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貨期:
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用途:
For Research Use Only. Not for use in diagnostic or therapeutic procedures.
Transcriptional regulator. May mediate transcription activation by binding to the E box-containing promoter. Involved in neurogenesis. Required for the development of neurons in the epiphysis, acting partially redundantly with neurog1 and downstream of flh. Involved in maintaining rhombomere boundaries in the hindbrain, probably via up-regulation of delta expression. Also involved in pituitary development; required cell-autonomously in adenohypophyseal cells for endocrine differentiation and for survival of a subset of cells.
基因功能參考文獻:
dlx1a/2a act downstream of ascl1a but upstream of dlx5a/dlx6a and gad1b to activate GABAergic specification PMID: 23747543
bHLH transcription factor Ascl1a is essential for the specification of the intestinal secretory cells and mediates Notch signaling in the zebrafish intestine PMID: 23352790
Loss of ascl1a prevents secretory cell differentiation within the zebrafish intestinal epithelium resulting in a loss of distal intestinal motility PMID: 23353550
Data show that injury-dependent induction of Ascl1a suppressed expression of the Wnt signaling inhibitor, Dkk, and induced expression of the Wnt ligand, Wnt4a. PMID: 21911394
The Ascl1a regulates Muller glia dedifferentiation and retinal regeneration through a Lin-28-dependent, let-7 microRNA signalling pathway. PMID: 20935637
Expressed in the postsembryonic zebrafish brain PMID: 12638130
ash1a and ngn1 function in parallel redundant pathways to regulate neurogenesis downstream of flh PMID: 12702659
Ascl1a might act downstream of diencephalic fibroblast growth factor 3 (Fgf3) signaling to mediate some of the effects of Fgf3 on the developing adenohypophysis PMID: 16481349
Cellular correlates of proneural gene(ash1a) expression in the regenerating zebrafish retina. PMID: 17822581
ascl1a is essential for retina regeneration: within 4 h after retinal injury, ascl1a is induced in Muller glia. PMID: 18234889
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亞細胞定位:
Nucleus.
組織特異性:
In the 24 hours embryo, expressed in the dorsal hindbrain in two bilaterally symmetrical lines of cells marking the boundary between the alar and basal plates, and ventrally in rhombomere 1 near the floor plate. Also expressed in embryonic adenohypophysis