Annotations: 3T6Q

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C [auth B]	AARP2CN	e3t6qB1	A: alpha bundles	X: Spectrin repeat-like	H: Spectrin repeat	T: Spectrin repeat	F: AARP2CN	ECOD (develop294)
A	AARP2CN	e3t6qA1	A: alpha bundles	X: Spectrin repeat-like	H: Spectrin repeat	T: Spectrin repeat	F: AARP2CN	ECOD (develop294)
D	UCH_N	e3t6qD1	A: alpha bundles	X: Lipocalins/Streptavidin	H: Zn-dependent exopeptidases	T: Zn-dependent exopeptidases	F: UCH_N	ECOD (develop294)
B [auth C]	MATH_2	e3t6qC1	A: alpha bundles	X: Baculovirus p35 protein-related	H: Bet v1-like	T: Bet v1-like	F: MATH_2	ECOD (develop294)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	2.60.40.770	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)
B [auth C]	2.60.40.770	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, C [auth B]	PF13855	Leucine rich repeat (LRR_8)	Leucine rich repeat	-	Repeat
A, C [auth B]	PF18831	Leucine-rich repeat (LRR_11)	Leucine-rich repeat	-	Repeat
B [auth C], D	PF02221	ML domain (E1_DerP2_DerF2)	ML domain	ML domain - MD-2-related lipid recognition domain. This family consists of proteins from plants, animals and fungi, including dust mite allergen Der P 2 (Swiss:P49278). It has been implicate in lipid recognition, particularly in the recognition of pa ...	ML domain - MD-2-related lipid recognition domain. This family consists of proteins from plants, animals and fungi, including dust mite allergen Der P 2 (Swiss:P49278). It has been implicate in lipid recognition, particularly in the recognition of pathogen related products. A mutation in Npc2 (Swiss:Q15668) causes a rare form of Niemann-Pick type C2 disease. This domain has a similar topology to immunoglobulin domains.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, C [auth B]	CD180 antigen	molecular transducer activity signaling receptor activity pattern recognition receptor activity lipopolysaccharide immune receptor activity	multicellular organismal process cell population proliferation B cell activation cell activation B cell proliferation lymphocyte activation leukocyte proliferation leukocyte activation mononuclear cell proliferation immune system process lymphocyte proliferation cellular process cellular response to stimulus positive regulation of cell communication multicellular organismal process cell population proliferation B cell activation cell activation B cell proliferation lymphocyte activation leukocyte proliferation leukocyte activation mononuclear cell proliferation immune system process lymphocyte proliferation cellular process cellular response to stimulus positive regulation of cell communication regulation of lipopolysaccharide-mediated signaling pathway positive regulation of response to biotic stimulus regulation of response to biotic stimulus biological process involved in interspecies interaction between organisms regulation of cellular process positive regulation of signal transduction response to stimulus regulation of response to external stimulus response to lipid signaling cellular response to lipopolysaccharide positive regulation of biological process regulation of signal transduction response to biotic stimulus cell communication positive regulation of response to stimulus lipopolysaccharide-mediated signaling pathway cellular response to biotic stimulus positive regulation of response to external stimulus response to bacterium response to external biotic stimulus signal transduction positive regulation of cellular process regulation of biological process regulation of signaling cell surface receptor signaling pathway response to other organism biological regulation response to oxygen-containing compound response to external stimulus cellular response to molecule of bacterial origin response to lipopolysaccharide cellular response to oxygen-containing compound cellular response to chemical stimulus regulation of response to stimulus response to chemical cellular response to lipid regulation of cell communication positive regulation of lipopolysaccharide-mediated signaling pathway response to molecule of bacterial origin positive regulation of signaling defense response response to stress inflammatory response immune response defense response to symbiont defense response to other organism innate immune response B cell proliferation involved in immune response B cell activation involved in immune response cell activation involved in immune response immune effector process leukocyte activation involved in immune response lymphocyte activation involved in immune response	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus intracellular organelle lumen intracellular organelle cellular anatomical structure organelle lumen organelle membraneless organelle nuclear lumen membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus intracellular organelle lumen intracellular organelle cellular anatomical structure organelle lumen organelle membraneless organelle nuclear lumen cell periphery plasma membrane membrane mitotic spindle cytoskeleton spindle microtubule cytoskeleton nucleoplasm
B [auth C], D	Lymphocyte antigen 86	-	response to stimulus defense response response to stress inflammatory response biological process involved in interspecies interaction between organisms immune response response to other organism defense response to symbiont response to external stimulus response to biotic stimulus immune system process defense response to other organism innate immune response response to external biotic stimulus response to stimulus defense response response to stress inflammatory response biological process involved in interspecies interaction between organisms immune response response to other organism defense response to symbiont response to external stimulus response to biotic stimulus immune system process defense response to other organism innate immune response response to external biotic stimulus cellular response to stimulus positive regulation of cell communication regulation of lipopolysaccharide-mediated signaling pathway positive regulation of response to biotic stimulus regulation of response to biotic stimulus regulation of cellular process positive regulation of signal transduction regulation of response to external stimulus response to lipid signaling cellular response to lipopolysaccharide positive regulation of biological process regulation of signal transduction cell communication positive regulation of response to stimulus lipopolysaccharide-mediated signaling pathway cellular response to biotic stimulus positive regulation of response to external stimulus response to bacterium signal transduction positive regulation of cellular process regulation of biological process regulation of signaling cell surface receptor signaling pathway biological regulation response to oxygen-containing compound cellular response to molecule of bacterial origin response to lipopolysaccharide cellular response to oxygen-containing compound cellular response to chemical stimulus regulation of response to stimulus response to chemical cellular response to lipid regulation of cell communication cellular process positive regulation of lipopolysaccharide-mediated signaling pathway response to molecule of bacterial origin positive regulation of signaling	cellular anatomical structure extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, C [auth B]	IPR001611	Leucine-rich repeat	Repeat
A, C [auth B]	IPR003591	Leucine-rich repeat, typical subtype	Repeat
A, C [auth B]	IPR032675	Leucine-rich repeat domain superfamily	Homologous Superfamily
A, C [auth B]	IPR000483	Cysteine-rich flanking region, C-terminal	Domain
A, C [auth B]	IPR041281	CD180, leucine-rich repeat	Repeat
B [auth C], D	IPR039945	Lymphocyte antigen 86	Family
B [auth C], D	IPR014756	Immunoglobulin E-set	Homologous Superfamily
B [auth C], D	IPR003172	MD-2-related lipid-recognition domain	Domain

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.