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The Xfeb gene is directly upregulated by Zic1 during early neural development

✍ Scribed by Shuzhao Li; Yongchol Shin; Ken W.Y. Cho; Christa S. Merzdorf

Book ID: 102817693
Publisher: John Wiley and Sons
Year: 2006
Tongue: English
Weight: 536 KB
Volume: 235
Category: Article
ISSN: 1058-8388
DOI: 10.1002/dvdy.20896

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✦ Synopsis

Abstract

The transcription factor Zic1 plays important roles in patterning the neural plate in early vertebrate development. However, few genes that are regulated by Zic1 are known. We have identified a new direct downstream target gene of Zic1 that we have named Xfeb. Xfeb is a member of the pathogenesis‐related (PR) protein superfamily and contains five tandem SCP domains. The sequence of Xfeb suggests that it may possess serine protease activity. Xfeb is expressed in the presumptive hindbrain region during neurula stages and in somite tissues later in development. Xfeb represses the hindbrain gene hoxB1 and the anterior neural gene otx2, suggesting that Xfeb is involved in regionalizing the neural plate, possibly by ensuring a posterior expression limit for otx2. Developmental Dynamics 235:2817–2827, 2006. © 2006 Wiley‐Liss, Inc.

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