نتایج جستجو برای: x gene
تعداد نتایج: 1708133 فیلتر نتایج به سال:
Dosage compensation for X-linked genes in mammals is accomplished by inactivating one of the two X chromosomes in females. X-chromosome inactivation (XCI) occurs during development, coupled with cell differentiation. In somatic cells, XCI is random, whereas in extraembryonic tissues, XCI is imprinted in that the paternally inherited X chromosome is preferentially inactivated. Inactivation is in...
Mammalian X-linked gene expression is highly regulated as female cells contain two and male one X chromosome (X). To adjust the X gene dosage between genders, female mouse preimplantation embryos undergo an imprinted form of X chromosome inactivation (iXCI) that requires both Rlim (also known as Rnf12) and the long non-coding RNA Xist. Moreover, it is thought that gene expression from the singl...
the gram-negative bacterium xenorhabdus is mutualistically associated with entomopathogenic nematode, steinernema. three bacterial strains were isolated from the entomopathogenic nematodes, steinernema glaseri (steiner) and s. carpocapsae (weiser), of the white grubs, polyphylla olivieri (laporte de castelnau) in iran. this study was focused on the characterization of the bacterial strains by u...
background: in most mammals, sex is determined at the beginning of gestation by the constitution of the sex chromosomes, xy in males and xx in females. case: here we report an interesting case characterized by ambiguous genitalia and ovotestis in a newborn carrying an apparently female karyotype (46 xx). array comparative genomic hybridization (array-cgh) revealed an unbalanced rearrangement re...
toxoplasma gondii contain various immunogenic antigens. the most important toxoplasma antigens are somatic and excreted/secreted antigens. rhoptry proteins are known as excreted/secreted antigens. these antigens have been proposed as a vaccine candidate against toxoplasmosis. the main objective of the present work was cloning rhoptry protein1 (rop1) gene of toxoplasma gondii (rh) in a cloning v...
Abstract Background The mutations in the ATRX gene have been shown to cause two types of disorders: inherited lead alpha thalassemia X-linked mental retardation (ATR-X) syndrome and acquired somatic myelodysplastic (ATMDS). Here we report a case mutation without completely features ATR-X or ATMDS syndromes. Moreover review previous reports both ATMDS. Methods After sample collection DNA extract...
The X gene of hepatitis B virus (HBV) is one of the major factors in HBV-induced hepatocarcinogenesis and is essential for the establishment of productive HBV replication in vivo. Recent studies have shown that the X gene product targets mitochondria and induces calcium flux, thereby activating Ca(+)-dependent signal transduction pathways. However, regulatory mechanisms of X gene expression hav...
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