Tag Content
UniProt Accession
Theoretical PI
Molecular Weight
18493 Da  
Genbank Nucleotide ID
Genbank Protein ID
Gene Name
Gene Synonyms/Alias
Protein Name
Heat shock protein beta-9 
Protein Synonyms/Alias
Mus musculus (Mouse) 
NCBI Taxonomy ID
Chromosome Location
View in Ensembl genome browser  
Function in Stage
Function in Cell Type
Probability (GAS) of Function in Spermatogenesis
The probability was calculated by GAS algorithm, ranging from 0 to 1. The closer it is to 1, the more possibly it functions in spermatogenesis.
Temporarily unavailable 
Abstract of related literatures
1. Using search profiles based on the conserved alpha-crystallin domain that is characteristic for small heat shock proteins (sHsps), we traced two new human sHsps. One of these, being the eighth known human sHsp and thus named HspB8, was recently described as a serine-threonine protein kinase (H11), but not identified as an sHsp (C.C. Smith, Y.X. Yu, M. Kulka, L. Aurelian, J. Biol. Chem. 275 (2000)). Northern blotting showed that HspB8/H11 is predominantly transcribed in skeletal muscle and heart, like most other sHsps. The other, named HspB9, is specifically expressed in testis, notably in the spermatogenic cells from late pachytene spermatocyte stage till elongate spermatid stage. While mammalian sHsps are generally highly conserved, mouse HspB9 shows 38% sequence difference with human HspB9, which may confirm its sex-related role. PMID: [11470154] 

2. This study describes comprehensive polling of transcription start and termination sites and analysis of previously unidentified full-length complementary DNAs derived from the mouse genome. We identify the 5' and 3' boundaries of 181,047 transcripts with extensive variation in transcripts arising from alternative promoter usage, splicing, and polyadenylation. There are 16,247 new mouse protein-coding transcripts, including 5154 encoding previously unidentified proteins. Genomic mapping of the transcriptome reveals transcriptional forests, with overlapping transcription on both strands, separated by deserts in which few transcripts are observed. The data provide a comprehensive platform for the comparative analysis of mammalian transcriptional regulation in differentiation and development. PMID: [16141072] 

3. The mouse (Mus musculus) is the premier animal model for understanding human disease and development. Here we show that a comprehensive understanding of mouse biology is only possible with the availability of a finished, high-quality genome assembly. The finished clone-based assembly of the mouse strain C57BL/6J reported here has over 175,000 fewer gaps and over 139 Mb more of novel sequence, compared with the earlier MGSCv3 draft genome assembly. In a comprehensive analysis of this revised genome sequence, we are now able to define 20,210 protein-coding genes, over a thousand more than predicted in the human genome (19,042 genes). In addition, we identified 439 long, non-protein-coding RNAs with evidence for transcribed orthologs in human. We analyzed the complex and repetitive landscape of 267 Mb of sequence that was missing or misassembled in the previously published assembly, and we provide insights into the reasons for its resistance to sequencing and assembly by whole-genome shotgun approaches. Duplicated regions within newly assembled sequence tend to be of more recent ancestry than duplicates in the published draft, correcting our initial understanding of recent evolution on the mouse lineage. These duplicates appear to be largely composed of sequence regions containing transposable elements and duplicated protein-coding genes; of these, some may be fixed in the mouse population, but at least 40% of segmentally duplicated sequences are copy number variable even among laboratory mouse strains. Mouse lineage-specific regions contain 3,767 genes drawn mainly from rapidly-changing gene families associated with reproductive functions. The finished mouse genome assembly, therefore, greatly improves our understanding of rodent-specific biology and allows the delineation of ancestral biological functions that are shared with human from derived functions that are not. PMID: [19468303] 

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Subcellular Location
Cytoplasm (By similarity). Nucleus (Bysimilarity). Note=Translocates to nuclear foci during heat shock(By similarity). 
Tissue Specificity
Testis specific. 
Gene Ontology
GO IDGO termEvidence
GO:0005737 C:cytoplasm ISS:UniProtKB.
GO:0005634 C:nucleus ISS:UniProtKB.
GO:0006950 P:response to stress IEA:UniProtKB-KW.
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IPR002068;    a-crystallin/Hsp20_dom.
IPR008978;    HSP20-like_chaperone.
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PF00011;    HSP20;    1.
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PS01031;    HSP20;    1.
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Created Date
Record Type
GAS predicted 
Sequence Annotation
CHAIN         1    168       Heat shock protein beta-9.
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Nucleotide Sequence
Length: 507 bp   Go to nucleotide: FASTA
Protein Sequence
Length: 168 bp   Go to amino acid: FASTA
The verified Protein-Protein interaction information
Gene Symbol Ref Databases
Other Protein-Protein interaction resources
String database  
View Microarray data