spectrum have failed. The problems stem from the selective filtering of li...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/313050a0
更新日期:1985-01-03 00:00:00
abstract:: ...
journal_title:Nature
pub_type: 评论,信件
doi:10.1038/d41586-019-00764-z
更新日期:2019-03-01 00:00:00
abstract::The upper temperature at which a living system can exist is limited by the hydrolytic breakdown rate of its chemical constituents. The peptide bonds of proteins, the phosphodiester and N-glycosyl bonds in RNA and DNA, and the pyrophosphate and N-glycosyl bonds in nucleotides such as ATP and NAD are among the more impo...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/310430a0
更新日期:1984-08-02 00:00:00
abstract::Tumour-initiating cells capable of self-renewal and differentiation, which are responsible for tumour growth, have been identified in human haematological malignancies and solid cancers. If such minority populations are associated with tumour progression in human patients, specific targeting of tumour-initiating cells...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature06489
更新日期:2008-01-17 00:00:00
abstract::Distrust in scientific expertise1-14 is dangerous. Opposition to vaccination with a future vaccine against SARS-CoV-2, the causal agent of COVID-19, for example, could amplify outbreaks2-4, as happened for measles in 20195,6. Homemade remedies7,8 and falsehoods are being shared widely on the Internet, as well as dismi...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/s41586-020-2281-1
更新日期:2020-06-01 00:00:00
abstract::Botulinum neurotoxin A (BoNT/A) belongs to the most dangerous class of bioweapons. Despite this, BoNT/A is used to treat a wide range of common medical conditions such as migraines and a variety of ocular motility and movement disorders. BoNT/A is probably best known for its use as an antiwrinkle agent in cosmetic app...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature12732
更新日期:2014-01-02 00:00:00
abstract::The innate immune system is critical for the early detection of invading pathogens and for initiating cellular host defence countermeasures, which include the production of type I interferon (IFN). However, little is known about how the innate immune system is galvanized to respond to DNA-based microbes. Here we show ...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature08476
更新日期:2009-10-08 00:00:00
abstract::Regulatory T (T(reg)) cells are a critical sub-population of CD4+ T cells that are essential for maintaining self tolerance and preventing autoimmunity, for limiting chronic inflammatory diseases, such as asthma and inflammatory bowel disease, and for regulating homeostatic lymphocyte expansion. However, they also sup...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature06306
更新日期:2007-11-22 00:00:00
abstract:: ...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/d41586-018-07511-w
更新日期:2018-11-01 00:00:00
abstract::OTULIN (OTU deubiquitinase with linear linkage specificity) removes linear polyubiquitin from proteins that have been modified by LUBAC (linear ubiquitin chain assembly complex) and is critical for preventing auto-inflammatory disease1,2 and embryonic lethality during mouse development3. Here we show that OTULIN promo...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/s41586-018-0256-2
更新日期:2018-07-01 00:00:00
abstract::Neuronal circuits across several systems display remarkable plasticity to sensory input during postnatal development. Experience-dependent refinements are often restricted to well-defined critical periods in early life, but how these are established remains mostly unknown. A representative example is the loss of respo...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/35004582
更新日期:2000-03-09 00:00:00
abstract::The primary function of the nerve cell is to process electrical signals. Over the past fifteen years there has been renewed interest in the detailed spatial analysis of signalling in individual neurons owing to experimental evidence that the regional electrical properties of neurons are complex. Thus the behaviour of ...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/381322a0
更新日期:1996-05-23 00:00:00
abstract::The highly conserved protein gamma-tubulin is required for microtubule nucleation in vivo. When viewed in the electron microscope, a highly purified gamma-tubulin complex from Xenopus consisting of at least seven different proteins is seen to have an open ring structure. This complex acts as an active microtubule-nucl...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/378578a0
更新日期:1995-12-07 00:00:00
abstract::Y chromosomes underlie sex determination in mammals, but their repeat-rich nature has hampered sequencing and associated evolutionary studies. Here we trace Y evolution across 15 representative mammals on the basis of high-throughput genome and transcriptome sequencing. We uncover three independent sex chromosome orig...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature13151
更新日期:2014-04-24 00:00:00
abstract::The majority of human emerging infectious diseases are zoonotic, with viruses that originate in wild mammals of particular concern (for example, HIV, Ebola and SARS). Understanding patterns of viral diversity in wildlife and determinants of successful cross-species transmission, or spillover, are therefore key goals f...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature22975
更新日期:2017-06-29 00:00:00
abstract::Mechanical stimuli can modify the energy landscape of chemical reactions and enable reaction pathways, offering a synthetic strategy that complements conventional chemistry. These mechanochemical mechanisms have been studied extensively in one-dimensional polymers under tensile stress using ring-opening and reorganiza...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature25765
更新日期:2018-02-21 00:00:00
abstract:: ...
journal_title:Nature
pub_type: 新闻
doi:10.1038/d41586-018-07342-9
更新日期:2018-11-01 00:00:00
abstract::Transforming growth factor-beta (TGF-beta) signals by contacting two distantly related transmembrane serine/threonine kinases called receptors I and II. The role of these molecules in signalling has now been determined. TGF-beta binds directly to receptor II, which is a constitutively active kinase. Bound TGF-beta is ...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/370341a0
更新日期:1994-08-04 00:00:00
abstract::Accurate chromosome segregation requires timely dissolution of chromosome cohesion after chromosomes are properly attached to the mitotic spindle. Separase is absolutely essential for cohesion dissolution in organisms from yeast to man. It cleaves the kleisin subunit of cohesin and opens the cohesin ring to allow chro...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature17402
更新日期:2016-04-07 00:00:00
abstract::Pheromone-based behaviours are crucial in animals from insects to mammals, and reproductive isolation is often based on pheromone differences. However, the genetic mechanisms by which pheromone signals change during the evolution of new species are largely unknown. In the sexual communication system of moths (Insecta:...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature09058
更新日期:2010-07-22 00:00:00
abstract::The peroxisome proliferator-activated receptor-gamma (PPAR-gamma) is a ligand-dependent transcription factor that is important in adipocyte differentiation and glucose homeostasis and which depends on interactions with co-activators, including steroid receptor co-activating factor-1 (SRC-1). Here we present the X-ray ...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/25931
更新日期:1998-09-10 00:00:00
abstract::Globular star clusters are compact and massive stellar systems old enough to have witnessed the entire history of our Galaxy, the Milky Way. Although recent results suggest that their formation may have been more complex than previously thought, they still are the best approximation to a stellar population formed over...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature08581
更新日期:2009-11-26 00:00:00
abstract::Meristems are distinctive regions of plants that have capacity for continuous growth. Their developmental activity generates the majority of plant organs. It is currently unknown how cell division and cell differentiation are orchestrated in meristems, although genetic studies have demonstrated the relevance of a prop...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/36856
更新日期:1997-11-20 00:00:00
abstract::The molecular and cellular basis of T-lymphocyte activation remains a central question in immunology. The growth of already proliferating T cells is known to depend on T-cell growth factor (TCGF), a physiological mitogen. Noncycling T lymphocytes, however, are not sensitive to TCGF. They require a short contact with m...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/283664a0
更新日期:1980-02-14 00:00:00
abstract::Mature cortical pyramidal neurons receive excitatory inputs onto small protrusions emanating from their dendrites called spines. Spines undergo activity-dependent remodelling, stabilization and pruning during development, and similar structural changes can be triggered by learning and changes in sensory experiences. H...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature09986
更新日期:2011-06-02 00:00:00
abstract::Most common human traits and diseases have a polygenic pattern of inheritance: DNA sequence variants at many genetic loci influence the phenotype. Genome-wide association (GWA) studies have identified more than 600 variants associated with human traits, but these typically explain small fractions of phenotypic variati...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature09410
更新日期:2010-10-14 00:00:00
abstract::Enhancers are cis-acting control elements which can stimulate at a distance the activity of a variety of eukaryotic promoters. First identified as a repeated 72 base pair (bp) sequence upstream of the simian virus 40 (SV40) early gene promoter, enhancers have since been shown to be associated with numerous other viral...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/313711a0
更新日期:1985-02-21 00:00:00
abstract::Multiple sclerosis is thought to be an autoimmune disease of the central nervous system mediated by T cells specific for a myelin antigen. Myelin basic protein has been studied as a potential autoantigen in the disease because of its role as an encephalitogen in experimental autoimmune encephalomyelitis and post-viral...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/346183a0
更新日期:1990-07-12 00:00:00
abstract::Defining the functional relationships between proteins is critical for understanding virtually all aspects of cell biology. Large-scale identification of protein complexes has provided one important step towards this goal; however, even knowledge of the stoichiometry, affinity and lifetime of every protein-protein int...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature05649
更新日期:2007-04-12 00:00:00
abstract::In vitro studies of muscle mitochondrial metabolism in patients with mitochondrial myopathy have identified a variety of functional defects of the mitochondrial respiratory chain, predominantly affecting complex I (NADH-CoQ reductase) or complex III (ubiquinol-cytochrome c reductase) in adult cases. These two enzymes ...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/331717a0
更新日期:1988-02-25 00:00:00