Harmonizome 3.0

establishment of sister chromatid cohesion N-acetyltransferase 1

Enables identical protein binding activity; peptide-lysine-N-acetyltransferase activity; and zinc ion binding activity. Involved in peptidyl-lysine acetylation; post-translational protein acetylation; and regulation of DNA replication. Located in chromatin. [provided by Alliance of Genome Resources, Mar 2025]

establishment of sister chromatid cohesion N-acetyltransferase 2

This gene encodes a protein that may have acetyltransferase activity and may be required for the establishment of sister chromatid cohesion during the S phase of mitosis. Mutations in this gene have been associated with Roberts syndrome. [provided by RefSeq, Jul 2008]

spindle and kinetochore associated complex subunit 1

Enables microtubule binding activity. Involved in attachment of mitotic spindle microtubules to kinetochore; negative regulation of mitotic spindle assembly checkpoint signaling; and positive regulation of microtubule polymerization. Located in intercellular bridge; kinetochore; and microtubule cytoskeleton. Part of SKA complex. [provided by Alliance of Genome Resources, Mar 2025]

spindle and kinetochore associated complex subunit 3

This gene encodes a component of the spindle and kinetochore-associated protein complex that regulates microtubule attachment to the kinetochores during mitosis. The encoded protein localizes to the outer kinetechore and may be required for normal chromosome segregation and cell division. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2009]

spindle and kinetochore associated complex subunit 2

Enables microtubule binding activity. Involved in attachment of mitotic spindle microtubules to kinetochore and regulation of microtubule polymerization or depolymerization. Located in spindle microtubule. Part of SKA complex. [provided by Alliance of Genome Resources, Mar 2025]

spindle apparatus coiled-coil protein 1

This gene encodes a coiled-coil domain-containing protein that functions in mitotic spindle formation and chromosome segregation. The encoded protein plays a role in coordinating microtubule attachment by promoting recruitment of dynein proteins, and in mitotic checkpoint signaling. [provided by RefSeq, Jul 2016]

spindle and kinetochore associated complex subunit 2 pseudogene 1

mitotic spindle organizing protein 2A

Located in centrosome; cytosol; and nucleoplasm. [provided by Alliance of Genome Resources, Mar 2025]

mitotic spindle organizing protein 2B

Located in cytosol; microtubule cytoskeleton; and nucleoplasm. Part of gamma-tubulin ring complex. [provided by Alliance of Genome Resources, Mar 2025]

centriole, cilia and spindle-associated protein

Enables microtubule binding activity. Involved in mitotic spindle microtubule depolymerization and regulation of mitotic spindle assembly. Located in axon; ciliary transition zone; and cytoskeleton. [provided by Alliance of Genome Resources, Mar 2025]

Sfi1 homolog, spindle assembly associated (yeast)

Enables phosphatase binding activity. Predicted to be located in cytosol. [provided by Alliance of Genome Resources, Mar 2025]

centrosome and spindle pole associated protein 1

This gene encodes a centrosome and spindle pole associated protein. The encoded protein plays a role in cell-cycle progression and spindle organization, regulates cytokinesis, interacts with Nephrocystin 8 and is required for cilia formation. Mutations in this gene result in primary cilia abnormalities and classical Joubert syndrome. Alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Apr 2014]

spindle assembly 6 homolog (C. elegans)

The protein encoded by this gene is a central component of centrioles and is necessary for their duplication and function. Centrioles adopt a cartwheel-shaped structure, with the encoded protein forming the hub and spokes inside a microtubule cylinder. Defects in this gene are a cause of autosomal recessive primary microcephaly. [provided by RefSeq, Oct 2016]

mitotic spindle positioning

The protein encoded by this gene is an actin-bundling protein involved in determining cell morphology and mitotic progression. The encoded protein is required for the proper positioning of the mitotic spindle. Two transcript variants, one protein-coding and the other non-protein coding, have been found for this gene. [provided by RefSeq, Feb 2016]

spindle and centriole associated protein 1

Involved in metaphase chromosome alignment; mitotic spindle assembly; and regulation of centriole replication. Located in centriole; centrosome; and spindle. [provided by Alliance of Genome Resources, Mar 2025]

mitotic spindle organizing protein 1 pseudogene 2

asp (abnormal spindle) homolog, microcephaly associated (Drosophila)

This gene is the human ortholog of the Drosophila melanogaster 'abnormal spindle' gene (asp), which is essential for normal mitotic spindle function in embryonic neuroblasts. Studies in mouse also suggest a role of this gene in mitotic spindle regulation, with a preferential role in regulating neurogenesis. Mutations in this gene are associated with microcephaly primary type 5. Multiple transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, May 2011]

mitotic spindle organizing protein 1

Involved in gamma-tubulin complex localization. Located in centrosome and spindle. Part of gamma-tubulin ring complex. [provided by Alliance of Genome Resources, Mar 2025]

mitotic spindle assembly checkpoint protein MAD2A-like

nucleolar and spindle associated protein 1

NUSAP1 is a nucleolar-spindle-associated protein that plays a role in spindle microtubule organization (Raemaekers et al., 2003 [PubMed 12963707]).[supplied by OMIM, Jun 2009]

extra spindle pole bodies homolog 1 (S. cerevisiae)

Stable cohesion between sister chromatids before anaphase and their timely separation during anaphase are critical for chromosome inheritance. In vertebrates, sister chromatid cohesion is released in 2 steps via distinct mechanisms. The first step involves phosphorylation of STAG1 (MIM 604358) or STAG2 (MIM 300826) in the cohesin complex. The second step involves cleavage of the cohesin subunit SCC1 (RAD21; MIM 606462) by ESPL1, or separase, which initiates the final separation of sister chromatids (Sun et al., 2009 [PubMed 19345191]).[supplied by OMIM, Nov 2010]