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Six members of the mouse forkhead gene family are developmentally regulated.

ABSTRACT: The 110-aa forkhead domain defines a class of transcription factors that have been shown to be developmentally regulated in Drosophila melanogaster and Xenopus laevis. The forkhead domain is necessary and sufficient for target DNA binding as shown for the rat hepatic nuclear factor 3 (HNF3) gene family. We have cloned six forkhead gene family members from a mouse genomic library in addition to the mouse equivalents of the genes for HNF3 alpha, -beta, and -gamma. The six genes, termed fkh-1 to fkh-6, share a high degree of similarity with the Drosophila forkhead gene, having 57-67% amino acid identity within the forkhead domain. fkh-1 seems to be the mammalian homologue of the Drosophila FD1 gene, as the sequences are 86% identical. fkh-1 to fkh-6 show distinct spatial patterns of expression in adult tissues and are expressed during embryogenesis.

SUBMITTER: Kaestner KH

PROVIDER: S-EPMC47195 | biostudies-other | 1993 Aug

REPOSITORIES: biostudies-other

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Six members of the mouse forkhead gene family are developmentally regulated.

Kaestner K H KH Lee K H KH Schlöndorff J J Hiemisch H H Monaghan A P AP Schütz G G

Proceedings of the National Academy of Sciences of the United States of America 19930801 16

The 110-aa forkhead domain defines a class of transcription factors that have been shown to be developmentally regulated in Drosophila melanogaster and Xenopus laevis. The forkhead domain is necessary and sufficient for target DNA binding as shown for the rat hepatic nuclear factor 3 (HNF3) gene family. We have cloned six forkhead gene family members from a mouse genomic library in addition to the mouse equivalents of the genes for HNF3 alpha, -beta, and -gamma. The six genes, termed fkh-1 to fk ...[more]

PMID: 7689224

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Project description:The Sperm-coating protein/Tpx-1/Ag5/PR-1/Sc7 (SCP/TAPS) domain is found across phyla and is a major structural feature of insect allergens, mammalian sperm proteins and parasitic nematode secreted molecules. Proteins containing this domain are implicated in diverse biological activities and may be important for chronic host/parasite interactions.We report the first description of an SCP/TAPS gene family (Schistosoma mansoni venom allergen-like (SmVALs)) in the medically important Platyhelminthes (class Trematoda) and describe individual members' phylogenetic relationships, genomic organization and life cycle expression profiles. Twenty-eight SmVALs with complete SCP/TAPS domains were identified and comparison of their predicted protein features and gene structures indicated the presence of two distinct sub-families (group 1 & group 2). Phylogenetic analysis demonstrated that this group 1/group 2 split is zoologically widespread as it exists across the metazoan sub-kingdom. Chromosomal localisation and PCR analysis, coupled to inspection of the current S. mansoni genomic assembly, revealed that many of the SmVAL genes are spatially linked throughout the genome. Quantitative lifecycle expression profiling demonstrated distinct SmVAL expression patterns, including transcripts specifically associated with lifestages involved in definitive host invasion, transcripts restricted to lifestages involved in the invasion of the intermediate host and transcripts ubiquitously expressed. Analysis of SmVAL6 transcript diversity demonstrated statistically significant, developmentally regulated, alternative splicing.Our results highlight the existence of two distinct SCP/TAPS protein types within the Platyhelminthes and across taxa. The extensive lifecycle expression analysis indicates several SmVAL transcripts are upregulated in infective stages of the parasite, suggesting that these particular protein products may be linked to the establishment of chronic host/parasite interactions.

Dataset Information

Six members of the mouse forkhead gene family are developmentally regulated.

Publications

Six members of the mouse forkhead gene family are developmentally regulated.

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