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ZINC FINGER PROTEIN 202; ZNF202 OKDB#: 1619
 Symbols: ZINC FINGER PROTEIN 202; ZNF202 Species: human
 Synonyms:  Locus: 11q23.3 in Homo sapiens


For retrieval of Nucleotide and Amino Acid sequences please go to: OMIM Entrez Gene
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General Comment Deletions at 11q23 have been found in approximately half of breast, lung, ovarian, and cervical carcinomas as well as in melanomas, suggesting that the region harbors at least 1 tumor susceptibility gene. There are 2 distinct regions of loss of heterozygosity (LOH) at 11q23. ZNF202 is a gene located within LOH region 2. Alternative splicing gives rise to alpha and beta ZNF202 protein isoforms, with predicted lengths of 424 and 648 amino acids, respectively. ZNF202-beta contains 8 zinc fingers in the C-terminal half. Northern blot analysis revealed that ZNF202 is expressed as a 4- to 4.5-kb mRNA almost exclusively in testis.

General function DNA binding, Transcription factor
Comment
Cellular localization Nuclear
Comment
Ovarian function
Comment
Expression regulated by
Comment
Ovarian localization Granulosa
Comment Xing WR, et al 2002 reported cross talk of two Krupple transcription factors regulates expression of the ovine FSH receptor gene The follicle-stimulating hormone receptor (FSHR) in gonadal cells is required for normal folliculogenesis and spermatogenesis. To understand its regulation, we identified a CACC-box from -46 to -67 of the ovine FSHR promoter. Antibody supershift with a 22-bp DNA probe and nuclear extract from a Sertoli cell line demonstrated that a testis-specific zinc finger protein, ZNF202, might be one of the binding proteins. Western blots using ZNF202 antibody and Southwestern blot analyses with the DNA probe detected the same 60 kDa protein in both Sertoli and ovarian granulosa cell lines. Gel shift assays also revealed that the DNA-protein complex from Sertoli cells overexpressing the human Ras-responsive element binding protein-1 (RREB-1) migrated the same way as the complex containing endogenous CACC-box binding protein. Transfection studies indicated that ZNF202 repressed ovine FSHR promoter activity whereas RREB-I was likely to function as an activator. These data suggest that selective expression and cross talk of functionally distinctive Krupple transcription factors could regulate tissue- and stage-specific expression of FSHR gene.
Follicle stages
Comment
Phenotypes
Mutations 0 mutations
Genomic Region show genomic region
Phenotypes and GWAS show phenotypes and GWAS
Links
OMIM (Online Mendelian Inheritance in Man: an excellent source of general gene description and genetic information.)
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created: Sept. 24, 2002, 12:15 p.m. by: hsueh   email:
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last update: Sept. 24, 2002, 12:15 p.m. by: system    email:



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