A Database of Drosophila Genes & Genomes

FB2008_07, released August 8, 2008
 

Gene Dmel\His1

General Information
SymbolDmel\His1SpeciesD. melanogaster
NameHistone H1Annotation symbol
Feature typeprotein_coding_geneFlyBase IDFBgn0001195
Created / Updated2006-05-31/2006-05-31
Genomic Location
Chromosome (arm)Recombination map2-55
Cytogenetic map39D3-39E1Sequence location
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Automatically generated summary

See sections below for more information
The gene Histone H1 is referred to in FlyBase by the symbol His1 (FBgn0001195). It has the cytological map location 39D3-39E1. It has not been localized to the genome sequence. Its molecular function is described as DNA binding. It is involved in the biological processes: chromatin assembly or disassembly; negative regulation of histone modification; nucleosome assembly. One allele is reported. No phenotypic data is available. It has no annotated transcripts.
External Summaries
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FlyBase Computed Cytological Location
Cytogenetic map
Evidence for location
39D3-39E1  
Left limit from in situ hybridisation (FBrf0029738) Right limit from molecular mapping relative to His2A (FBrf0044950)  
Experimentally Determined Cytological Location
Cytogenetic map
Notes
References
39D-39E
(determined by in situ hybridisation)  
39D3-39E2
(determined by in situ hybridisation)  
Experimentally Determined Recombination Data
Location
2-55
 
Left of (cM)
Right of (cM)
Notes
Molecular Map Data
Gene Order (in direction of increasing cytology)
References
Gene Order (overall orientation not stated)
References
Overall orientation not stated: His2B+ His1- His3- His4+ His2A-
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Comments on Gene Model
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Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Associated CDS (aa)
Additional Transcript Data & Comments
Reported size (kB)
Comments
Nuclear run-on transcription assays demonstrate that modulation of transcription frequency by controlling the escape of RNA polymerase II from a step early in transcript elongation may be a common mechanism in gene regulation.
External Data
Crossreferences
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Annotated Polypeptides
Name
FlyBase ID
Predicted MW (kD)
Length (aa)
Theoretical pI
RefSeq ID
GenBank protein
Additional Polypeptide Data & Comments
Reported size (kD)
Comments
External Data
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InterPro domains - A database of protein families, domains, and functional sites
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DDBJ /
EMBL /
GenBank
DNA sequence
Protein sequence
Name
 
 
 
 
 
 
UniProtKB/Swiss-Prot
UniProtKB/TrEMBL
Maps to
Does NOT map to
Identified with
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Type
Symbol & Location
Additional Notes
References
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Crossreferences
EPD - Eukarytoic Promoter Database, an annotated collection of POL II promoters
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FlyBase-Curated Data
Transcript and
Protein data
Please see the FlyBase Gene Expression Report for details of gene expression from the literature.
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Stage
Tissue/Position
Reference
Marker for
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    CV Term
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    Tissue/Position
    Reference
    Marker for
      Subcellular Localization
      CV Term
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      Phenotype manifest in
      Allele
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      Allele of His1ClassMutagenStocksKnown lesion
      hide Alleles Carried on Transgenic Constructs ( 1 )
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      Allele of His1ClassMutagenStocksKnown lesion
      His1MNPV(Op)\IE-2.T:Avic\GFP,T:SV5\V5,T:Zzzz\His60 Yes
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      Useful deficiency
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      Please look at the allele reports for the complete phenotype data
      Encodes Histone-H1. See HIS-C record. H1 associates with DNA between nucleosomes. The ratio of H1 to nucleosome core histones is higher in the salivary glands of larvae than in the cells of young embryos (Holmgren, Johansson, Lambertsson, and Rasmusson, 1985). The expression of the histone genes changes in mid-embryogenesis (Ambrosio and Schedl, 1985; Ruddell and Jacobs-Lorena, 1985). The egg chambers contain a variable and low level of mRNA during nurse cell polytenization; however, at the end of stage 10, all the nurse cells accumulate histone mRNA which is turned over to the growing oocytes as the nurse cells degenerate. Heterozygosity for full or partial deficiency of the histone genes suppresses variegation (BSV, Sbv, wm4); duplications without effect on level of variegation (Moore, Sinclair and Grigliatti, 1983). Transcription not repressed by heat shock (Spradling, Pardue and Penman, 1977).
       
      4.8kb and 5.0kb repeats containing the histone genes His1, His2A, His2B, His3 and His4 are present in all of the more than 20 D.melanogaster strains studied. The strains differ in the relative amounts of the two repeat types, with the 5.0kb repeat always present in equal or greater amounts than the 4.8kb repeat. The strains also differ in a number of far less abundant fragments containing histone gene sequences.
      The expression of HIS-C genes, including His1, during oogenesis has been studied, and compared to periods of DNA synthesis and actin expression during this developmental stage.
      The genomic organisation of the histone genes in D.hydei closely resembles that of D.melanogaster.
      His1 is a general repressor of transcription.
      Scaffold attachment region sequences are implicated in the regional opening or closing of chromatin, possibly through their ability to serve as regulators for the His1-induced condensation of chromatin.
      The position of the homologous histone gene repeats within the nuclei of early embryo cells has been investigated. The two homologous histone gene clusters are distinct and separate through all stages of the cell cycle up to nuclear cycle 13. During interphase of cycle 14, the two clusters colocalise with high frequency, and move from near the midline of the nucleus towards the apical side.
      The codon bias of the histone genes from D.melanogaster and D.hydei illustrates that the generalisation that abundantly expressed genes have a high codon bias and low rates of silent substitution does not hold for the histone genes.
      In vivo UV cross-linking and nuclear run-on assays shows that RNA polymerase II density on the Hsp70Bb gene is rapidly repressed by heat shock.
      DNA replication of the 5kb histone gene repeating unit in tissue culture cells (Drosophila Kc cells) initiates at multiple sites located within the repeating unit. Several replication pause sites are located at 5' upstream regions of some histone genes.
      polo gene product immunoprecipitated from single Drosophila embryos can phosphorylate casein in vitro, and the kinase activity peaks cyclically at late anaphase/telophase. This contrasts with the cycling of CycB associated p34cdc2 histone H1 kinase, which is maximal upon entry into mitosis during the rapid syncitial mitoses.
      Efficient repression of transcription by polymerase II in this system does not require the presence of His1.
      Chromatin in a cell free chromatin assembly system derived from embryos contains an activity that hydrolyses ATP to render entire nucleosome arrays mobile even in the absence of ATP, and even in the presence of histone H1.
      dsRNA made from templates generated with primers directed against this gene was transfected onto wild-type Kc cells to determine whether the presence of His1 is essential for the association of ribosomal proteins on chromatin. Using this method, His1 is considered essential for the association of ribosomal proteins with chromatin.
      hide Gene Ontology: Function, Process & Cellular Component ( 6 )
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      non-traceable author statement
      inferred from electronic annotation with InterPro:IPR005818, InterPro:IPR005819
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      References
      non-traceable author statement
      inferred from direct assay
      inferred from electronic annotation with InterPro:IPR005818, InterPro:IPR005819
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      References
      inferred from electronic annotation with InterPro:IPR005818, InterPro:IPR005819
      non-traceable author statement
      inferred from electronic annotation with InterPro:IPR005818, InterPro:IPR005819
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      Interacts with
      Please look at the allele data for full details of the genetic interactions
      His1 allele
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      Produces phenotype in
      Produces NO phenotype in
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      Nascent chain nuclear run-on assays in KC161 cells reveal different responses to heat shock for different genes. Transcription of His1 is severely inhibited under mild heat shocks, of Act5C decreases proportionally with increasing temperature while that of the core histone genes or the heat shock cognates is repressed only under extreme heat shock. Increased transcription of the heat shock genes is observed within 1-2 mins of heat shock and maximal rates were reached within 2-5 minutes. Rates of transcription vary over a 20-fold range.
      The distribution of His1 protein on the 'Alu-repeat' DNA in the non-transcribed spacer of the ribosomal repeat (bb) and on 1.688-g/cm3 satDNA has been mapped.
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      DNaseI footprinting analysis reveals that histone His1, unlike His2A, His2B, His3 and His4, fails to bind to the kni, Kr and Ubx minimal enhancer elements.
      Comparison of CpG distribution in the coding region of 121 genes from six species supports the mCpG mutational hotspot explanation of CpG suppression in methylated species at position II-III and III-I.
      His1 is misexpressed in the PNS of da mutant embryos.
      hide External Crossreferences & Linkouts
      Sequence Crossreferences
      Other Crossreferences
      EPD - Eukarytoic Promoter Database, an annotated collection of POL II promoters
      InterPro domains - A database of protein families, domains, and functional sites
      Linkouts
      FLIGHT - Cell culture data for RNAi and other high-throughput technologies
      FlyMine - Integrated genomics database for Drosophila, Anopheles, and C.elegans
      Interactive Fly - A cyberspace guide to Drosophila development and metazoan evolution
      hide Synonyms & Secondary IDs ( 11 )
      Reported As
      Symbol Synonym
      His1
       
      Name Synonym
      Secondary FlyBase IDs
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        hide Recent research papers ( 6 )
        Camporeale et al., 2007, J. Nutr. 137(4): 885--889
        Susceptibility to heat stress and aberrant gene expression patterns in holocarboxylase synthetase-deficient Drosophila melanogaster are caused by decreased biotinylation of histones, not of carboxylases. [FBrf0201013]
        Matsushima and Kaguni, 2007, J. Biol. Chem. 282(13): 9436--9444
        Differential phenotypes of active site and human autosomal dominant progressive external ophthalmoplegia mutations in Drosophila mitochondrial DNA helicase expressed in Schneider cells. [FBrf0200362]
        Camporeale et al., 2006, J. Nutr. 136(11): 2735--2742
        Drosophila melanogaster holocarboxylase synthetase is a chromosomal protein required for normal histone biotinylation, gene transcription patterns, lifespan, and heat tolerance. [FBrf0192768]
        Horner et al., 2006, Curr. Biol. 16(14): 1441--1446
        The Drosophila calcipressin sarah is required for several aspects of egg activation. [FBrf0195355]
        Ni et al., 2006, Genes Dev. 20(14): 1959--1973
        Drosophila ribosomal proteins are associated with linker histone H1 and suppress gene transcription. [FBrf0194270]
        Papp and Muller, 2006, Genes Dev. 20(15): 2041--2054
        Histone trimethylation and the maintenance of transcriptional ON and OFF states by trxG and PcG proteins. [FBrf0194911]
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        All reviews listed in FlyBase were published before 2006