Tag Content
SG ID
SG00020932 
UniProt Accession
Theoretical PI
5.89  
Molecular Weight
11007 Da  
Genbank Nucleotide ID
Genbank Protein ID
 
Gene Name
Stfa1 
Gene Synonyms/Alias
Stf-1, Stf1 
Protein Name
Stefin-1 
Protein Synonyms/Alias
 
Organism
Mus musculus (Mouse) 
NCBI Taxonomy ID
10090 
Chromosome Location
chr:16;36277213-36285457;1
View in Ensembl genome browser  
Function in Stage
Uncertain 
Function in Cell Type
Uncertain 
Probability (GAS) of Function in Spermatogenesis
0.114936048 
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.
Description
Temporarily unavailable 
Abstract of related literatures
1. Stefins or Type 1 cystatins belong to a large, evolutionarily conserved protein superfamily, the members of which inhibit the papain-like cysteine proteinases. We report here on the molecular cloning and chromosomal localization of three newly identified members of the murine stefin gene family. These genes, designated herein as mouse stefins 1, 2, and 3, were isolated on the basis of their relatively increased expression in moth-eaten viable compared to normal congenic mouse bone marrow cells. The open reading frames of the stefin cDNAs encode proteins of approximately 11.5 kDa that show between 50 and 92% identity to sequences of stefins isolated from various other species. Data from Southern analysis suggest that the murine stefin gene family encompasses at least 6 and possibly 10-20 members, all of which appear to be clustered in the genome. Analysis of interspecific backcross mice indicates that the genes encoding the three mouse stefins all map to mouse chromosome 16, a localization that is consistent with the recent assignment of the human stefin A gene to a region of conserved homology between human chromosome 3q and the proximal region of mouse chromosome 16. PMID: [8468045] 

2. 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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Function
This is an intracellular thiol proteinase inhibitor. 
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Subcellular Location
Cytoplasm (By similarity). 
Tissue Specificity
 
Gene Ontology
GO IDGO termEvidence
GO:0005737 C:cytoplasm IEA:UniProtKB-SubCell.
GO:0004869 F:cysteine-type endopeptidase inhibitor activity IEA:UniProtKB-KW.
GO:0010951 P:negative regulation of endopeptidase activity IEA:GOC.
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Interpro
IPR000010;    Prot_inh_cystat.
IPR018073;    Prot_inh_cystat_CS.
IPR001713;    Prot_inh_stefinA.
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Pfam
PF00031;    Cystatin;    1.
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SMART
SM00043;    CY;    1.
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PROSITE
PS00287;    CYSTATIN;    1.
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PRINTS
PR00295;    STEFINA.;   
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Created Date
18-Oct-2012 
Record Type
GAS predicted 
Sequence Annotation
CHAIN         1     97       Stefin-1.
                             /FTId=PRO_0000207148.
MOTIF        46     50       Secondary area of contact.
SITE          4      4       Reactive site (By similarity).
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Nucleotide Sequence
Length: 396 bp   Go to nucleotide: FASTA
Protein Sequence
Length: 97 bp   Go to amino acid: FASTA
The verified Protein-Protein interaction information
UniProt
Gene Symbol Ref Databases
Other Protein-Protein interaction resources
String database  
View Microarray data
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