Identification and localization of a novel zinc finger gene in developing chick skin and feather buds.

We have cloned and sequenced a cDNA encoding a novel zinc finger protein (Fzf-1) containing two tandem repeats of zinc finger motifs of the C2H2 type. The cDNA is 3.0 Kb long and has an open reading frame which codes for a protein of 789 amino acids. The expression pattern of the zinc finger gene was studied in chick embryonic skin and feathers by in situ hybridization. The expression of the gene is found to be temporally and spatially regulated. In stage 38 chick embryos, the transcripts are localized to the epidermis but in 10-day-old embryos, the signal is localized to the forming dermis. In 12-day-old chick, the transcripts are localized to the mesenchymal region of the elongated feather buds. Reverse transcription followed by (RT-PCR) did not detect the transcripts in any other tissues.

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