ID:SKAP_HUMAN DESCRIPTION: RecName: Full=Small kinetochore-associated protein; Short=SKAP; AltName: Full=Kinetochore-localized astrin-binding protein; Short=Kinastrin; AltName: Full=TRAF4-associated factor 1; FUNCTION: Essential component of the mitotic spindle required for faithful chromosome segregation and progression into anaphase. Promotes the metaphase-to-anaphase transition and is required for chromosome alignment, normal timing of sister chromatid segregation, and maintenance of spindle pole architecture. The astrin (SPAG5)-kinastrin (SKAP) complex promotes stable microtubule-kinetochore attachments. SUBUNIT: Part of an astrin (SPAG5)-kinastrin (SKAP) complex containing SKAP, SPAG5, PLK1, DYNLL1 and SGOL2. Interacts with SPAG5. Directly binds to microtubules, although at relatively low affinity. Interacts with CENPE; this interaction greatly favors microtubule-binding. SUBCELLULAR LOCATION: Nucleus. Chromosome, centromere, kinetochore. Cytoplasm, cytoskeleton, spindle pole. Note=Colocalizes with microtubules around centrosomes in prophase and with the mitotic spindle at prometaphase and metaphase. From late prometaphase to anaphase, is highly concentrated on kinetochores. Located at the kinetochore-microtubule interface. The astrin (SPAG5)-kinastrin (SKAP) complex localizes to the microtubule plus ends. INDUCTION: Degraded at the end of mitosis. Down-regulated upon exposure to nitric oxide. SEQUENCE CAUTION: Sequence=AAH04543.1; Type=Erroneous termination; Positions=174; Note=Translated as Glu; Sequence=AAH14060.1; Type=Erroneous termination; Positions=174; Note=Translated as Glu; Sequence=AAI07803.1; Type=Erroneous initiation; Note=Translation N-terminally shortened;
The RNAfold program from the Vienna RNA Package is used to perform the secondary structure predictions and folding calculations. The estimated folding energy is in kcal/mol. The more negative the energy, the more secondary structure the RNA is likely to have.
Protein Domain and Structure Information
ModBase Predicted Comparative 3D Structure on Q9Y448
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Orthologous Genes in Other Species
Orthologies between human, mouse, and rat are computed by taking the best BLASTP hit, and filtering out non-syntenic hits. For more distant species reciprocal-best BLASTP hits are used. Note that the absence of an ortholog in the table below may reflect incomplete annotations in the other species rather than a true absence of the orthologous gene.
US Server
Sequence and Links to Tools and Databases 
Common Gene Haplotype Alleles 
