Erythroleukemia (K562) cells contain a functional beta-globin gene.
نویسندگان
چکیده
منابع مشابه
Functional properties of the beta-globin locus control region in K562 erythroleukemia cells.
In this report, we compare the function of the human beta-globin locus control region (LCR) in three K562 erythroleukemia cell assays, including (1) a transient transfection assay for "classical" enhancer activity, (2) a colony assay that detects "productive integration events," and (3) an assay that detects the ability of LCR fragments to confer hemin inducibility on linked, stably integrated ...
متن کاملSpecific globin mRNAs in human erythroleukemia (K562) cells.
Specific globin mRNA accumulation was quantitated in several lines of K562 cells in the absence and the presence of hemin. Using specific cloned DNA probes, the amounts of zeta, alpha, epsilon and gamma mRNAs were shown to be increased 2-3-fold in the presence of 20 microM hemin. No delta- or beta-globin mRNAs were detectable in any of the lines. In one line, Bos, there was a marked decrease in...
متن کاملFunction of normal and mutated gamma-globin gene promoters in electroporated K562 erythroleukemia cells.
We examined the importance of cis-acting regulatory elements of the human gamma-globin gene promoter in a cell line (K562) where this gene normally functions. A gamma-Globin promoter fragments were fused to the neomycin phosphotransferase (neoR) gene in a plasmid-based vector and transiently transfected by electroporation into K562 cells. Correctly initiated "A gamma-neo" transcripts were detec...
متن کاملHemin preferentially stimulates synthesis of alpha-globin in K562 human erythroleukemia cells.
K562 human erythroleukemia cells are an established cell line derived from an adult with chronic myelogenous leukemia. Hemin stimulates their synthesis of embryonic and fetal hemoglobins. We have found that their globin synthetic pattern depends on the concentration of added hemin. Clone RA6 was cultured with 0--100 microM hemin and the globin synthetic pattern determined by 3H-leucine incorpor...
متن کاملStable transfer and expression of exogenous human globin genes in human erythroleukemia (K562) cells.
To study the expression of globin genes in human cells, human epsilon-globin genes were transferred into a K562 cell line, Bos, which synthesizes very low amounts of epsilon-globin mRNA. A plasmid (pSV2neo-epsilon) containing a complete epsilon-globin gene and 2 kilobases (kb) of 5' flanking DNA as well as a neomycin-resistance gene and a simian virus 40 origin of replication was transfected in...
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ژورنال
عنوان ژورنال: Molecular and Cellular Biology
سال: 1984
ISSN: 0270-7306,1098-5549
DOI: 10.1128/mcb.4.11.2553