Journal
BIOCHIMICA ET BIOPHYSICA ACTA-PROTEIN STRUCTURE AND MOLECULAR ENZYMOLOGY
Volume 1482, Issue 1-2, Pages 119-126Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0167-4838(00)00143-6
Keywords
retinoid binding lipocalin; retinoic acid; choroid plexus; embryogenesis; prostaglandin synthase; transthyretin
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Choroid plexus lipocalin 1 (Cpl1) has been isolated from the African clawed toad (Xenopus laevis) and the cane toad (Bufo marinus). Xcpl1 has been used as a marker for studying early neural development. Due to its retinoid binding properties and the fact that it causes dysmorphogenesis when overexpressed in the early embryo, the protein product is considered to be part of the retinoic acid signalling pathway. Later in development and during adulthood, the epithelial cell sheet of the choroid plexus which forms the blood-cerebrospinal fluid barrier expresses cpl1 as the predominant secretory protein. These data, the similarity of Cpl1 to prostaglandin D-2 synthase and its functional homology to transthyretin will be discussed. (C) 2000 Elsevier Science B.V. All rights reserved.
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