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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
1995-2-9
pubmed:databankReference
pubmed:abstractText
One of the earliest events in the development of the central nervous system is the establishment of positional identity along the anteroposterior (A-P) axis of the neuroepithelium. In recent years, regulatory genes with regionally restricted expression in the neuroepithelium have been identified which are believed to specify its developmental fate. We have previously described Brain Factor-1 (BF-1), a winged helix (WH) transcription factor expressed in the telencephalic neuroepithelium (Tao and Lai, 1992) Neuron 8:957-966. Here we report the cloning of the mouse cDNA for a novel WH protein, BF-2. We show that BF-2 is a sequence-specific DNA binding protein with a binding specificity distinct from BF-1. Its expression in the CNS during embryogenesis is restricted to the rostral diencephalic neuroepithelium. The caudal boundary of BF-2 expression is at the zona limitans intrathalamica. Rostrally, the BF-2 expression domain is adjacent to that of BF-1. The expression domains of these two factors define a boundary within the developing forebrain neuroepithelium. The BF-1/BF-2 boundary also extends laterally to divide the optic stalk and the retina into nasal (anterior) and temporal (posterior) domains. These observations suggest that in addition to playing a role in the subdivision of the forebrain, these two WH factors may also function to establish positional information in the retinal neuroepithelium.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0022-3034
pubmed:author
pubmed:issnType
Print
pubmed:volume
25
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1293-309
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed-meshheading:7815060-Amino Acid Sequence, pubmed-meshheading:7815060-Animals, pubmed-meshheading:7815060-Base Sequence, pubmed-meshheading:7815060-Cloning, Molecular, pubmed-meshheading:7815060-DNA, Complementary, pubmed-meshheading:7815060-DNA-Binding Proteins, pubmed-meshheading:7815060-Diencephalon, pubmed-meshheading:7815060-Embryo, Mammalian, pubmed-meshheading:7815060-Embryonic and Fetal Development, pubmed-meshheading:7815060-Forkhead Transcription Factors, pubmed-meshheading:7815060-Gene Expression, pubmed-meshheading:7815060-Mice, pubmed-meshheading:7815060-Molecular Probes, pubmed-meshheading:7815060-Molecular Sequence Data, pubmed-meshheading:7815060-Nerve Tissue Proteins, pubmed-meshheading:7815060-Prosencephalon, pubmed-meshheading:7815060-Rats, pubmed-meshheading:7815060-Retina, pubmed-meshheading:7815060-Tissue Distribution
pubmed:year
1994
pubmed:articleTitle
Expression of winged helix genes, BF-1 and BF-2, define adjacent domains within the developing forebrain and retina.
pubmed:affiliation
Cell Biology and Genetics Program, Sloan-Kettering Division, Cornell University Graduate School of Medical Sciences, Memorial Sloan-Kettering Cancer Center, New York, New York 10021.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't