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HPMR

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H2A histone family, member Z OKDB#: 2675
 Symbols: H2AFZ Species: human
 Synonyms: H2AZ, H2A.z, H2A/z, MGC117173  Locus: 4q24 in Homo sapiens


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General Comment

NCBI Summary: Histones are basic nuclear proteins that are responsible for the nucleosome structure of the chromosomal fiber in eukaryotes. Nucleosomes consist of approximately 146 bp of DNA wrapped around a histone octamer composed of pairs of each of the four core histones (H2A, H2B, H3, and H4). The chromatin fiber is further compacted through the interaction of a linker histone, H1, with the DNA between the nucleosomes to form higher order chromatin structures. This gene encodes a replication-independent member of the histone H2A family that is distinct from other members of the family. Studies in mice have shown that this particular histone is required for embryonic development and indicate that lack of functional histone H2A leads to embryonic lethality. [provided by RefSeq, Jul 2008]
General function Chromosome organization, Nucleic acid binding, DNA binding
Comment
Cellular localization Nuclear
Comment
Ovarian function Early embryo development
Comment
Expression regulated by
Comment
Ovarian localization Oocyte
Comment Effect of Embryonic Genotype on Reference Gene Selection for RT-qPCR Normalization. Llobat L et al. To obtain more reliable results with biological significance, it requires data normalization using an appropriate internal control gene. In rabbits, there are classic stable reference genes that have been identified for normalization in oocytes and pre-implantation stage embryos. However, effects of embryonic genotype on reference gene selection have not been elucidated. The aim of this study was to test (i) the stability of mRNA transcription level for histone (H2afz) and glyceraldehyde 3-phosphate dehydrogenase (GAPDH) genes in rabbit blastocysts from two lines selected by different criteria (litter size and post-weaning daily weight gain) and (ii) its influence on biological significance examined by means of a set of embryonic transcripts, such as POU5F1 (Oct-4), epidermal growth factor receptor (erbB3), transforming growth factor-beta2, vascular endothelial growth factor and gamma interferon (Ifn-gamma). The geNorm, NormFinder and BestKeeper programs showed similar results, pointing out that H2afz and GAPDH were the most stable reference genes in rabbits selected on litter size at weaning. Moreover, our study revealed that embryonic genotype affected target gene expression when a single reference gene was used to analyse mRNA expression in blastocysts. Results showed that GAPDH gene is better than H2afz for gene expression studies of both embryo genotypes. A normalization factor derived from H2afz and GAPDH is likely to be appropriate when RT-qPCR was performed in rabbit embryos with different genotypes.
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: Nov. 16, 2004, 6:04 a.m. by: kovarova   email:
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last update: Nov. 5, 2011, 9 a.m. by: hsueh    email:



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