Abstract
We present the sequence and expression pattern of chick Id4 and compare its distribution to that of other vertebrate Id genes. At early stages, Id4 expression is discrete, with transcript transiently expressed in subsets of migrating neural crest cells, the dorsal myocardium, the segmental plate mesoderm, and the tail bud. Later, expression is also observed in the telencephalic vesicles and corneal epithelium. Of all the Id genes, Id4 exhibits the most restricted pattern in the developing nervous system, with little expression in the presumptive neural crest or placodes. Id4 appears in the neural tube much later than other Id genes. However, all four Id genes display overlapping patterns in the branchial arches and tail bud.
Publication types
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Research Support, Non-U.S. Gov't
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Amino Acid Sequence
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Animals
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Base Sequence
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Chick Embryo
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Cloning, Molecular
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DNA, Complementary / metabolism
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DNA-Binding Proteins / biosynthesis*
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DNA-Binding Proteins / genetics*
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Humans
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In Situ Hybridization
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Inhibitor of Differentiation Protein 1
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Inhibitor of Differentiation Protein 2
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Inhibitor of Differentiation Proteins
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Molecular Sequence Data
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Neoplasm Proteins*
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Nervous System / embryology
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Neural Crest / cytology
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Phylogeny
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RNA, Messenger / metabolism
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Repressor Proteins*
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Sequence Homology, Amino Acid
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Tail / embryology
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Telencephalon / cytology
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Time Factors
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Tissue Distribution
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Transcription Factors / biosynthesis*
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Transcription Factors / genetics*
Substances
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DNA, Complementary
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DNA-Binding Proteins
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ID1 protein, human
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ID2 protein, human
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ID4 protein, human
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Inhibitor of Differentiation Protein 1
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Inhibitor of Differentiation Protein 2
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Inhibitor of Differentiation Proteins
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Neoplasm Proteins
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RNA, Messenger
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Repressor Proteins
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Transcription Factors
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ID3 protein, human