ALY Background Information ALY (also designated THO complex subunit 4, THOC4, REF1, Refbp1 and BEF) is the mammalian homolog of the yeast mRNA export factor Yralp. A transcriptional coactivator, ALY belongs to the cytidylyltransferase family and is important in mRNA processing and export. During spliceosome assemby, it is recruited to messenger ribonucleoprotein (mRNP) complexes and becomes tightly associated with the spliced mRNP. Consistent with splicing-dependent recruitment, ALY co-localizes with splicing factors in the nucleus. It promotes transcriptional activation by promoting the dimerization of transcription factors containing basic leucine zipper domains. Although ubiquitously expressed, ALY specifically associates with the activation domains of LEF-1 and AML-1, both of which are protein components of the TCR a enhancer complex. Research indicates that ALY may mediate context-dependent transcriptional activation by facilitating the functional collaboration of multiple proteins in the TCR a enhancer complex.
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ALY (11G5)
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ALY (11G5): sc-32311. Western blot analysis of ALY expression in IMR-32 whole cell lysate (A) and Jurkat (B) and PC-3 (C) nuclear extracts.
ALY (11G5): sc-32311. Western blot analysis of ALY expression in Jurkat (A) and HeLa (B) nuclear extracts.
ALY (11G5): sc-32311. Immunofluorescence staining of methanol-fixed HeLa cells showing nuclear localization.
ALY (11G5): sc-32311. Immunofluorescence staining of methanol-fixed HeLa cells showing nuclear localization.
ALY (11G5): sc-32311. Immunoperoxidase staining of formalin fixed, paraffin-embedded human gall bladder tissue showing nuclear and cytoplasmic staining of glandular cells (low and high magnification). Kindly provided by The Swedish Human Protein Atlas (HPA) program.
