4CA0 | pdb_00004ca0

Structural Basis for the microtubule binding of the human kinetochore Ska complex

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	SKA1_C	e4ca0B1	A: alpha arrays	X: HTH	H: HTH	T: winged	F: SKA1_C	ECOD (1.6)
A	SKA1_C	e4ca0A1	A: alpha arrays	X: HTH	H: HTH	T: winged	F: SKA1_C	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	1.10.10.1890	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Ska1 microtubule binding domain-like	CATH (4.3.0)
A	1.10.10.1890	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Ska1 microtubule binding domain-like	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF07160	Spindle and kinetochore-associated protein 1 (SKA1)	Spindle and kinetochore-associated protein 1	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	SPINDLE AND KINETOCHORE-ASSOCIATED PROTEIN 1	cytoskeletal protein binding microtubule binding protein binding binding tubulin binding	cellular process cell cycle mitotic cell cycle establishment of organelle localization cellular localization sexual reproduction reproductive process microtubule cytoskeleton organization establishment of meiotic spindle localization spindle localization establishment or maintenance of cell polarity meiotic cell cycle process cellular component organization localization cellular process cell cycle mitotic cell cycle establishment of organelle localization cellular localization sexual reproduction reproductive process microtubule cytoskeleton organization establishment of meiotic spindle localization spindle localization establishment or maintenance of cell polarity meiotic cell cycle process cellular component organization localization establishment of spindle localization establishment of spindle orientation organelle localization establishment of localization in cell cellular component organization or biogenesis cell cycle process establishment of meiotic spindle orientation meiotic cell cycle establishment of localization establishment of cell polarity organelle organization microtubule-based process cytoskeleton organization mitotic metaphase chromosome alignment metaphase chromosome alignment chromosome localization mitotic sister chromatid segregation chromosome segregation mitotic nuclear division attachment of spindle microtubules to kinetochore organelle fission attachment of mitotic spindle microtubules to kinetochore chromosome organization sister chromatid segregation nuclear division mitotic cell cycle process nuclear chromosome segregation cell division regulation of cytoskeleton organization regulation of microtubule polymerization or depolymerization regulation of biological process regulation of cellular component organization regulation of cellular process biological regulation regulation of microtubule-based process regulation of organelle organization microtubule polymerization or depolymerization regulation of microtubule cytoskeleton organization positive regulation of organelle organization positive regulation of cellular component organization positive regulation of biological process cellular component biogenesis regulation of protein-containing complex assembly positive regulation of protein-containing complex assembly cellular component assembly positive regulation of protein polymerization protein-containing complex assembly positive regulation of cellular process protein polymerization positive regulation of microtubule polymerization or depolymerization protein-containing complex organization positive regulation of cellular component biogenesis positive regulation of cytoskeleton organization microtubule polymerization positive regulation of supramolecular fiber organization regulation of cellular component biogenesis positive regulation of microtubule polymerization regulation of protein polymerization regulation of microtubule polymerization regulation of supramolecular fiber organization supramolecular fiber organization cellular response to stimulus negative regulation of spindle checkpoint response to stimulus spindle checkpoint signaling regulation of signal transduction regulation of mitotic nuclear division negative regulation of mitotic spindle assembly checkpoint signaling intracellular signal transduction negative regulation of mitotic cell cycle regulation of cell cycle checkpoint negative regulation of mitotic sister chromatid segregation negative regulation of chromosome organization positive regulation of mitotic metaphase/anaphase transition positive regulation of mitotic cell cycle phase transition negative regulation of cell cycle phase transition mitotic spindle checkpoint signaling mitotic sister chromatid separation negative regulation of sister chromatid segregation mitotic spindle assembly checkpoint signaling regulation of mitotic sister chromatid segregation regulation of response to stimulus negative regulation of mitotic nuclear division regulation of chromosome segregation regulation of mitotic sister chromatid separation spindle assembly checkpoint signaling negative regulation of intracellular signal transduction regulation of mitotic metaphase/anaphase transition regulation of mitotic cell cycle positive regulation of metaphase/anaphase transition of cell cycle positive regulation of cell cycle process negative regulation of mitotic metaphase/anaphase transition positive regulation of mitotic cell cycle regulation of cell cycle negative regulation of chromosome separation regulation of signaling negative regulation of signal transduction positive regulation of cell cycle cell cycle checkpoint signaling negative regulation of chromosome segregation negative regulation of nuclear division chromosome separation positive regulation of cell cycle phase transition negative regulation of metaphase/anaphase transition of cell cycle regulation of cell communication regulation of cell cycle phase transition negative regulation of biological process negative regulation of cell cycle positive regulation of mitotic nuclear division cell communication signal transduction negative regulation of cellular component organization regulation of cell cycle process regulation of spindle checkpoint positive regulation of nuclear division regulation of chromosome organization regulation of mitotic cell cycle phase transition positive regulation of chromosome organization regulation of chromosome separation negative regulation of cell cycle checkpoint regulation of metaphase/anaphase transition of cell cycle regulation of mitotic spindle checkpoint signaling negative regulation of signaling regulation of mitotic cell cycle spindle assembly checkpoint cell cycle phase transition negative regulation of cell communication regulation of intracellular signal transduction negative regulation of cellular process positive regulation of chromosome segregation negative regulation of mitotic cell cycle phase transition negative regulation of response to stimulus negative regulation of cell cycle process positive regulation of mitotic sister chromatid segregation mitotic cell cycle checkpoint signaling negative regulation of organelle organization regulation of sister chromatid segregation negative regulation of mitotic sister chromatid separation regulation of nuclear division positive regulation of mitotic sister chromatid separation metaphase/anaphase transition of mitotic cell cycle positive regulation of chromosome separation metaphase/anaphase transition of cell cycle mitotic cell cycle phase transition meiotic chromosome segregation membraneless organelle assembly female gamete generation gamete generation female meiotic nuclear division meiotic nuclear division spindle organization organelle assembly multicellular organismal reproductive process meiotic spindle organization meiotic spindle assembly spindle assembly spindle assembly involved in female meiosis	membrane-bounded organelle cell projection cellular anatomical structure organelle cilium plasma membrane bounded cell projection protein-containing complex intracellular anatomical structure intracellular membraneless organelle chromosome chromosomal region SKA complex kinetochore intracellular organelle membrane-bounded organelle cell projection cellular anatomical structure organelle cilium plasma membrane bounded cell projection protein-containing complex intracellular anatomical structure intracellular membraneless organelle chromosome chromosomal region SKA complex kinetochore intracellular organelle membraneless organelle chromosome, centromeric region outer kinetochore condensed chromosome, centromeric region supramolecular complex condensed chromosome centrosome microtubule organizing center cytoskeleton microtubule cytoskeleton centriolar satellite cytoplasm cytosol mitotic spindle spindle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen intercellular bridge polymeric cytoskeletal fiber spindle microtubule supramolecular fiber microtubule supramolecular polymer ciliary basal body mitotic spindle microtubule

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR042031	SKA1 microtubule binding domain superfamily	Homologous Superfamily
A, B	IPR009829	Spindle and kinetochore-associated protein 1	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: Q96BD8	atypical teratoid rhabdoid tumor hepatocellular carcinoma malignant glioma primitive neuroectodermal tumor B-cell chronic lymphocytic leukemia large cell medulloblastoma medulloblastoma psoriasis glioblastoma lung cancer osteosarcoma

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.