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We have used DNase I footprinting and fluorescence melting studies to study the interaction of the hairpin polyamide Im-Py-Py-Py-(R)(H2N)gamma-Im`-PY-PY-PY-beta-Dp with its preferred binding sites (5'-WGWWCW; W=A or T) and other sequences. DNase I footprinting confirmed that the ligand binds to the sequence AGAACA at nanomolar concentrations and that changing the terminal A to G causes a dramatic
Breast cancer is a truly heterogenous disease, reflected in the existence of a wide spectrum of phenotypic subsets of tumours with varying intrinsic aggressiveness as well as ability to respond to a given treatment. Recent advances in large-scale genomic and proteomic screening techniques have confirmed this heterogeneity also at a molecular level, but there is still a bottleneck to be overcome be
Popular Abstract in Swedish Komplementsystemet är en del av immunförsvaret. Virus har utarbetat sätt för att skydda sig från komplementsystemet. Det humana herpesviruset KSHV (Kaposi's sarcoma-associated herpesvirus) har i sitt genom en gen som kodar för ett protein som vi har döpt till KCP (KSHV complement control protein). KCP har en transmembran del och en extracellulär del med fyra proteindomäViruses have developed several strategies to evade the complement system, a part of the immune system. The fourth open reading frame of the human virus Kaposi's sarcoma-associated herpesvirus (KSHV) encodes a type 1 transmembrane protein. This contains four complement control protein domains (CCP domains), and is thus structurally similar to human complement inhibitors. We named it KSHV complement
The uptake of nutrients from deep soil layers has been shown to be important for the long-term nutrient sustainability of forest soils. When modelling nutrient uptake in forest ecosystems, the nutrient uptake capacity of trees is usually defined by the root distribution. However, this leads to the assumption that roots at different soil depths have the same capacity to take up nutrients. To invest
The effect of UV radiation (half-band width 10 nm) in the wavelength range 248-340 nm on chlorophyll fluorescence from a thin layer of spinach thylakoid suspension was investigated. The parameter most sensitive to UV radiation was the rise time of variable fluorescence. The increase in rise time was proportional to UV photon fluence and was used for the determination of an action spectrum. The act
Combining high-resolution core-level spectroscopy, scanning tunneling microscopy and density-functional theory calculations we reanalyze the Pd(100)-(root5 x root5)R27degrees-O surface oxide phase. We find that the prevalent structural model, a rumpled PdO(001) film suggested by previous low energy electron diffraction (LEED) work [Surf. Sci. 494 (2001) L799], is incompatible with all three employ
The beaming effect and interference patterns on the exit surface of multiple nano metallic slits with micrometer pitch were observed by scanning near-field optical microscopy. The near-field light intensity for multiple slits had a longer propagation tail and a smaller diverging angle as compared to that in a single slit. From finite-difference time-domain calculations, we verify that these fringe
Popular Abstract in Swedish Komplementsystemet utgör en del av den medfödda immuniteten och är viktigt i försvaret mot angripande mikroorganismer. Ärftlig C2-brist (C2D) är en av de vanligaste bristerna inom komplementsystemet och förekommer i en frekvens av 1: 20 000 hos personer med västerländsk härstamning. I de aktuella undersökningarna har mer än 40 personer med C2D identifierats och observerThe complement system is a part of the innate immunity and is essential in the defence against microorganisms. Hereditary C2 deficiency (C2D) is one of the most common complement deficiency states with an estimated prevalence of 1:20,000 in persons of Western descent. In the present investigation, the identification of more than 40 C2D persons at a single centre combined with long observation peri
In time-selected migration birds adapt their fuel deposition and flight behaviour to maximise sustained migration speed. What are the expectations for the final part of spring migration when the transition to breeding takes place and the criterion of a maximum total migration speed is no longer relevant? Two possible strategies representing different ends of the capital – income spectrum are evalu
Popular Abstract in Swedish Stroke hos unga vuxna råttor och möss utlöser neurogenes i den skadade regionen striatum samt i den intakta hippocampus, men eftersom stroke framförallt drabbar äldre individer, är det av största vikt att utröna åldrandets effekt på hjärnans mekanismer för återhämtning. Gamla och unga vuxna råttor inducerades med stroke genom transient ocklusion av mellersta hjärnartäreStroke in young adult rodents triggers neurogenesis in the damaged striatum and intact hippocampus. as stroke happens frequently in aged individuals it is of great importance to know whether aging affects brain recovery mechanisms. Aged and young adult rats were subjected to stroke by transient occlusion of the middle cerebral artery and proliferating cells were labeled by intraperitoneal administ
The principal function of Saccharomyces cerevisiae Cdc13p is to provide a loading platform to recruit complexes that provide end protection and telomere replication. We isolated the Saccharomyces castellii Cdc13p homolog (scasCdc13p) and characterized the in vitro DNA binding features of the purified recombinant scasCdc13p. The full-length scasCdc13p binds specifically to G-rich single-stranded te
Popular Abstract in Swedish Avhandlingen handlar om hur kvinnlig omskärelse diskuteras av svensksomalier, men också om hur kvinnlig omskärelse diskuteras offentligt i det svenska samhället. Det konstateras att det finns en stor klyfta mellan dessa diskurser. Utifrån en analys av den interna debatten om kvinnlig omskärelse bland somalier i Malmö, hävdas att denna praktik debatteras och omvärderas 'Created by God' presents the views of Swedish Somalis on female circumcision and contrasts it to the Swedish public discourse on the issue. Despite the lack of documented illegal cases of female circumcision in Sweden, it is constantly claimed in the public discourse that female circumcision (female genital mutilation) is a practice upheld by the Somali exile group in Sweden. Based on an analys
Popular Abstract in Swedish Allt fler ungdomar i vårt land, liksom i många andra länder, lever i vardagen med mer än en kultur. En femtedel av eleverna i den svenska skolan är antingen själva födda i ett annat land eller har minst en förälder med utländsk bakgrund. För många av dessa barn och ungdomar har därför inte samhällets dominerande kultur funnits med från början av deras liv. Bekantskapen The present study is based on interviews with 22 youth and young adults. The perspective is phenomenological, since my aim has been to analyse and describe the everyday world as it presents itself to these young people. A process begins in the encounter with the majority culture and the emphasis is on how they think about events and experiences along the road to a more complex life-world. The proc
