Annotations: 7T2C

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth D]	SCOP2B Superfamily	Immunoglobulin (Ig) domain-like	8054547	3000071	SCOP2B (2021-05-27)
B [auth E]	SCOP2B Superfamily	Immunoglobulin (Ig) domain-like	8054555	3000071	SCOP2B (2021-05-27)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth D]	PF07686	e7t2cD1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF07686	ECOD (1.6)
A [auth D]	PF09291	e7t2cD2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF09291	ECOD (1.6)
B [auth E]	PF07654	e7t2cE1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF07654	ECOD (1.6)
B [auth E]	PF07686	e7t2cE2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF07686	ECOD (1.6)
C [auth A]	PF07654	e7t2cA2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF07654	ECOD (1.6)
C [auth A]	PF00993	e7t2cA1	A: a+b two layers	X: MHC antigen-recognition domain (From Topology)	H: MHC antigen-recognition domain (From Topology)	T: MHC antigen-recognition domain	F: PF00993	ECOD (1.6)
D [auth B]	PF07654	e7t2cB2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF07654	ECOD (1.6)
D [auth B]	PF00969	e7t2cB1	A: a+b two layers	X: MHC antigen-recognition domain (From Topology)	H: MHC antigen-recognition domain (From Topology)	T: MHC antigen-recognition domain	F: PF00969	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth D]	PF09291	Domain of unknown function (DUF1968) (DUF1968)	Domain of unknown function (DUF1968)	Members of this family are found in mammalian T-cell antigen receptor, and adopt an immunoglobulin-like beta-sandwich fold, with seven strands in two beta-sheets in a Greek-key topology. Their exact function has not, as yet, been determined.	Domain
B [auth E]	PF07654	Immunoglobulin C1-set domain (C1-set)	Immunoglobulin C1-set domain	-	Domain
C [auth A]	PF07654	Immunoglobulin C1-set domain (C1-set)	Immunoglobulin C1-set domain	-	Domain
C [auth A]	PF00993	Class II histocompatibility antigen, alpha domain (MHC_II_alpha)	Class II histocompatibility antigen, alpha domain	-	Domain
D [auth B]	PF00969	Class II histocompatibility antigen, beta domain (MHC_II_beta)	Class II histocompatibility antigen, beta domain	-	Domain
D [auth B]	PF07654	Immunoglobulin C1-set domain (C1-set)	Immunoglobulin C1-set domain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth D]	T cell receptor, B5, alpha chain	-	cellular response to stimulus immune response-regulating cell surface receptor signaling pathway regulation of cellular process response to stimulus signaling positive regulation of biological process cell communication positive regulation of response to stimulus immune response-activating signaling pathway immune response-regulating signaling pathway positive regulation of immune response regulation of immune system process signal transduction positive regulation of immune system process cellular response to stimulus immune response-regulating cell surface receptor signaling pathway regulation of cellular process response to stimulus signaling positive regulation of biological process cell communication positive regulation of response to stimulus immune response-activating signaling pathway immune response-regulating signaling pathway positive regulation of immune response regulation of immune system process signal transduction positive regulation of immune system process regulation of biological process cell surface receptor signaling pathway immune response-activating cell surface receptor signaling pathway immune response biological regulation T cell receptor signaling pathway regulation of response to stimulus immune system process regulation of immune response cellular process antigen receptor-mediated signaling pathway activation of immune response adaptive immune response biological process involved in interspecies interaction between organisms response to other organism response to bacterium response to external stimulus response to external biotic stimulus response to biotic stimulus multicellular organismal process T cell activation cell activation alpha-beta T cell activation lymphocyte activation leukocyte activation	cell periphery plasma membrane membrane cellular anatomical entity protein-containing complex plasma membrane protein complex membrane protein complex alpha-beta T cell receptor complex receptor complex plasma membrane signaling receptor complex T cell receptor complex
B [auth E]	T cell receptor, B5, beta chain	protein binding binding signaling receptor binding immunoglobulin receptor binding antigen binding	cellular response to stimulus immune response-regulating cell surface receptor signaling pathway regulation of cellular process response to stimulus signaling positive regulation of biological process cell communication positive regulation of response to stimulus immune response-activating signaling pathway immune response-regulating signaling pathway positive regulation of immune response regulation of immune system process signal transduction positive regulation of immune system process cellular response to stimulus immune response-regulating cell surface receptor signaling pathway regulation of cellular process response to stimulus signaling positive regulation of biological process cell communication positive regulation of response to stimulus immune response-activating signaling pathway immune response-regulating signaling pathway positive regulation of immune response regulation of immune system process signal transduction positive regulation of immune system process regulation of biological process cell surface receptor signaling pathway immune response-activating cell surface receptor signaling pathway immune response biological regulation T cell receptor signaling pathway regulation of response to stimulus immune system process regulation of immune response cellular process antigen receptor-mediated signaling pathway activation of immune response adaptive immune response 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 immune effector process B cell mediated immunity biological process involved in interspecies interaction between organisms response to other organism defense response antibacterial humoral response defense response to symbiont response to external stimulus antimicrobial humoral response response to biotic stimulus defense response to bacterium defense response to other organism response to stress response to bacterium response to external biotic stimulus multicellular organismal process T cell activation cell activation alpha-beta T cell activation lymphocyte activation leukocyte activation	extracellular region extracellular space cellular anatomical entity blood microparticle membrane protein-containing complex immunoglobulin complex, circulating immunoglobulin complex plasma membrane protein complex plasma membrane membrane protein complex alpha-beta T cell receptor complex receptor complex cell periphery extracellular region extracellular space cellular anatomical entity blood microparticle membrane protein-containing complex immunoglobulin complex, circulating immunoglobulin complex plasma membrane protein complex plasma membrane membrane protein complex alpha-beta T cell receptor complex receptor complex cell periphery plasma membrane signaling receptor complex T cell receptor complex extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle organelle vesicle extracellular membrane-bounded organelle
C [auth A]	HLA class II histocompatibility antigen, DP alpha 1 chain	binding antigen binding peptide antigen binding peptide binding protein-containing complex binding MHC protein complex binding MHC class II protein complex binding molecular transducer activity transmembrane signaling receptor activity signaling receptor activity MHC class II receptor activity immune receptor activity	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 antigen processing and presentation of exogenous peptide antigen via MHC class II 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 antigen processing and presentation of exogenous peptide antigen via MHC class II antigen processing and presentation antigen processing and presentation of peptide or polysaccharide antigen via MHC class II antigen processing and presentation of peptide antigen via MHC class II antigen processing and presentation of exogenous peptide antigen antigen processing and presentation of peptide antigen antigen processing and presentation of exogenous antigen peptide antigen assembly with MHC class II protein complex protein-containing complex organization peptide antigen assembly with MHC protein complex MHC class II protein complex assembly cellular component organization cellular component biogenesis cellular component assembly protein-containing complex assembly cellular process MHC protein complex assembly cellular component organization or biogenesis biological process involved in interspecies interaction between organisms response to other organism defense response response to type II interferon response to cytokine defense response to symbiont response to external stimulus cellular response to type II interferon response to biotic stimulus response to peptide response to chemical defense response to other organism response to stress innate immune response cellular response to cytokine stimulus response to external biotic stimulus multicellular organismal process regulation of cellular process positive regulation of cell population proliferation regulation of leukocyte activation regulation of cell activation positive regulation of cell activation T cell activation lymphocyte proliferation positive regulation of leukocyte activation regulation of leukocyte proliferation cell population proliferation positive regulation of T cell activation positive regulation of lymphocyte proliferation positive regulation of T cell proliferation regulation of cell population proliferation mononuclear cell proliferation regulation of leukocyte cell-cell adhesion positive regulation of leukocyte proliferation positive regulation of multicellular organismal process positive regulation of leukocyte cell-cell adhesion lymphocyte activation leukocyte proliferation leukocyte cell-cell adhesion leukocyte activation positive regulation of cell-cell adhesion positive regulation of lymphocyte activation cell adhesion cell-cell adhesion positive regulation of mononuclear cell proliferation regulation of multicellular organismal process regulation of cell-cell adhesion positive regulation of cellular process T cell proliferation regulation of lymphocyte proliferation positive regulation of cell adhesion regulation of cell adhesion cell activation regulation of T cell activation regulation of T cell proliferation regulation of mononuclear cell proliferation regulation of lymphocyte activation regulation of type II interferon production type II interferon production cellular biosynthetic process positive regulation of cellular metabolic process positive regulation of macromolecule biosynthetic process positive regulation of metabolic process positive regulation of biosynthetic process cytokine production regulation of cytokine production positive regulation of macromolecule metabolic process regulation of biosynthetic process cellular metabolic process regulation of cellular metabolic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process positive regulation of type II interferon production regulation of cellular biosynthetic process regulation of gene expression biosynthetic process positive regulation of gene expression metabolic process regulation of macromolecule biosynthetic process macromolecule metabolic process positive regulation of cytokine production regulation of metabolic process positive regulation of cellular biosynthetic process	membrane-bounded organelle intracellular anatomical structure intracellular vesicle intracellular organelle bounding membrane of organelle cytoplasmic vesicle vesicle membrane clathrin-coated vesicle endocytic vesicle membrane coated vesicle vesicle endocytic vesicle clathrin-coated vesicle membrane clathrin-coated endocytic vesicle membrane membrane-bounded organelle intracellular anatomical structure intracellular vesicle intracellular organelle bounding membrane of organelle cytoplasmic vesicle vesicle membrane clathrin-coated vesicle endocytic vesicle membrane coated vesicle vesicle endocytic vesicle clathrin-coated vesicle membrane clathrin-coated endocytic vesicle membrane membrane cellular anatomical entity intracellular membrane-bounded organelle clathrin-coated endocytic vesicle cytoplasmic vesicle membrane coated vesicle membrane organelle cytoplasm organelle membrane cell surface MHC protein complex cell periphery MHC class II protein complex protein-containing complex plasma membrane protein complex plasma membrane membrane protein complex endosome membrane endosome late endosome membrane endomembrane system late endosome organelle subcompartment lumenal side of endoplasmic reticulum membrane side of membrane lumenal side of membrane endoplasmic reticulum subcompartment nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum endoplasmic reticulum membrane vacuolar membrane lytic vacuole vacuole lytic vacuole membrane lysosomal membrane lysosome Golgi membrane Golgi apparatus Golgi apparatus subcompartment trans-Golgi network membrane trans-Golgi network transport vesicle transport vesicle membrane COPII-coated ER to Golgi transport vesicle ER to Golgi transport vesicle membrane
D [auth B]	HLA class II histocompatibility antigen, DP beta 1 chain	binding antigen binding peptide antigen binding peptide binding protein-containing complex binding MHC protein complex binding MHC class II protein complex binding	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 cellular response to stimulus immune response-regulating cell surface receptor signaling pathway 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 cellular response to stimulus immune response-regulating cell surface receptor signaling pathway regulation of cellular process signaling cell communication immune response-activating signaling pathway immune response-regulating signaling pathway signal transduction cell surface receptor signaling pathway immune response-activating cell surface receptor signaling pathway T cell receptor signaling pathway cellular process antigen receptor-mediated signaling pathway activation of immune response adaptive immune response antigen processing and presentation of exogenous peptide antigen via MHC class II antigen processing and presentation antigen processing and presentation of peptide or polysaccharide antigen via MHC class II antigen processing and presentation of peptide antigen via MHC class II antigen processing and presentation of exogenous peptide antigen antigen processing and presentation of peptide antigen antigen processing and presentation of exogenous antigen peptide antigen assembly with MHC class II protein complex protein-containing complex organization peptide antigen assembly with MHC protein complex MHC class II protein complex assembly cellular component organization cellular component biogenesis cellular component assembly protein-containing complex assembly MHC protein complex assembly cellular component organization or biogenesis multicellular organismal process positive regulation of cell population proliferation regulation of leukocyte activation regulation of cell activation positive regulation of cell activation T cell activation lymphocyte proliferation positive regulation of leukocyte activation regulation of leukocyte proliferation cell population proliferation positive regulation of T cell activation positive regulation of lymphocyte proliferation positive regulation of T cell proliferation regulation of cell population proliferation mononuclear cell proliferation regulation of leukocyte cell-cell adhesion positive regulation of leukocyte proliferation positive regulation of multicellular organismal process positive regulation of leukocyte cell-cell adhesion lymphocyte activation leukocyte proliferation leukocyte cell-cell adhesion leukocyte activation positive regulation of cell-cell adhesion positive regulation of lymphocyte activation cell adhesion cell-cell adhesion positive regulation of mononuclear cell proliferation regulation of multicellular organismal process regulation of cell-cell adhesion positive regulation of cellular process T cell proliferation regulation of lymphocyte proliferation positive regulation of cell adhesion regulation of cell adhesion cell activation regulation of T cell activation regulation of T cell proliferation regulation of mononuclear cell proliferation regulation of lymphocyte activation regulation of type II interferon production type II interferon production cellular biosynthetic process positive regulation of cellular metabolic process positive regulation of macromolecule biosynthetic process positive regulation of metabolic process positive regulation of biosynthetic process cytokine production regulation of cytokine production positive regulation of macromolecule metabolic process regulation of biosynthetic process cellular metabolic process regulation of cellular metabolic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process positive regulation of type II interferon production regulation of cellular biosynthetic process regulation of gene expression biosynthetic process positive regulation of gene expression metabolic process regulation of macromolecule biosynthetic process macromolecule metabolic process positive regulation of cytokine production regulation of metabolic process positive regulation of cellular biosynthetic process	membrane cellular anatomical entity membrane-bounded organelle intracellular anatomical structure intracellular vesicle intracellular organelle bounding membrane of organelle cytoplasmic vesicle vesicle membrane clathrin-coated vesicle endocytic vesicle membrane coated vesicle vesicle endocytic vesicle membrane cellular anatomical entity membrane-bounded organelle intracellular anatomical structure intracellular vesicle intracellular organelle bounding membrane of organelle cytoplasmic vesicle vesicle membrane clathrin-coated vesicle endocytic vesicle membrane coated vesicle vesicle endocytic vesicle clathrin-coated vesicle membrane clathrin-coated endocytic vesicle membrane intracellular membrane-bounded organelle clathrin-coated endocytic vesicle cytoplasmic vesicle membrane coated vesicle membrane organelle cytoplasm organelle membrane cell surface MHC protein complex cell periphery MHC class II protein complex protein-containing complex plasma membrane protein complex plasma membrane membrane protein complex endosome membrane endosome late endosome membrane endomembrane system late endosome organelle subcompartment lumenal side of endoplasmic reticulum membrane side of membrane lumenal side of membrane endoplasmic reticulum subcompartment nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum endoplasmic reticulum membrane vacuolar membrane lytic vacuole vacuole lytic vacuole membrane lysosomal membrane lysosome Golgi membrane Golgi apparatus Golgi apparatus subcompartment trans-Golgi network membrane trans-Golgi network transport vesicle transport vesicle membrane COPII-coated ER to Golgi transport vesicle ER to Golgi transport vesicle membrane
E [auth C]	Pneumolysin-derived peptide	sterol binding binding organic cyclic compound binding alcohol binding steroid binding lipid binding cholesterol binding small molecule binding toxin activity	biological process involved in interspecies interaction between organisms cellular process disruption of cell in another organism disruption of anatomical structure in another organism killing of cells of another organism cell killing	membrane cellular anatomical entity host cell plasma membrane host cellular component host cell part host cell membrane extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth D]	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
A [auth D]	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
A [auth D]	IPR015370	T-cell receptor alpha chain, constant domain	Domain
B [auth E]	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
B [auth E]	IPR003597	Immunoglobulin C1-set	Domain
B [auth E]	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
B [auth E]	IPR007110	Immunoglobulin-like domain	Domain
C [auth A]	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
C [auth A]	IPR003597	Immunoglobulin C1-set	Domain
C [auth A]	IPR011162	MHC classes I/II-like antigen recognition protein	Homologous Superfamily
C [auth A]	IPR003006	Immunoglobulin/major histocompatibility complex, conserved site	Conserved Site
C [auth A]	IPR014745	MHC class II, alpha/beta chain, N-terminal	Homologous Superfamily
C [auth A]	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
C [auth A]	IPR007110	Immunoglobulin-like domain	Domain
C [auth A]	IPR001003	MHC class II, alpha chain, N-terminal	Domain
D [auth B]	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
D [auth B]	IPR003597	Immunoglobulin C1-set	Domain
D [auth B]	IPR011162	MHC classes I/II-like antigen recognition protein	Homologous Superfamily
D [auth B]	IPR003006	Immunoglobulin/major histocompatibility complex, conserved site	Conserved Site
D [auth B]	IPR000353	MHC class II, beta chain, N-terminal	Domain
D [auth B]	IPR014745	MHC class II, alpha/beta chain, N-terminal	Homologous Superfamily
D [auth B]	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
D [auth B]	IPR007110	Immunoglobulin-like domain	Domain
E [auth C]	IPR038700	Thiol-activated cytolysin, C-terminal domain superfamily	Homologous Superfamily
E [auth C]	IPR036359	Thiol-activated cytolysin superfamily	Homologous Superfamily
E [auth C]	IPR035390	Thiol-activated cytolysin C-terminal	Domain
E [auth C]	IPR001869	Thiol-activated cytolysin	Family
E [auth C]	IPR036363	Thiol-activated cytolysin, alpha-beta domain superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A [auth D]	Pharos: P01848	TCR-alpha-beta-positive T-cell deficiency B-cell chronic lymphocytic leukemia invasive ductal breast carcinoma malignant ependymoma Sjogren syndrome cutaneous lupus erythematosus large cell medulloblastoma medulloblastoma interstitial cystitis lung cancer osteosarcoma ulcerative colitis
C [auth A]	Pharos: P20036	irritant dermatitis chronic hepatitis B virus infection hepatocellular carcinoma limb-girdle muscular dystrophy lymphoplasmacytic lymphoma adrenal cortex carcinoma malignant mesothelioma Becker muscular dystrophy non-small cell lung carcinoma chronic obstructive pulmonary disease pancreatic intraductal papillary-mucinous carcinoma pilocytic astrocytoma cystic fibrosis Sjogren syndrome diffuse scleroderma irritant dermatitis chronic hepatitis B virus infection hepatocellular carcinoma limb-girdle muscular dystrophy lymphoplasmacytic lymphoma adrenal cortex carcinoma malignant mesothelioma Becker muscular dystrophy non-small cell lung carcinoma chronic obstructive pulmonary disease pancreatic intraductal papillary-mucinous carcinoma pilocytic astrocytoma cystic fibrosis Sjogren syndrome diffuse scleroderma ulcerative colitis ductal breast carcinoma in situ glioblastoma interstitial cystitis juvenile dermatomyositis lung cancer malignant ependymoma astrocytic tumor malignant pancreatic neoplasm breast carcinoma ovarian cancer pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia congestive heart failure plasma cell myeloma dermatomyositis subependymal giant cell astrocytoma Down syndrome esophageal adenocarcinoma head and neck cancer invasive ductal breast carcinoma large cell medulloblastoma lung carcinoma malignant glioma atypical teratoid rhabdoid tumor nephrosclerosis pancreatic ductal adenocarcinoma Pick disease Crohn disease psoriasis diabetes mellitus systemic sclerosis Duchenne muscular dystrophy exocrine pancreatic carcinoma
D [auth B]	Pharos: P04440	granulomatosis with polyangiitis rheumatoid arthritis angioedema sarcoidosis endometriosis asthma chronic beryllium disease myasthenia gravis cervical cancer celiac disease Drug Eruptions irritant dermatitis chronic hepatitis B virus infection urticaria juvenile idiopathic arthritis granulomatosis with polyangiitis rheumatoid arthritis angioedema sarcoidosis endometriosis asthma chronic beryllium disease myasthenia gravis cervical cancer celiac disease Drug Eruptions irritant dermatitis chronic hepatitis B virus infection urticaria juvenile idiopathic arthritis multiple sclerosis systemic sclerosis Hashimoto thyroiditis inflammatory bowel disease lung adenocarcinoma pulmonary hypertension dermatomyositis schizophrenia ulcerative colitis hepatitis B virus infection lung carcinoma allergic rhinitis breast carcinoma osteoarthritis diabetes mellitus Sjogren syndrome Graves disease IgA glomerulonephritis C1 inhibitor deficiency primary biliary cholangitis Crohn disease diffuse scleroderma