Gene Symbol | KNSTRN |
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Entrez Gene | 90417 |
Alt Symbol | C15orf23, HSD11, SKAP, TRAF4AF1 |
Species | Human |
Gene Type | protein-coding |
Description | kinetochore-localized astrin/SPAG5 binding protein |
Other Description | TRAF4 associated factor 1|TRAF4-associated factor 1|kinastrin|kinetochore-localized astrin-binding protein|kinetochore-localized astrin/SPAG5-binding protein|putative TRAF4-associated factor 1|small kinetochore associated protein|small kinetochore-associated protein|small kinetochore-associated protein, kinetochore-localized astrin-binding protein, TRAF4 associated factor 1 |
Swissprots | Q9Y448 Q6PJM0 Q32Q57 Q6P2S5 B4DXA7 Q86XB4 Q147U5 Q5ISJ0 |
Accessions | EAW92409 EAW92410 EAW92411 EAW92412 Q9Y448 AK027408 AK125765 AK298156 BAG60430 AK301887 BAG63319 AW156972 AY652615 AAT66172 BC004543 AAH04543 BC014060 AAH14060 BC021124 BC045739 AAH45739 BC064344 AAH64344 BC107802 AAI07803 BC118559 AAI18560 BC118639 AAI18640 DC396708 U81002 AAD24201 NM_001142761 NP_001136233 NM_001142762 NP_001136234 NM_033286 NP_150628 |
Function | Essential component of the mitotic spindle required for faithful chromosome segregation and progression into anaphase (PubMed:19667759). Promotes the metaphase-to-anaphase transition and is required for chromosome alignment, normal timing of sister chromatid segregation, and maintenance of spindle pole architecture (PubMed:19667759, PubMed:22110139). The astrin (SPAG5)-kinastrin (SKAP) complex promotes stable microtubule- kinetochore attachments (PubMed:21402792). 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 (PubMed:23035123). May be involved in UV- induced apoptosis via its interaction with PRPF19; however, these results need additional evidences (PubMed:24718257). {ECO:0000269|PubMed:19667759, ECO:0000269|PubMed:21402792, ECO:0000269|PubMed:22110139, ECO:0000269|PubMed:23035123, ECO:0000305|PubMed:24718257} |
Subcellular Location | Nucleus {ECO:0000269|PubMed:24718257}. Chromosome, centromere, kinetochore {ECO:0000269|PubMed:19667759, ECO:0000269|PubMed:21402792, ECO:0000269|PubMed:22110139, ECO:0000269|PubMed:23035123}. Cytoplasm, cytoskeleton, spindle pole {ECO:0000269|PubMed:19667759}. 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 (PubMed:23035123). {ECO:0000269|PubMed:19667759, ECO:0000269|PubMed:21402792, ECO:0000269|PubMed:22110139, ECO:0000269|PubMed:23035123}. |
Tissue Specificity | Widely expressed, including in skin. {ECO:0000269|PubMed:25194279}. |
C15orf23 (E-19) - sc-245337 from Santa Cruz Biotechnology
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C15orf23 (S-18) - sc-245336 from Santa Cruz Biotechnology
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Anti-TRAF4AF1 antibody - ab122769 from Abcam
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Anti-TRAF4AF1 antibody - N-terminal - ab177321 from Abcam
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Anti-SKAP / HSD11 Antibody (aa151-200) - LS-C170641 from LifeSpan Bioscience
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Anti-SKAP / HSD11 Antibody (aa31-80) - LS-C170642 from LifeSpan Bioscience
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SKAP Antibody - NBP1-94007 from Novus Biologicals
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Anti-KNSTRN antibody produced in rabbit - HPA042027 from Sigma-Aldrich
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Anti-C15orf23 (151-165) antibody produced in rabbit - SAB1103031 from Sigma-Aldrich
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C15orf23 Antibody - middle region (ARP69085_P050) - ARP69085_P050 from Aviva Systems Biology
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C15orf23 Antibody - N-terminal region (ARP69086_P050) - ARP69086_P050 from Aviva Systems Biology
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Anti-KNSTRN (aa 31-80) polyclonal antibody - DPABH-12376 from Creative Diagnostics
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Anti-KNSTRN (aa 85-169) polyclonal antibody - DPABH-21063 from Creative Diagnostics
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C15orf23-Antibody-N-terminal-region-AI15706 - AI15706 from Abgent, a WuXi AppTec company
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C15orf23 antibody - 26189-1-AP from Acris Antibodies
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C15orf23 antibody - 26189-1-AP from Proteintech Group
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KNSTRN - A9751 from NeoScientific
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KNSTRN Polyclonal Antibody - A9751 from ABclonal
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Rabbit anti-human Corticosteroid 11-beta-dehydrogenase isozyme 1 polyclonal Antibody - CSB-PA010763LA01HU from ARP American Research Products
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C15orf23 Antibody - abx124845 from Abbexa
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KNSTRN antibody - TA333584 from Acris Antibodies
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KNSTRN antibody - TA333585 from Acris Antibodies
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Anti-C15ORF23 polyclonal antibody - CABT-BL556 from Creative Diagnostics
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Anti-C15orf23 Antibody A08791 - A08791 from Boster Bio
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KNSTRN Polyclonal Antibody - A14306 from ABclonal
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