UniProt Protein 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). |
UniProt Code: | Q9Y448 |
NCBI GenInfo Identifier: | 218505831 |
NCBI Gene ID: | 90417 |
NCBI Accession: | NP_001136233.1 |
UniProt Secondary Accession: | Q9Y448,Q147U5, Q32Q57, Q5ISJ0, Q6P2S5, Q6PJM0, Q86XB4 B4DXA7, |
UniProt Related Accession: | Q9Y448 |
Molecular Weight: | 26,586 Da |
NCBI Full Name: | small kinetochore-associated protein isoform b |
NCBI Synonym Full Names: | kinetochore localized astrin (SPAG5) binding protein |
NCBI Official Symbol: | KNSTRN |
NCBI Official Synonym Symbols: | SKAP; HSD11; C15orf23; TRAF4AF1 |
NCBI Protein Information: | small kinetochore-associated protein |
UniProt Protein Name: | Small kinetochore-associated protein |
UniProt Synonym Protein Names: | Kinetochore-localized astrin-binding protein |
Protein Family: | Small kinetochore-associated protein |
UniProt Gene Name: | KNSTRN |