8DE6 | pdb_00008de6

Oligomeric C9 in complex with aE11 Fab

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
SAbDab Antibody Annotation
Protein Family 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)
G	SCOP2B Superfamily	TSP-1 type 1 repeat	8052127	3000814	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	EGF/Laminin-like	8052125	3000412	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	LDL receptor-like module	8052141	3000728	SCOP2B (2022-06-29)
F [auth C]	SCOP2B Superfamily	LDL receptor-like module	8052141	3000728	SCOP2B (2022-06-29)
F [auth C]	SCOP2B Superfamily	EGF/Laminin-like	8052125	3000412	SCOP2B (2022-06-29)
F [auth C]	SCOP2B Superfamily	TSP-1 type 1 repeat	8052127	3000814	SCOP2B (2022-06-29)
C [auth A]	SCOP2B Superfamily	EGF/Laminin-like	8052125	3000412	SCOP2B (2022-06-29)
C [auth A]	SCOP2B Superfamily	TSP-1 type 1 repeat	8052127	3000814	SCOP2B (2022-06-29)
C [auth A]	SCOP2B Superfamily	LDL receptor-like module	8052141	3000728	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)
G	Cas_Cas7	e8de6G1	A: a/b three-layered sandwiches	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Cas_Cas7	ECOD (v294.1)
F [auth C]	Cas_Cas7	e8de6C1	A: a/b three-layered sandwiches	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Cas_Cas7	ECOD (v294.1)
C [auth A]	Cas_Cas7	e8de6A1	A: a/b three-layered sandwiches	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Cas_Cas7	ECOD (v294.1)
E [auth I]	Cas_Cas7	e8de6I1	A: a/b three-layered sandwiches	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Cas_Cas7	ECOD (v294.1)
B [auth F]	Cas_Cas7	e8de6F1	A: a/b three-layered sandwiches	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Cas_Cas7	ECOD (v294.1)
D [auth B]	Cas_Cas7	e8de6B1	A: a/b three-layered sandwiches	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Cas_Cas7	ECOD (v294.1)
A [auth E]	Cas_Cas7	e8de6E1	A: a/b three-layered sandwiches	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Cas_Cas7	ECOD (v294.1)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth F], E [auth I]	Light Chain	IGKV10	Kappa	complement component c9 \| complement component c9, complement component c9	SAbDab (2026-03-27)
A [auth E], D [auth B]	Heavy Chain	IGHV2	-	complement component c9 \| complement component c9, complement component c9	SAbDab (2026-03-27)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
C [auth A], F [auth C], G	PF00090	Thrombospondin type 1 domain (TSP_1)	Thrombospondin type 1 domain		Domain
C [auth A], F [auth C], G	PF00057	Low-density lipoprotein receptor domain class A (Ldl_recept_a)	Low-density lipoprotein receptor domain class A	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth A], F [auth C], G	Complement component C9	-	regulation of biological process response to stimulus immune response biological regulation positive regulation of biological process positive regulation of response to stimulus positive regulation of immune response regulation of response to stimulus immune system process regulation of immune response regulation of immune system process positive regulation of immune system process adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains lymphocyte mediated immunity regulation of biological process response to stimulus immune response biological regulation positive regulation of biological process positive regulation of response to stimulus positive regulation of immune response regulation of response to stimulus immune system process regulation of immune response regulation of immune system process positive regulation of immune system process adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains lymphocyte mediated immunity humoral immune response complement activation humoral immune response mediated by circulating immunoglobulin leukocyte mediated immunity complement activation, classical pathway immunoglobulin mediated immune response adaptive immune response immune effector process B cell mediated immunity activation of immune response cellular process cell killing transmembrane transport localization transport establishment of localization biological process involved in interspecies interaction between organisms response to biotic stimulus response to stress innate immune response response to external biotic stimulus response to other organism defense response defense response to symbiont response to external stimulus complement activation, GZMK pathway defense response to other organism disruption of cell in another organism disruption of anatomical structure in another organism killing of cells of another organism complement activation, alternative pathway cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein complex oligomerization protein-containing complex assembly protein homooligomerization cellular component organization or biogenesis	extracellular exosome membrane-bounded organelle extracellular vesicle cellular anatomical structure extracellular organelle extracellular region organelle vesicle extracellular membrane-bounded organelle cell periphery protein-containing complex plasma membrane protein complex membrane plasma membrane extracellular exosome membrane-bounded organelle extracellular vesicle cellular anatomical structure extracellular organelle extracellular region organelle vesicle extracellular membrane-bounded organelle cell periphery protein-containing complex plasma membrane protein complex membrane plasma membrane membrane protein complex pore complex membrane attack complex blood microparticle other organism cell membrane other organism part
B [auth F], E [auth I]	aE11 Fab VL	-	-	-
A [auth E], D [auth B]	aE11 Fab VH	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C [auth A], F [auth C], G	IPR002172	Low-density lipoprotein (LDL) receptor class A repeat	Repeat
C [auth A], F [auth C], G	IPR001862	Membrane attack complex component/perforin/complement C9	Family
C [auth A], F [auth C], G	IPR036055	LDL receptor-like superfamily	Homologous Superfamily
C [auth A], F [auth C], G	IPR020863	Membrane attack complex component/perforin domain, conserved site	Conserved Site
C [auth A], F [auth C], G	IPR000884	Thrombospondin type-1 (TSP1) repeat	Repeat
C [auth A], F [auth C], G	IPR020864	Membrane attack complex component/perforin (MACPF) domain	Domain
C [auth A], F [auth C], G	IPR036383	Thrombospondin type-1 repeat superfamily	Homologous Superfamily
C [auth A], F [auth C], G	IPR009030	Growth factor receptor cysteine-rich domain superfamily	Homologous Superfamily
C [auth A], F [auth C], G	IPR023415	Low-density lipoprotein (LDL) receptor class A, conserved site	Conserved Site

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
C [auth A], F [auth C], G	Pharos: P02748	age-related macular degeneration complement component 9 deficiency meningococcal meningitis dermatomyositis age related macular degeneration 15 opioid abuse primary immunodeficiency disease facial dermatosis Erythema malignant mesothelioma opiate dependence pancreatic ductal adenocarcinoma retinal degeneration exocrine pancreatic carcinoma Finnish type amyloidosis age-related macular degeneration complement component 9 deficiency meningococcal meningitis dermatomyositis age related macular degeneration 15 opioid abuse primary immunodeficiency disease facial dermatosis Erythema malignant mesothelioma opiate dependence pancreatic ductal adenocarcinoma retinal degeneration exocrine pancreatic carcinoma Finnish type amyloidosis wet macular degeneration chronic kidney disease hepatocellular carcinoma macular degeneration psoriasis juvenile dermatomyositis

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.