نتایج جستجو برای: globin

تعداد نتایج: 6744  

Journal: :Journal of Hematology & Oncology 2009
Xiaoxin S Xu Xin Hong Gan Wang

Human beta-globin disorders are relatively common genetic diseases cause by mutations in the beta-globin gene. Increasing the expression of the gamma-globin gene has great benefits in reducing complications associated with these diseases. The Oct-1 transcription factor is involved in the transcriptional regulation of the gamma-globin gene. The human gamma-globin genes (both Agamma and Ggamma-gl...

2013
H. Steinberg Stephen A. Liebhaber

An American black woman was found to have the phenotype of moderately severe a-thalassemia normally associated with the loss of two to three a-globin genes despite an a-gl9bin gene map that demonstrated the loss of only a single a-globin gene (-a/ aa). Several individuals in her kindred with normal a-globin gene mapping studies (aa/aa) had mild a-thalassemia hematologic values consistent with t...

Journal: :Blood 2011
Christine M Kiefer Jongjoo Lee Chunhui Hou Ryan K Dale Y Terry Lee Emily R Meier Jeffrey L Miller Ann Dean

The Ldb1/GATA-1/TAL1/LMO2 complex mediates long-range interaction between the β-globin locus control region (LCR) and gene in adult mouse erythroid cells, but whether this complex mediates chromatin interactions at other developmental stages or in human cells is unknown. We investigated NLI (Ldb1 homolog) complex occupancy and chromatin conformation of the β-globin locus in human erythroid cell...

Journal: :Molecular biology and evolution 1986
S Harris J R Thackeray A J Jeffreys M L Weiss

Lemur beta-related globin genes have been isolated and sequenced. Orthology of prosimian and human epsilon-, gamma-, and beta-related globin genes was established by dot-matrix analysis. All of these lemur globin genes potentially encode functional beta-related globin polypeptides, though precisely when the gamma-globin gene is expressed remains unknown. The organization of the 18-kb brown lemu...

Journal: :Blood 1995
H Y Luo A B Deisseroth D H Chui

The human alpha-globin-like embryonic zeta-globin chains are present in abundance during the first 5 to 6 weeks of gestation. Subsequently, zeta-globin chains are present in fetal blood at a very low level, which is supplanted by the expression of alpha-globin chains. Adult individuals who are carriers of the (--SEA/) alpha-thalassemia deletion, in contrast to normal adults, have low levels of ...

2011
Christine M. Kiefer Jongjoo Lee Chunhui Hou Ryan K. Dale Y. Terry Lee Emily R. Meier Jeffrey L. Miller Ann Dean

The Ldb1/GATA-1/TAL1/LMO2 complex mediates long-range interaction between the -globin locus control region (LCR) and gene in adult mouse erythroid cells, but whether this complex mediates chromatin interactions at other developmental stages or in human cells is unknown. We investigated NLI (Ldb1 homolog) complex occupancy and chromatin conformation of the -globin locus in human erythroid cells....

2012
Petros Papadopoulos Laura Gutiérrez Reinier van der Linden John Kong-A-San Alex Maas Dubravka Drabek George P. Patrinos Sjaak Philipsen Frank Grosveld

The human β-globin locus contains the β-like globin genes (i.e. fetal γ-globin and adult β-globin), which heterotetramerize with α-globin subunits to form fetal or adult hemoglobin. Thalassemia is one of the commonest inherited disorders in the world, which results in quantitative defects of the globins, based on a number of genome variations found in the globin gene clusters. Hereditary persis...

Journal: :The Journal of Cell Biology 1982
S Linder S H Zuckerman N R Ringertz

The reactivation of chicken erythrocyte nuclei in chick-mammalian heterokaryons resulted in the activation of chick globin gene expression. However, the level of chick globin synthesis was dependent on the mammalian parental cell type. The level of globin synthesis was high in chick erythrocyte-rat L6 myoblast heterokaryons but was 10-fold lower in chick erythrocyte-mouse A9 cell heterokaryons....

2003
Melanie R. Loyd Yasuhiro Okamoto Mindy S. Randall

High-level -globin expression depends on cis-acting regulatory sequences located far upstream of the -globin cluster. Sequences that contain the -globin positive regulatory element (PRE) activate -globin expression in transgenic mice. The -globin PRE contains a pair of composite binding sites for the transcription factors activating protein 1 and nuclear factor erythroid 2 (AP1/NFE2). To determ...

Journal: :modares journal of medical sciences: pathobiology 2007
maryam bikhof torbati hossein khanahmad fatemeh jamshidi morteza karimipour majid sadeghizadeh

objective: β-thalassemia is caused by absence or reduction of β-globin chain synthesis. one of the effective therapeutic methods for this disease can be gene therapy by viral vectors. the capacity of lentiviral vectors is approximately 8 kb, we designed a 6 kb construct containing mini lcr and β-globin gene instead of lcr region. the aim of this study is to make a recombinant lentiviruses conta...

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