نتایج جستجو برای: Beta Globin Intron
تعداد نتایج: 205327 فیلتر نتایج به سال:
Background Luteinizing hormone (LH) is a heterodimeric glycoprotein composed of alpha and beta subunits.This hormone is secreted from the pituitary gland. LH, in women triggers Menstrual cycle and ovulation. In men, LH stimulates production of testosterone, which plays a specialized role in sperm production. Up to day, LH hormone have produced in different ways such as codon optimization and al...
Exogenous protein expression in mammalian cells is necessary to produce therapeutic proteins and modern medical applications like developing DNA vaccines gene therapy. This study examines the human-Globin (hBG) second intron's capacity for intron-mediated enhancement (IME) various cell lines. Our study's main aim investigate effect of incorporation arrangement intron human Beta-globin into pVAX...
Background: Beta thalassemia is one of the autosomal recessive diseases that related to synthesis disorder of beta globin chain. It is caused by any of the more than 200 mutations in the β-globin gene. DNA sequencing and genotyping of numerous mutations at beta globin gene is timely and expensive. Therefore, the best method for screening is linkage using polymorph markers at beta globin region ...
BACKGROUND Eukaryotic cells have developed surveillance mechanisms to prevent the expression of aberrant transcripts. An early surveillance checkpoint acts at the transcription site and prevents the release of mRNAs that carry processing defects. The exosome subunit Rrp6 is required for this checkpoint in Saccharomyces cerevisiae, but it is not known whether Rrp6 also plays a role in mRNA surve...
Regulated expression of the human beta-globin gene has been demonstrated in cultured murine erythroleukemia cells and in mice after retrovirus-mediated gene transfer. However, the low titer of recombinant viruses described to date results in relatively inefficient gene transfer, which limits their usefulness for animal studies and for potential gene therapy in humans for diseases involving defe...
We constructed and analyzed a synthetic poly(A) (SPA) site that was based on the highly efficient poly(A) signal of the rabbit beta-globin gene. By use of the SPA, we demonstrate that the minimum sequences required for efficient polyadenylation are the AATAAA sequence and a GT/T-rich sequence with the correct spacing of 22-23 nucleotides between them. When placed downstream of the poly(A) site ...
Most pre-mRNAs require an intron for efficient processing in higher eukaryotes. However, not all introns can provide this function. For example, transcripts synthesized from a variant of the human beta-globin gene lacking its second intervening sequence (IVS2), yet retaining its first intervening sequence (IVS1), exhibit multiple defects in mRNA biogenesis. To investigate why, we transfected in...
Introduction: Beta-thalassemia is an autosomal recessive disease that occurs as a result of disorder in the (β-globin chains synthesis), and gold standard method for diagnosis genetic mutation analysis. It important to know distribution mutations according regions races. The aim this study document beta-globin gene beta-thalassemia major intermedia patients who were followed treated Sanliurfa p...
Mutations at nucleotides 654, 705, or 745 in intron 2 of the human beta-globin gene activate aberrant 3' and 5' splice sites within the intron and prevent correct splicing of beta-globin pre-mRNA, resulting in inhibition of beta-globin synthesis and in consequence beta-thalassemia. Transfection of HeLa cells expressing the 3 thalassemic mutants with modified U7 snRNA (U7.623), containing a sequ...
Background and purpose: Due to the high annual birth rate of thalassemia major in our country, its prevention by prenatal diagnosis is of important priority. Gene mutation remains unknown in 10-20% of thalassemia trait people in Iran. In these cases, linkage analysis using polymorphic sites which are located near or within the gene is necessary to follow the mutant or the normal chromosome. Ssp...
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