Annotations: 4QQ2

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d4qq2a_	All beta proteins	TNF-like	TNF-like	automated matches	automated matches	mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
B	d4qq2b_	All beta proteins	TNF-like	TNF-like	automated matches	automated matches	mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
C	d4qq2c_	All beta proteins	TNF-like	TNF-like	automated matches	automated matches	mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	TNF-like	8070836	3000061	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	TNF-like	8070836	3000061	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	TNF-like	8070836	3000061	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	PF00386	e4qq2A1	A: beta sandwiches	X: jelly-roll	H: TNF-like (From Topology)	T: TNF-like	F: PF00386	ECOD (1.6)
B	PF00386	e4qq2B1	A: beta sandwiches	X: jelly-roll	H: TNF-like (From Topology)	T: TNF-like	F: PF00386	ECOD (1.6)
C	PF00386	e4qq2C1	A: beta sandwiches	X: jelly-roll	H: TNF-like (From Topology)	T: TNF-like	F: PF00386	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.120.40	Mainly Beta	Sandwich	Jelly Rolls		CATH (4.3.0)
B	2.60.120.40	Mainly Beta	Sandwich	Jelly Rolls		CATH (4.3.0)
C	2.60.120.40	Mainly Beta	Sandwich	Jelly Rolls		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF00386	C1q domain (C1q)	C1q domain	C1q is a subunit of the C1 enzyme complex that activates the serum complement system.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	C1q-related factor	protein binding binding signaling receptor binding	developmental process multicellular organismal process cellular developmental process cell development developmental maturation nervous system development generation of neurons neurogenesis multicellular organism development neuron differentiation neuron remodeling anatomical structure maturation cell differentiation neuron development anatomical structure development developmental process multicellular organismal process cellular developmental process cell development developmental maturation nervous system development generation of neurons neurogenesis multicellular organism development neuron differentiation neuron remodeling anatomical structure maturation cell differentiation neuron development anatomical structure development neuron maturation cellular process cell maturation system development cellular component disassembly regulation of synapse pruning regulation of biological process regulation of cellular component organization regulation of cellular process cell junction disassembly synapse pruning biological regulation cellular component organization regulation of synapse organization cell junction organization regulation of synapse structure or activity synapse organization cellular component organization or biogenesis regulation of biological quality behavior system process learning learning or memory nervous system process motor learning cognition maintenance of synapse structure cell junction maintenance cellular component maintenance	protein-containing complex collagen trimer axon cell projection neuron projection climbing fiber cellular anatomical entity plasma membrane bounded cell projection synaptic cleft extracellular region presynapse synapse cell junction intracellular anatomical structure protein-containing complex collagen trimer axon cell projection neuron projection climbing fiber cellular anatomical entity plasma membrane bounded cell projection synaptic cleft extracellular region presynapse synapse cell junction intracellular anatomical structure cytoplasm cerebellar climbing fiber to Purkinje cell synapse neuron to neuron synapse asymmetric synapse glutamatergic synapse excitatory synapse asymmetric, glutamatergic, excitatory synapse

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C	IPR008160	Collagen triple helix repeat	Repeat
A, B, C	IPR008983	Tumour necrosis factor-like domain superfamily	Homologous Superfamily
A, B, C	IPR001073	C1q 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 R01GM133198.