Annotations: 9JO7

CRP-HCAb4 complex

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)
I [auth H]	SCOP2B Superfamily	Concanavalin A-like lectins/glucanases	8041434	3000120	SCOP2B (2022-06-29)
G [auth F]	SCOP2B Superfamily	Concanavalin A-like lectins/glucanases	8041434	3000120	SCOP2B (2022-06-29)
E [auth D]	SCOP2B Superfamily	Concanavalin A-like lectins/glucanases	8041434	3000120	SCOP2B (2022-06-29)
C [auth B]	SCOP2B Superfamily	Concanavalin A-like lectins/glucanases	8041434	3000120	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Concanavalin A-like lectins/glucanases	8041434	3000120	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)
J [auth I]		e9jo7I1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F:	ECOD (v295.2)
H [auth G]		e9jo7G1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F:	ECOD (v295.2)
F [auth E]		e9jo7E1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F:	ECOD (v295.2)
D [auth C]		e9jo7C1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F:	ECOD (v295.2)
B [auth J]		e9jo7J1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F:	ECOD (v295.2)
I [auth H]	RVT_1	e9jo7H1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: RVT_1	ECOD (v295.2)
G [auth F]	RVT_1	e9jo7F1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: RVT_1	ECOD (v295.2)
E [auth D]	RVT_1	e9jo7D1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: RVT_1	ECOD (v295.2)
C [auth B]	RVT_1	e9jo7B1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: RVT_1	ECOD (v295.2)
A	RVT_1	e9jo7A1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: RVT_1	ECOD (v295.2)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth J], D [auth C], F [auth E], H [auth G], J [auth I]	Heavy Chain	IGHV1	-	c-reactive protein	SAbDab (2026-09-25)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, C [auth B], E [auth D], G [auth F], I [auth H]	PF00354	Pentaxin family (Pentaxin)	Pentaxin family	Pentaxins are also known as pentraxins.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B [auth J], D [auth C], F [auth E], H [auth G], J [auth I]	CRP specific recognition heavy chain antibodie 4 (HCAb4)	-	-	-
A, C [auth B], E [auth D], G [auth F], I [auth H]	C-reactive protein	cation binding ion binding binding calcium ion binding metal ion binding small molecule binding lipoprotein particle binding protein-containing complex binding protein-lipid complex binding low-density lipoprotein particle binding complement component C1q complex binding opsonin binding protein binding complement binding cation binding ion binding binding calcium ion binding metal ion binding small molecule binding lipoprotein particle binding protein-containing complex binding protein-lipid complex binding low-density lipoprotein particle binding complement component C1q complex binding opsonin binding protein binding complement binding choline binding low-density lipoprotein particle receptor binding signaling receptor binding lipoprotein particle receptor binding identical protein binding	import into cell transport establishment of localization immune effector process phagocytosis, recognition opsonization localization immune system process phagocytosis cell recognition cellular process endocytosis developmental process regulation of biological process import into cell transport establishment of localization immune effector process phagocytosis, recognition opsonization localization immune system process phagocytosis cell recognition cellular process endocytosis developmental process regulation of biological process regulation of cellular process regulation of developmental process cellular developmental process negative regulation of developmental process macrophage derived foam cell differentiation biological regulation negative regulation of biological process regulation of cell differentiation negative regulation of macrophage derived foam cell differentiation foam cell differentiation cell differentiation negative regulation of cellular process regulation of macrophage derived foam cell differentiation negative regulation of cell differentiation reactive oxygen species metabolic process positive regulation of biological process regulation of superoxide metabolic process positive regulation of reactive oxygen species metabolic process superoxide metabolic process positive regulation of metabolic process superoxide anion generation metabolic process positive regulation of superoxide anion generation regulation of superoxide anion generation regulation of metabolic process regulation of reactive oxygen species metabolic process positive regulation of cellular process regulation of leukocyte proliferation negative regulation of cell population proliferation cell population proliferation leukocyte proliferation negative regulation of mononuclear cell proliferation negative regulation of leukocyte proliferation regulation of cell population proliferation mononuclear cell proliferation regulation of mononuclear cell proliferation regulation of biosynthetic process multicellular organismal process interleukin-8 production regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of gene expression biosynthetic process cytokine production regulation of cytokine production regulation of macromolecule biosynthetic process regulation of multicellular organismal process macromolecule metabolic process regulation of interleukin-8 production acute-phase response response to stimulus defense response response to stress inflammatory response acute inflammatory response positive regulation of macromolecule biosynthetic process positive regulation of gene expression positive regulation of biosynthetic process positive regulation of macromolecule metabolic process regulation of tube diameter system process regulation of tube size circulatory system process vascular process in circulatory system blood vessel diameter maintenance regulation of biological quality vasoconstriction blood circulation regulation of anatomical structure size 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 defense response to other organism innate immune response response to external biotic stimulus regulation of localization lipid storage lipid localization negative regulation of lipid localization regulation of lipid storage regulation of lipid localization negative regulation of lipid storage macromolecule localization nutrient storage defense response to Gram-positive bacterium defense response to bacterium response to bacterium	cellular anatomical structure extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, C [auth B], E [auth D], G [auth F], I [auth H]	IPR030476	Pentaxin, conserved site	Conserved Site
A, C [auth B], E [auth D], G [auth F], I [auth H]	IPR051005	Pentraxin domain-containing protein	Family
A, C [auth B], E [auth D], G [auth F], I [auth H]	IPR013320	Concanavalin A-like lectin/glucanase domain superfamily	Homologous Superfamily
A, C [auth B], E [auth D], G [auth F], I [auth H]	IPR001759	Pentraxin domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, C [auth B], E [auth D], G [auth F], I [auth H]	: P02741	coronary artery disease Crohn disease malaria rheumatoid arthritis periodontitis atherosclerosis heart disease metabolic syndrome X hypertensive disorder obesity disorder leishmaniasis diabetic retinopathy psoriasis cardiovascular disease secondary hyperparathyroidism coronary artery disease Crohn disease malaria rheumatoid arthritis periodontitis atherosclerosis heart disease metabolic syndrome X hypertensive disorder obesity disorder leishmaniasis diabetic retinopathy psoriasis cardiovascular disease secondary hyperparathyroidism myocarditis hypertriglyceridemia Infection acute coronary syndrome thrombotic disease metabolic disease substance withdrawal syndrome systemic lupus erythematosus congestive heart failure infectious meningitis interstitial nephritis chronic kidney disease visceral leishmaniasis asthma pustulosis palmaris et plantaris exanthem major depressive disorder autoimmune disease rheumatic disorder heart failure meningitis hepatocellular carcinoma mucocutaneous lymph node syndrome cerebrovascular disorder syphilis obstructive sleep apnea syndrome chronic obstructive pulmonary disease thrombocytosis disease pancreatic ductal adenocarcinoma inflammatory bowel disease anemia type 1 diabetes mellitus interstitial lung disease urinary tract infection kidney disease appendicitis peripheral neuropathy arthritic joint disease pneumonia diarrheal disease lung benign neoplasm pulmonary embolism drug-induced liver injury pyuria hyperglycemia cholecystitis ileocolitis osteomyelitis thrombophilia adult acute respiratory distress syndrome pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia COVID-19 influenza anxiety disorder pericardial effusion Crohn's colitis type 2 diabetes mellitus vasculitis peripheral vascular disease prediabetes syndrome arthropathy epidural abscess lymphopenia cancer schizophrenia hepatitis B virus infection myocardial ischemia cellulitis synovitis thrombocytopenia inborn carbohydrate metabolic disorder allergic disease pancreatitis COVID-19–associated multisystem inflammatory syndrome in children tuberculosis inherited lipid metabolism disorder pericarditis intestinal obstruction aortic disease peripheral arterial disease peritonitis liver disease arteriosclerosis disorder lupus erythematosus