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General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.
Gene namei
Official gene symbol, which is typically a short form of the gene name, according to HGNC.
Kinetochore localized astrin (SPAG5) binding protein
Protein classi
Assigned HPA protein class(es) for the encoded protein(s).
Disease related genes Human disease related genes
Predicted locationi
All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.
Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.
Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).
The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.
Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.
Chromosome
15
Cytoband
q15.1
Chromosome location (bp)
40382721 - 40394288
Number of transcriptsi
Number of protein-coding transcripts from the gene as defined by Ensembl.
Useful information about the protein provided by UniProt.
Essential component of the mitotic spindle required for faithful chromosome segregation and progression into anaphase 1. Promotes the metaphase-to-anaphase transition and is required for chromosome alignment, normal timing of sister chromatid segregation, and maintenance of spindle pole architecture 2,3. The astrin (SPAG5)-kinastrin (SKAP) complex promotes stable microtubule-kinetochore attachments 4. Required for kinetochore oscillations and dynamics of microtubule plus-ends during live cell mitosis, possibly by forming a link between spindle microtubule plus-ends and mitotic chromosomes to achieve faithful cell division 5. May be involved in UV-induced apoptosis via its interaction with PRPF19; however, these results need additional evidences 6....show less
Biological process (UniProt)i
Keywords assigned by UniProt to proteins because they are involved in a particular biological process.
Cell cycle, Cell division, Mitosis
Gene summary (Entrez)i
Useful information about the gene from Entrez
Enables microtubule plus-end binding activity and protein homodimerization activity. Involved in several processes, including cellular response to epidermal growth factor stimulus; mitotic sister chromatid segregation; and regulation of attachment of spindle microtubules to kinetochore. Located in several cellular components, including kinetochore; microtubule cytoskeleton; and ruffle. Implicated in actinic keratosis and skin squamous cell carcinoma. [provided by Alliance of Genome Resources, Apr 2022]...show less
PROTEIN INFORMATIONi
The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.
The Splice variant identifier links to the Ensembl website protein summary for the selected splice variant. The data in the Swissprot and TrEMBL columns links to corresponding pages in the UniProt database.
The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.
The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide and number of predicted transmembrane region(s) according to in-house majority decision methods based on sets of predictors are also reported.
Q9Y448 [Direct mapping] Small kinetochore-associated protein
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Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Disease related genes Human disease related genes Immune system diseases Primary immunodeficiency Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
Q9Y448 [Direct mapping] Small kinetochore-associated protein
Show all
Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Disease related genes Human disease related genes Immune system diseases Primary immunodeficiency Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
Q9Y448 [Direct mapping] Small kinetochore-associated protein
Show all
Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Disease related genes Human disease related genes Immune system diseases Primary immunodeficiency Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
H0YM11 [Direct mapping] Small kinetochore-associated protein
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Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Human disease related genes Immune system diseases Primary immunodeficiency Protein evidence (Ezkurdia et al 2014)
V9GY01 [Direct mapping] Chromosome 15 open reading frame 23, isoform CRA_d; Small kinetochore-associated protein
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Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Human disease related genes Immune system diseases Primary immunodeficiency Protein evidence (Ezkurdia et al 2014)
The Human Protein Atlas project is funded
