Annotations: 2IGP

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Calponin-homology domain CH-domain	8051976	3000264	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Ndc80_HEC	e2igpA1	A: alpha bundles	X: CH domain-like	H: Calponin-homology domain-like (From Topology)	T: Calponin-homology domain-like	F: Ndc80_HEC	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.418.30	Mainly Alpha	Orthogonal Bundle	Actin-binding Protein, T-fimbrin	domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF03801	HEC/Ndc80p family (Ndc80_HEC)	HEC/Ndc80p family	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Retinoblastoma-associated protein HEC	protein binding binding cyclin binding cytoskeletal protein binding microtubule binding tubulin binding protein-macromolecule adaptor activity molecular adaptor activity kinetochore adaptor activity identical protein binding	cellular process cell cycle mitotic cell cycle establishment of organelle localization cellular localization attachment of spindle microtubules to kinetochore establishment of localization metaphase chromosome alignment localization chromosome localization organelle localization establishment of localization in cell nuclear chromosome segregation establishment of chromosome localization cellular process cell cycle mitotic cell cycle establishment of organelle localization cellular localization attachment of spindle microtubules to kinetochore establishment of localization metaphase chromosome alignment localization chromosome localization organelle localization establishment of localization in cell nuclear chromosome segregation establishment of chromosome localization chromosome segregation cell cycle process cell cycle G2/M phase transition sexual reproduction reproductive process meiotic cell cycle cell cycle phase transition meiotic cell cycle process meiotic cell cycle phase transition meiosis I cell cycle process G2/MI transition of meiotic cell cycle mitotic metaphase chromosome alignment cellular component organization mitotic sister chromatid segregation cellular component organization or biogenesis mitotic nuclear division organelle fission attachment of mitotic spindle microtubules to kinetochore chromosome organization sister chromatid segregation organelle organization nuclear division mitotic cell cycle process cell division cellular response to stimulus positive regulation of cell communication regulation of cellular process regulation of cell cycle phase transition positive regulation of signal transduction response to stimulus positive regulation of cell cycle checkpoint negative regulation of biological process spindle checkpoint signaling negative regulation of cell cycle regulation of signal transduction regulation of mitotic nuclear division intracellular signal transduction negative regulation of mitotic cell cycle cell communication regulation of cell cycle checkpoint negative regulation of mitotic sister chromatid segregation negative regulation of chromosome organization negative regulation of cell cycle phase transition mitotic spindle checkpoint signaling signal transduction mitotic sister chromatid separation negative regulation of sister chromatid segregation mitotic spindle assembly checkpoint signaling regulation of biological process negative regulation of cellular component organization regulation of cell cycle process regulation of spindle checkpoint positive regulation of intracellular signal transduction regulation of chromosome organization regulation of organelle organization regulation of mitotic cell cycle phase transition regulation of mitotic sister chromatid segregation regulation of response to stimulus positive regulation of mitotic cell cycle spindle assembly checkpoint regulation of chromosome separation negative regulation of mitotic nuclear division regulation of chromosome segregation regulation of cellular component organization regulation of mitotic sister chromatid separation regulation of metaphase/anaphase transition of cell cycle regulation of mitotic spindle checkpoint signaling regulation of mitotic cell cycle spindle assembly checkpoint spindle assembly checkpoint signaling positive regulation of biological process regulation of mitotic metaphase/anaphase transition positive regulation of response to stimulus regulation of mitotic cell cycle regulation of intracellular signal transduction negative regulation of cellular process positive regulation of cell cycle process negative regulation of mitotic metaphase/anaphase transition regulation of cell cycle negative regulation of chromosome separation positive regulation of cellular process positive regulation of spindle checkpoint regulation of signaling negative regulation of mitotic cell cycle phase transition biological regulation negative regulation of cell cycle process positive regulation of cell cycle cell cycle checkpoint signaling mitotic cell cycle checkpoint signaling negative regulation of chromosome segregation chromosome separation negative regulation of organelle organization negative regulation of nuclear division regulation of sister chromatid segregation negative regulation of mitotic sister chromatid separation regulation of nuclear division negative regulation of metaphase/anaphase transition of cell cycle metaphase/anaphase transition of mitotic cell cycle regulation of cell communication metaphase/anaphase transition of cell cycle mitotic cell cycle phase transition positive regulation of signaling microtubule organizing center organization microtubule cytoskeleton organization centrosome duplication centrosome cycle microtubule-based process cytoskeleton organization meiotic chromosome segregation non-membrane-bounded organelle assembly female gamete generation gamete generation cellular component biogenesis cellular component assembly meiosis I female meiotic nuclear division spindle assembly involved in female meiosis I meiotic nuclear division spindle organization organelle assembly multicellular organismal reproductive process meiotic spindle organization meiotic spindle assembly spindle assembly female meiosis I spindle assembly involved in female meiosis kinetochore organization regulation of protein stability regulation of biological quality spindle localization establishment or maintenance of cell polarity establishment of mitotic spindle localization establishment of spindle localization establishment of spindle orientation microtubule cytoskeleton organization involved in mitosis establishment of cell polarity establishment of mitotic spindle orientation mitotic spindle organization cell population proliferation muscle cell proliferation skeletal muscle satellite cell proliferation skeletal muscle cell proliferation striated muscle cell proliferation	membrane cellular anatomical entity intracellular organelle centrosome microtubule organizing center intracellular anatomical structure cytoskeleton organelle intracellular non-membrane-bounded organelle microtubule cytoskeleton non-membrane-bounded organelle cytoplasm cytosol Ndc80 complex membrane cellular anatomical entity intracellular organelle centrosome microtubule organizing center intracellular anatomical structure cytoskeleton organelle intracellular non-membrane-bounded organelle microtubule cytoskeleton non-membrane-bounded organelle cytoplasm cytosol Ndc80 complex protein-containing complex chromosome chromosomal region kinetochore chromosome, centromeric region outer kinetochore condensed chromosome, centromeric region supramolecular complex condensed chromosome membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR040967	Domain of unknown function DUF5595	Domain
A	IPR005550	Kinetochore protein Ndc80	Family
A	IPR038273	Ndc80 domain superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: O14777	malignant mesothelioma nasopharyngeal carcinoma ovarian cancer pilocytic astrocytoma Sjogren syndrome adrenal cortex carcinoma atypical teratoid rhabdoid tumor cholangiocarcinoma glioblastoma interstitial cystitis lung adenocarcinoma malignant ependymoma malignant pancreatic neoplasm non-small cell lung carcinoma pancreatic intraductal papillary-mucinous carcinoma malignant mesothelioma nasopharyngeal carcinoma ovarian cancer pilocytic astrocytoma Sjogren syndrome adrenal cortex carcinoma atypical teratoid rhabdoid tumor cholangiocarcinoma glioblastoma interstitial cystitis lung adenocarcinoma malignant ependymoma malignant pancreatic neoplasm non-small cell lung carcinoma pancreatic intraductal papillary-mucinous carcinoma primitive neuroectodermal tumor ulcerative colitis astrocytic tumor breast cancer ductal breast carcinoma in situ hepatocellular carcinoma invasive ductal breast carcinoma lung cancer malignant glioma medulloblastoma oligodendroglioma pancreatic intraductal papillary-mucinous neoplasm psoriasis atopic eczema breast carcinoma endometriosis IgA glomerulonephritis large cell medulloblastoma malignant colon neoplasm

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.