Annotations: 8CI3

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Histone	e8ci3B1	A: alpha bundles	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Histone	ECOD (develop294)
A	Histone	e8ci3A1	A: alpha bundles	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Histone	ECOD (develop294)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00084	Sushi repeat (SCR repeat) (Sushi)	Sushi repeat (SCR repeat)		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Membrane cofactor protein	-	biological process involved in interspecies interaction between organisms response to stimulus immune response response to other organism defense response defense response to symbiont response to external stimulus response to biotic stimulus immune system process defense response to other organism response to stress innate immune response response to external biotic stimulus regulation of humoral immune response biological process involved in interspecies interaction between organisms response to stimulus immune response response to other organism defense response defense response to symbiont response to external stimulus response to biotic stimulus immune system process defense response to other organism response to stress innate immune response response to external biotic stimulus regulation of humoral immune response adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains regulation of immune effector process lymphocyte mediated immunity regulation of humoral immune response mediated by circulating immunoglobulin negative regulation of biological process negative regulation of lymphocyte mediated immunity complement activation positive regulation of immune response negative regulation of complement activation, classical pathway leukocyte mediated immunity regulation of immune system process positive regulation of immune system process complement activation, classical pathway regulation of biological process negative regulation of B cell mediated immunity regulation of adaptive immune response negative regulation of immune response negative regulation of immune effector process negative regulation of humoral immune response negative regulation of adaptive immune response regulation of B cell mediated immunity immune effector process negative regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains regulation of leukocyte mediated immunity negative regulation of immunoglobulin mediated immune response regulation of response to stimulus B cell mediated immunity regulation of complement activation, classical pathway regulation of immune response regulation of complement activation activation of immune response humoral immune response positive regulation of biological process negative regulation of complement activation positive regulation of response to stimulus humoral immune response mediated by circulating immunoglobulin regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains regulation of immunoglobulin mediated immune response negative regulation of response to stimulus negative regulation of humoral immune response mediated by circulating immunoglobulin biological regulation immunoglobulin mediated immune response adaptive immune response regulation of lymphocyte mediated immunity negative regulation of immune system process negative regulation of leukocyte mediated immunity T cell mediated immunity sexual reproduction reproductive process fertilization single fertilization	cell surface cellular anatomical structure cell periphery plasma membrane membrane membrane-bounded organelle acrosomal vesicle intracellular anatomical structure intracellular vesicle intracellular membrane-bounded organelle acrosomal membrane endomembrane system intracellular organelle cytoplasmic vesicle membrane cell surface cellular anatomical structure cell periphery plasma membrane membrane membrane-bounded organelle acrosomal vesicle intracellular anatomical structure intracellular vesicle intracellular membrane-bounded organelle acrosomal membrane endomembrane system intracellular organelle cytoplasmic vesicle membrane bounding membrane of organelle vesicle membrane cytoplasmic vesicle organelle inner acrosomal membrane secretory granule secretory vesicle cytoplasm vesicle organelle membrane secretory granule membrane extracellular region extracellular space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR017341	Membrane cofactor protein CD46	Family
A, B	IPR000436	Sushi/SCR/CCP domain	Domain
A, B	IPR035976	Sushi/SCR/CCP superfamily	Homologous Superfamily

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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.