Gene Dmel\Hsp70Aa
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| Symbol | Dmel\Hsp70Aa | Species | D. melanogaster | ||||||||||||||||||||
| Name | Heat-shock-protein-70Aa | Annotation symbol | CG31366 | ||||||||||||||||||||
| Feature type | protein_coding_gene | FlyBase ID | FBgn0013275 | ||||||||||||||||||||
| Created / Updated | 2003-12-01/2003-12-01 | ||||||||||||||||||||||
| Genomic Location | |||||||||||||||||||||||
| Chromosome (arm) | 3R | Recombination map | |||||||||||||||||||||
| Cytogenetic map | 87A2-87A2 | Sequence location | 3R:7,779,885..7,782,514 [-] | ||||||||||||||||||||
| Map ( GBrowse ) |
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Summary Information
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Automatically generated summary
See sections below for more information | The gene Heat-shock-protein-70Aa is referred to in FlyBase by the symbol Hsp70Aa (CG31366, FBgn0013275). It has the cytological map location 87A2. Its sequence location is 3R:7779885..7782514. Its molecular function is described as ATP binding. It is involved in the biological processes: heat shock-mediated polytene chromosome puffing; response to heat. 5 alleles are reported. No phenotypic data is available. It has one annotated transcript and one annotated polypeptide. | ||||||||||||||||||||||
Phenotypic Description from the Red Book (Lindsley & Zimm 1992)
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| Gene/Allele symbols may differ from current usage | Hsp70
The structural genes that code for the 70,000 dalton
heat-shock protein (HSP70), the most abundant of the heat-shock proteins. HSP70 returns to preshock levels more rapidly
than other heat-shock proteins following return to 25
(DiDomenico, Bugaisky, and Lindquist, 1982, Proc. Nat. Acad.
Sci. USA 79: 6181-85). The protein becomes concentrated in
nuclei during heat shock; disperses to cytoplasm during
recovery; returns to nucleus upon further heat shock
(Velazquez and Lindquist, 1984, Cell 36: 655-62). Appears
not to be expressed in the testis in response to heat-shock
stimulation (Bonner, Parks, Parker-Thornberg, Mortin, and Pelham, 1984, Cell 37: 979-91). Deletion of either the 87A7 or
the 87C1 sequences does not eliminate the HSP70 heat-shock
response; simultaneous deletion of both sequences does eliminate the HSP70 heat-shock response (Ish-Horowitz et al.,
1979).
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Detailed Mapping Data
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| FlyBase Computed Cytological Location | |||||||||||||||||||||||
Cytogenetic map Evidence for location 87A2-87A2
Limits computationally determined from genome sequence between P{EP}Lk6EP886 and P{PZ}svp07842
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| Experimentally Determined Cytological Location | |||||||||||||||||||||||
Cytogenetic map Notes References 87A7-87A7 (determined by in situ hybridisation)
87A-87A (determined by in situ hybridisation)
87A-87A (determined by in situ hybridisation)
87A7-87A7 (determined by in situ hybridisation)
87A7-87A7 (determined by in situ hybridisation)
87A-87A (determined by in situ hybridisation)
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| Experimentally Determined Recombination Data | |||||||||||||||||||||||
| Location | |||||||||||||||||||||||
| Left of (cM) | |||||||||||||||||||||||
| Right of (cM) | |||||||||||||||||||||||
| Notes | |||||||||||||||||||||||
| Molecular Map Data | |||||||||||||||||||||||
Gene Order (in direction of increasing cytology)
References In direction of increasing cytology: Hsp70Aa- Hsp70Ab+ Gene Order (overall orientation not stated) References Overall orientation not stated: Hsp70Aa- Hsp70Ab+ | |||||||||||||||||||||||
Gene Model & Products
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Please see the
GBrowse view of
Dmel\Hsp70Aa
for information on other features
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| Comments on Gene Model | |||||||||||||||||||||||
this is Hsp70Aa; CG18743 (on + strand) is Hsp70Ab. (see Leigh Brown and Ish-Horowicz, 1981, Nature 290:677-682; Bettencourt and Feder 2001, Mol. Biol. Evol. 18:1272-1282; Bettencourt and Feder, 2002, J. Mol. Evol. 54:569-586). | |||||||||||||||||||||||
Transcript Data
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| Annotated Transcripts | |||||||||||||||||||||||
Name FlyBase ID RefSeq ID Length (nt) Associated CDS (aa) FBtr0082512
2630
642 | |||||||||||||||||||||||
| Additional Transcript Data & Comments | |||||||||||||||||||||||
| Reported size (kB) | 2.55 (northern blot) | ||||||||||||||||||||||
| Comments | |||||||||||||||||||||||
| External Data | |||||||||||||||||||||||
| Crossreferences | |||||||||||||||||||||||
Polypeptide Data
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| Annotated Polypeptides | |||||||||||||||||||||||
Name FlyBase ID
Predicted MW (kD)
Length (aa)
Theoretical pI
RefSeq ID
GenBank protein
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| Additional Polypeptide Data & Comments | |||||||||||||||||||||||
| Reported size (kD) | 70 (kD) | ||||||||||||||||||||||
| Comments | |||||||||||||||||||||||
| External Data | |||||||||||||||||||||||
| Linkouts | PANTHER
- Protein classification by function, families, and pathways
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| Crossreferences | InterPro
domains - A database of protein families, domains, and functional sites
• Heat shock protein Hsp70 (IPR001023)
Heat shock protein 70 (IPR013126)
TRANSFAC
- Eukaryotic transcription factors, their genomic binding sites, and DNA-binding profiles
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Sequences Consistent with the Gene Model
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| DDBJ
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EMBL / GenBank | DNA sequence Protein sequence Name | ||||||||||||||||||||||
| UniProtKB/Swiss-Prot | |||||||||||||||||||||||
| UniProtKB/TrEMBL | |||||||||||||||||||||||
| Maps to | |||||||||||||||||||||||
| Does NOT map to | |||||||||||||||||||||||
| Identified with | |||||||||||||||||||||||
Mapped Features & Mutations
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Please see
GBrowse
or insertion reports for information on insertions of transgenic
constructs and features not listed here
Type Symbol & Location Additional Notes References | |||||||||||||||||||||||
External Data
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| Linkouts | DEDB
- Drosophila exon database: splicing graphs
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| Crossreferences | |||||||||||||||||||||||
Expression Data
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| FlyBase-Curated Data | |||||||||||||||||||||||
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Transcript and Protein data | Please see the FlyBase Gene Expression Report for details of gene expression from the literature. | ||||||||||||||||||||||
Summary of Transcript Expression
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Stage Tissue/Position
Reference
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| Marker for | |||||||||||||||||||||||
| Subcellular Localization | |||||||||||||||||||||||
| CV Term | |||||||||||||||||||||||
Summary of Polypeptide Expression
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Stage Tissue/Position
Reference
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| Marker for | |||||||||||||||||||||||
| Subcellular Localization | |||||||||||||||||||||||
| CV Term | |||||||||||||||||||||||
External Data & Images
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| Linkouts | FLIGHT
- Cell culture data for RNAi and other high-throughput technologies
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Alleles & Phenotypes
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Summary of Allele Phenotypes
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Lethality Allele Sterility Allele Phenotype manifest in Allele | |||||||||||||||||||||||
Classical Alleles
( 3 ) | |||||||||||||||||||||||
| For All Classical Alleles Show | |||||||||||||||||||||||
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Alleles Carried on Transgenic Constructs
( 2 ) | |||||||||||||||||||||||
| For All Alleles Carried on Transgenic Constructs Show | |||||||||||||||||||||||
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Aneuploid Aberrations
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| Useful deficiency | |||||||||||||||||||||||
| Useful duplication | |||||||||||||||||||||||
| Disrupted in | |||||||||||||||||||||||
| Not disrupted in | |||||||||||||||||||||||
Transgenic Constructs & Insertions
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| Transgenic Constructs | |||||||||||||||||||||||
Type of construct Name Expression data characterization construct | |||||||||||||||||||||||
| Insertions | |||||||||||||||||||||||
Type of insertions Name Expression data miscellaneous insertions insertion of mobile activating element
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Related Comments
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Please look at the allele reports for the complete phenotype data
One of five structural genes (in two clusters, Hsp70A and Hsp70B) that code for the 70,000 dalton heat-shock protein (HSP70), the most abundant of the heat-shock proteins. Hsp70A usually includes two HSP70 encoding genes (Hsp70Aa (proximal), Hsp70Ab (distal)) (Holmgren et al., 1979) with slightly different restriction maps (Artavanis-Tsakonas et al., 1978). HSP70 returns to preshock levels more rapidly than other heat-shock proteins following return to 25oC (DiDomenico, Bugaisky and Lindquist, 1982). The protein becomes concentrated in nuclei during heat shock; disperses to cytoplasm during recovery; returns to nucleus upon further heat shock (Velazquez and Lindquist, 1984). Appears not to be expressed in the testis in response to heat-shock stimulation (Bonner et al., 1984). Deletion of either Hsp70A or Hsp70B does not eliminate the HSP70 heat-shock response; simultaneous deletion of both does (Ish-Horowicz et al., 1979). The Hsp70A promoter is unsuitable for use in fusion gene constructs for long term expression studies where repeated heat shocks are required as the amount of RNA is substantially reduced. Probes from D.melanogaster used in chromosome in situ hybridisation to study response to heat shock in D.guanche, D.madeirensis and D.subobscura. Results suggest that the 18C, 94A, 89A and 27A loci of the three obscura group species are homologous to the D.melanogaster loci Hsp83, Hsp70A, Hsp68 and the small Hsp group Hsp22, Hsp23, Hsp26 and Hsp27 respectively. Psoralen cross-linking studies reveal that the Hsp70A and 18S rRNA DNA is wound with a significant level of superhelical tension irrespective of state of transcriptional activation. Conversely DNA flanking Hsp70A shows substantially less tension, indicating stable, torsionally stressed topological domains. Thus the relaxing activity of topoisomerases is not ubiquitous throughout the nucleus but is tightly regulated. Identified in 2D gels of CMW W2 wing imaginal disc cell proteins. Members of the hsc70 gene family (heat shock cognate genes) that reside within the same intracellular compartment in different organisms share greater amino acid identity than hsc70 proteins from the same organism but different organelles. This pattern of conservation indicates specialisation of hsc70 function. RNA polymerase distribution on uninduced Hsp70 genes has been compared with the distribution of RNA polymerase on DRB (5,6,-Dichloro-1-β-D-ribofuranosylbenzimidazole)-inhibited induced Hsp70 genes. Introduction of Trl protein during or after nucleosome assembly in vitro results in disruption of nucleosome structure at the Hsp70Aa promoter. Hsp70Aa promoter deletion analysis reveals that disruption of a preassembled nucleosome requires three or four GA/CT elements, nucleosome displacement requires at least two GA/CT elements. The disruption is characterised by hypersensitivity to DNase I digestion and a realignment of adjacent nucleosomes. Disruption is facilitated by the presence of hydrolysable ATP. The Hsp70Aa and Hsp70Ab loci are flanked by special chromatin structures, scs and scs'. Each structure is defined by a pair of nuclease hypersensitivity sites bordering a nuclease resistant core of 250-350bp in length. Both scs and scs' have properties that suggest they may correspond to the boundaries of the 87A7 chromomere. scs and scs' are capable of establishing a domain of independent gene activity: w gene flanked by scs and scs' inserted into the genome by P element mediated transformation is isolated against both positive and negative position effects at most insertion sites. scs and scs' also have enhancer blocking activities: when inserted between a Yp1 enhancer and a heat shock promoter-Ecol\lacZ fusion little or no Ecol\lacZ expression is detected even though the promoter is fully heat shock inducible. Synthesis of heat shock proteins is inhibited by both short-chain fatty acids and their corresponding alcohols, compounds which have no observable effect on histone acetylation. UV cross linking technique has been used to study the in vivo distribution of Trl protein on Hsp70 and Hsp26. Prior to heat shock Trl protein is associated with the promoter regions of the uninduced Hsp70 and Hsp26 genes. Upon heat shock induction Trl protein is recruited to their transcription units with its distribution coincident with that of RNA polymerase II. RNA levels do not increase with age, so the observed increase in protein levels is due to post-transcriptional regulation. Aging-specific expression may be a result of oxidative damage. Gene contains an RNA polymerase II complex which pauses after synthesis of a short transcript. In vivo ultraviolet crosslinking techniques demonstrate phosphorylation of the carboxy terminal domain (CTD) of the large subunit of RNA polymerase II could either regulate the transition of polymerase from a paused to an elongated complex or be a consequence of the transition from paused to elongated. Sodium salicylate induces activation of Hsf binding activity in salivary gland cells and Schneider SL2 tissue cells. Puffing of heat shock gene loci occurs in salivary glands but Hsp70 transcription is not induced suggesting puffing and transcription are separable events. d(GA.TC)n sequences can be found in the promoters of Hsp26 and the Hsp70 genes. In vitro assembly of mononucleosomes into short DNA fragments carrying d(GA.TC)n sequences of different lengths is very efficient. Nucleosome assembly is inhibited strongly when the d(GA.TC)n sequence forms a triple-stranded conformation. Triplex formation requires partial destabilisation of the nucleosome. Results indicate nucleosome assembly and triplex formation are competing processes. | |||||||||||||||||||||||
Gene Ontology: Function, Process & Cellular Component
( 3 ) | |||||||||||||||||||||||
Molecular Function
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CV term References | |||||||||||||||||||||||
inferred from electronic annotation with InterPro:IPR001023 | |||||||||||||||||||||||
Biological Process
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CV term References | |||||||||||||||||||||||
inferred from mutant phenotype | |||||||||||||||||||||||
inferred from mutant phenotype non-traceable author statement | |||||||||||||||||||||||
Cellular Component
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CV term References | |||||||||||||||||||||||
Sequence Ontology: Class of Gene
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Interactions & Pathways
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Summary of Genetic Interactions
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| Interacts with |
Please look at the allele data for full details of the genetic
interactions
Hsp70Aa
allele
Gene References | ||||||||||||||||||||||
External Data
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| Linkouts | BioGRID
- Interaction data, including yeast 2-hybrid and genetic interactions
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Orthologs
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| Genome-wide drosophilid orthologs | |||||||||||||||||||||||
| Curated drosophilid orthologs | |||||||||||||||||||||||
| Linkouts | |||||||||||||||||||||||
Functional Complementation between Species
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Inter-Species Misexpression Data
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| Produces phenotype in | |||||||||||||||||||||||
| Produces NO phenotype in | |||||||||||||||||||||||
Stocks & Reagents
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Stocks Listed in FlyBase
( 3 ) | |||||||||||||||||||||||
| Bloomington | |||||||||||||||||||||||
Genomic Clones
( 2 ) | |||||||||||||||||||||||
cDNA Clones
( 10 ) | |||||||||||||||||||||||
| Please Note
This section lists cDNAs and ESTs that fall within the genomic extent of the gene model, which may include cDNAs and ESTs of genes within introns, or of overlapping genes. Please see
GBrowse for alignment of the cDNAs and ESTs to the gene model.
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| cDNA Clones, Fully Sequenced | |||||||||||||||||||||||
| BDGP DGC clones | |||||||||||||||||||||||
| Other clones | |||||||||||||||||||||||
| cDNA Clones, End Sequenced (ESTs) | |||||||||||||||||||||||
| BDGP DGC clones | |||||||||||||||||||||||
| Other clones | |||||||||||||||||||||||
RNAi & Array Information
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| Affy Oligo | |||||||||||||||||||||||
| Linkouts | DRSC
- RNAi screening (Harvard): high-throughput cell culture data and design
GenomeRNAi
- RNAi phenotypes (Heidelberg): high-throughput cell culture data
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Antibody Information
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Other Information
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Discoverer
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