Annotations: 5VKJ

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	I-set_4	e5vkjA1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set_4	ECOD (1.6)
A	V-set_11	e5vkjA2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_11	ECOD (1.6)
A	I-set_8	e5vkjA3	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: I-set_8	ECOD (1.6)

IMGT Antibody Annotation IMGT Database Homepage

Chain	Protein Name	Description	Organism Name	Gene Allele Name(s)	Domain Name(s)	Receptor Type	Receptor Description	Provenance Source
A	CD22	null	Homo sapiens (human)	-	-	IG	Protein	IMGT (202415-0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF13927	Immunoglobulin domain (Ig_3)	Immunoglobulin domain	This family contains immunoglobulin-like domains.	Domain
A	PF08205	CD80-like C2-set immunoglobulin domain (C2-set_2)	CD80-like C2-set immunoglobulin domain	These domains belong to the immunoglobulin superfamily.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	B-cell receptor CD22	protein-containing complex binding binding immunoglobulin binding IgM binding sialic acid binding organic acid binding ion binding anion binding carboxylic acid binding carbohydrate derivative binding small molecule binding protein binding signaling receptor binding protein phosphatase binding protein-containing complex binding binding immunoglobulin binding IgM binding sialic acid binding organic acid binding ion binding anion binding carboxylic acid binding carbohydrate derivative binding small molecule binding protein binding signaling receptor binding protein phosphatase binding phosphatase binding enzyme binding carbohydrate binding CD4 receptor binding	regulation of localization import into cell regulation of biological process regulation of cellular process regulation of cellular component organization regulation of transport transport biological regulation regulation of vesicle-mediated transport establishment of localization vesicle-mediated transport cellular component organization localization cellular process regulation of localization import into cell regulation of biological process regulation of cellular process regulation of cellular component organization regulation of transport transport biological regulation regulation of vesicle-mediated transport establishment of localization vesicle-mediated transport cellular component organization localization cellular process cellular component organization or biogenesis endocytosis regulation of endocytosis regulation of immune effector process immunoglobulin production cellular biosynthetic process negative regulation of biological process negative regulation of cellular metabolic process organic substance metabolic process organic substance biosynthetic process negative regulation of cellular process regulation of immune system process negative regulation of macromolecule metabolic process negative regulation of immunoglobulin production regulation of biosynthetic process production of molecular mediator of immune response cellular metabolic process negative regulation of metabolic process negative regulation of immune effector process regulation of cellular metabolic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process negative regulation of cellular biosynthetic process immune effector process regulation of cellular biosynthetic process regulation of gene expression negative regulation of production of molecular mediator of immune response negative regulation of gene expression biosynthetic process regulation of immunoglobulin production negative regulation of immune system process negative regulation of biosynthetic process immune system process negative regulation of macromolecule biosynthetic process regulation of macromolecule biosynthetic process metabolic process macromolecule metabolic process regulation of production of molecular mediator of immune response regulation of metabolic process multicellular organismal process B cell activation cell activation lymphocyte activation leukocyte activation response to stimulus regulation of response to stimulus immune response regulation of immune response cellular response to stimulus regulation of B cell receptor signaling pathway immune response-regulating cell surface receptor signaling pathway signaling negative regulation of signaling positive regulation of biological process regulation of signal transduction regulation of antigen receptor-mediated signaling pathway negative regulation of antigen receptor-mediated signaling pathway negative regulation of cell communication cell communication negative regulation of B cell receptor signaling pathway positive regulation of response to stimulus immune response-activating signaling pathway immune response-regulating signaling pathway positive regulation of immune response signal transduction positive regulation of immune system process regulation of signaling cell surface receptor signaling pathway immune response-activating cell surface receptor signaling pathway negative regulation of response to stimulus B cell receptor signaling pathway negative regulation of signal transduction regulation of cell communication antigen receptor-mediated signaling pathway activation of immune response cell adhesion negative regulation of intracellular signal transduction intracellular signal transduction regulation of intracellular signal transduction intracellular signaling cassette regulation of calcium-mediated signaling negative regulation of calcium-mediated signaling calcium-mediated signaling regulation of leukocyte activation regulation of cell activation leukocyte proliferation regulation of B cell proliferation lymphocyte proliferation regulation of B cell activation regulation of multicellular organismal process regulation of lymphocyte proliferation regulation of leukocyte proliferation cell population proliferation B cell proliferation regulation of cell population proliferation mononuclear cell proliferation regulation of mononuclear cell proliferation regulation of lymphocyte activation	cell periphery cell surface membrane plasma membrane cellular anatomical entity external side of plasma membrane side of membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space cell periphery cell surface membrane plasma membrane cellular anatomical entity external side of plasma membrane side of membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm early endosome endosome intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle recycling endosome somatodendritic compartment neuronal cell body membrane cell body cell body membrane neuronal cell body

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
A	IPR003599	Immunoglobulin subtype	Domain
A	IPR003598	Immunoglobulin subtype 2	Domain
A	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
A	IPR013162	CD80-like, immunoglobulin C2-set	Domain
A	IPR007110	Immunoglobulin-like domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P20273	B-cell chronic lymphocytic leukemia interstitial cystitis malignant ependymoma nasopharyngeal carcinoma Pre B-cell acute lymphoblastic leukemia Sjogren syndrome cutaneous lupus erythematosus leukemia malignant glioma osteosarcoma progressive supranuclear palsy hairy cell leukemia lymphoma medulloblastoma Pick disease B-cell chronic lymphocytic leukemia interstitial cystitis malignant ependymoma nasopharyngeal carcinoma Pre B-cell acute lymphoblastic leukemia Sjogren syndrome cutaneous lupus erythematosus leukemia malignant glioma osteosarcoma progressive supranuclear palsy hairy cell leukemia lymphoma medulloblastoma Pick disease psoriasis

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.