نتایج جستجو برای: i mutation
تعداد نتایج: 1302420 فیلتر نتایج به سال:
BRCA1/2 mutations predispose to early onset breast and ovarian cancers. The phenotypic expression of mutant alleles, however, is thought to be modified by factors that are also involved in the pathogenesis of sporadic breast cancer. One such protein is IGF-I, one of the strongest mitogens to breast cancer cells in vitro. We have utilized immunohistochemistry to compare the intratumoral IGF-I an...
Summary Many organisms use genetic self-recognition systems to distinguish themselves from conspecifics. In the cnidarian, Hydractinia symbiolongicarpus, is partially controlled by allorecognition 2 (Alr2). Alr2 encodes a highly polymorphic transmembrane protein that discriminates self nonself binding in trans other Alr2 proteins with identical or sim...
BACKGROUND Recently developed methods for genome editing in bacteria take advantage of the introduction of double-strand breaks by I-SceI in a mutation cassette to select for cells in which homologous recombination has healed the break and introduced a desired mutation. This elegantly designed method did not work well in our hands for most genes. RESULTS We corrected a mutation in the gene en...
Osteogenesis imperfecta (OI) is a family of genetic disorders associated with bone loss and fragility. Mutations associated with OI have been found in genes encoding the type I collagen chains. People with OI type I often produce insufficient α1-chain type I collagen because of frameshift, nonsense, or splice site mutations in COL1A1 or COL1A2. This report is of a Chinese daughter and mother wh...
Background Myeloproliferative disorders are a group of diseases characterized by increased proliferation of myeloid lineage. In addition to JAK2V617F mutation, several mutations in the c-MPL gene were described in patients with Philadelphia-negative chronic myeloproliferative disorders that could be important in the pathogenesis of diseases. The aim of present study was to investigate the fre...
Background : Familial Mediterranean fever (FMF) is an autosomal recessive disease, which is characterized by recurrent short episodes of inflammation in serous membranes. It is most prevalent in Western Mediterranean population. MEFV is the only gene currently known to be associated with this disease. Previous studies revealed that 6% of Iranian Jewish residents in Israel were carriers of MEFV ...
چکیده ندارد.
Abstract For a one-locus haploid infinite population with discrete generations, the celebrated model of Kingman describes evolution fitness distributions under competition selection and mutation, constant mutation probability. This paper generalises Kingman’s by using independent identically distributed random probabilities, to reflect influence environment. The weak convergence globally stable...
Background and Objective: Janus kinase 2 (JAK2) and Myeloproliferative Leukemia (MPL) mutations are confirmatory indicators for Myeloproliferative Neoplasm (MPN). The current study was performed to determine the frequency of MPL mutation in MPN patients without JAK2 mutation, in order to assign MPL mutation frequency in North-East of Iran.Methods: Total o...
Background: Recurrent hydatidiform moles (RHMs) are an unusual pregnancy with at least two molar gestations that are associated with abnormal proliferation of trophoblastic tissue and a failure in the embryonic tissues development. Three maternal-effect genes, including NLRP7, KHDC3L, and PADI6 have been identified as the cause of RHMs. The present study aimed to understand the association of a...
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