9D41 | pdb_00009d41

Crystal structure of N-terminal domain of Borealin (20-88) in complex with synthetic antibody fragment

External Resource: Annotation

Domain Annotation: SCOP2 Classification
SAbDab Antibody Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	CPC core-like	8053504	3002197	SCOP2B (2022-06-29)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
C [auth L]	Light Chain	IGKV1	Kappa	borealin	SAbDab (2025-12-19)
B [auth H]	Heavy Chain	IGHV3	-	borealin	SAbDab (2025-12-19)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Borealin	-	cellular process cell cycle mitotic cell cycle mitotic spindle elongation spindle midzone assembly spindle elongation microtubule cytoskeleton organization membraneless organelle assembly cellular component organization cellular component biogenesis cellular component assembly mitotic sister chromatid segregation cellular component organization or biogenesis chromosome segregation cellular process cell cycle mitotic cell cycle mitotic spindle elongation spindle midzone assembly spindle elongation microtubule cytoskeleton organization membraneless organelle assembly cellular component organization cellular component biogenesis cellular component assembly mitotic sister chromatid segregation cellular component organization or biogenesis chromosome segregation microtubule cytoskeleton organization involved in mitosis spindle organization cell cycle process mitotic nuclear division organelle assembly organelle fission chromosome organization sister chromatid segregation spindle assembly mitotic spindle organization mitotic spindle assembly organelle organization nuclear division mitotic cell cycle process nuclear chromosome segregation microtubule-based process mitotic spindle midzone assembly cytoskeleton organization cytoskeleton-dependent cytokinesis mitotic cytokinesis cytokinesis 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 cell cycle phase transition 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 negative regulation of nuclear division negative regulation of organelle organization chromosome separation 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 mitotic metaphase chromosome alignment metaphase chromosome alignment localization chromosome localization organelle localization positive regulation of mitotic sister chromatid separation positive regulation of chromosome separation positive regulation of cell division positive regulation of mitotic cytokinesis regulation of cell division regulation of mitotic cytokinesis positive regulation of cytokinesis regulation of cytokinesis regulation of localization regulation of attachment of mitotic spindle microtubules to kinetochore regulation of attachment of spindle microtubules to kinetochore positive regulation of chromosome segregation attachment of spindle microtubules to kinetochore attachment of mitotic spindle microtubules to kinetochore positive regulation of attachment of spindle microtubules to kinetochore positive regulation of attachment of mitotic spindle microtubules to kinetochore regulation of metaphase plate congression	midbody cellular anatomical structure membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus intracellular organelle lumen intracellular organelle organelle lumen organelle membraneless organelle midbody cellular anatomical structure membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus intracellular organelle lumen intracellular organelle organelle lumen organelle membraneless organelle nuclear lumen cytoskeleton spindle spindle midzone microtubule cytoskeleton cytoplasm cytosol chromosome, centromeric region chromosome chromosomal region nucleoplasm protein-containing complex chromosome passenger complex microtubule associated complex intercellular bridge chromocenter
C [auth L]	Fab Light Chain	-	-	-
B [auth H]	Fab Heavy Chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR046466	Borealin, C-terminal	Domain
A	IPR018851	Borealin, N-terminal	Domain
A	IPR018867	Cell division protein borealin	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q53HL2	adrenal cortex carcinoma breast carcinoma hepatocellular carcinoma lung adenocarcinoma medulloblastoma ovarian carcinoma primitive neuroectodermal tumor atypical teratoid rhabdoid tumor endometrial carcinoma invasive ductal breast carcinoma malignant glioma non-small cell lung carcinoma pancreatic intraductal papillary-mucinous carcinoma psoriasis breast cancer adrenal cortex carcinoma breast carcinoma hepatocellular carcinoma lung adenocarcinoma medulloblastoma ovarian carcinoma primitive neuroectodermal tumor atypical teratoid rhabdoid tumor endometrial carcinoma invasive ductal breast carcinoma malignant glioma non-small cell lung carcinoma pancreatic intraductal papillary-mucinous carcinoma psoriasis breast cancer glioblastoma large cell medulloblastoma malignant mesothelioma ovarian cancer pancreatic intraductal papillary-mucinous neoplasm

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.