2IAD | pdb_00002iad

CLASS II MHC I-AD IN COMPLEX WITH AN INFLUENZA HEMAGGLUTININ PEPTIDE 126-138

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2iada1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	Class II MHC alpha chain, C-terminal domain	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
A	d2iada2	Alpha and beta proteins (a+b)	MHC antigen-recognition domain	MHC antigen-recognition domain	MHC antigen-recognition domain	Class II MHC alpha chain, N-terminal domain	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
A	d2iada3	Artifacts	Tags	Tags	Tags	C-terminal Tags	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
B	d2iadb1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	Class II MHC beta chain, C-terminal domain	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
B	d2iadb2	Alpha and beta proteins (a+b)	MHC antigen-recognition domain	MHC antigen-recognition domain	MHC antigen-recognition domain	Class II MHC beta chain, N-terminal domain	house 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	Immunoglobulin (Ig) domain-like	8054689	3000071	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	MHC antigen-recognition domain	8034745	3000521	SCOP2B (2022-06-29)
B	SCOP2 Family	MHC antigen-recognition domain	8022364	4001031	SCOP2 (2022-06-29)
B	SCOP2 Family	C1 set domains-like	8054726	4000202	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	MHC antigen-recognition domain	8034744	3000521	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Immunoglobulin (Ig) domain-like	8054727	3000071	SCOP2 (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	C1-set_2	e2iadA1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_2	ECOD (1.6)
B	C1-set_2	e2iadB1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_2	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.10.320.10	Alpha Beta	Roll	Class II Histocompatibility Antigen, M Beta Chain	Chain B, domain 1	CATH (4.3.0)
A	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
B	3.10.320.10	Alpha Beta	Roll	Class II Histocompatibility Antigen, M Beta Chain	Chain B, domain 1	CATH (4.3.0)
B	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)

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	pMHC114	II-ALPHA	Mus musculus (house mouse)	MH2-AAd	G-DOMAIN G-ALPHA, C-LIKE-DOMAIN C-LIKE	MH	MH2-ALPHA_PEPTIDE-BETA	IMGT (202537-0)
B	pMHC114	PEPTIDE-II-BETA	Mus musculus (house mouse)	H2-ABd	G-DOMAIN G-BETA, C-LIKE-DOMAIN C-LIKE	MH	MH2-ALPHA_PEPTIDE-BETA	IMGT (202537-0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF07654	Immunoglobulin C1-set domain (C1-set)	Immunoglobulin C1-set domain		Domain
A	PF00993	Class II histocompatibility antigen, alpha domain (MHC_II_alpha)	Class II histocompatibility antigen, alpha domain		Domain
B	PF00969	Class II histocompatibility antigen, beta domain (MHC_II_beta)	Class II histocompatibility antigen, beta domain		Domain
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	MHC CLASS II I-AD	binding antigen binding peptide antigen binding peptide binding	response to stimulus immune response immune system process adaptive immune response antigen processing and presentation antigen processing and presentation of exogenous peptide antigen via MHC class II 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 multicellular organismal process regulation of leukocyte differentiation regulation of cellular process response to stimulus immune response immune system process adaptive immune response antigen processing and presentation antigen processing and presentation of exogenous peptide antigen via MHC class II 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 multicellular organismal process regulation of leukocyte differentiation regulation of cellular process regulation of leukocyte activation regulation of cell activation mononuclear cell differentiation regulation of cell differentiation lymphocyte differentiation positive regulation of T cell differentiation regulation of cell development positive regulation of developmental process multicellular organism development positive regulation of cell activation T cell activation cell differentiation anatomical structure development positive regulation of leukocyte activation T cell differentiation regulation of immune system process positive regulation of immune system process developmental process regulation of biological process positive regulation of T cell activation positive regulation of cell development regulation of leukocyte cell-cell adhesion positive regulation of multicellular organismal process leukocyte differentiation cellular developmental process regulation of developmental process positive regulation of biological process cell development positive regulation of leukocyte cell-cell adhesion lymphocyte activation leukocyte cell-cell adhesion leukocyte activation positive regulation of cell-cell adhesion regulation of T cell differentiation positive regulation of lymphocyte activation cell adhesion cell-cell adhesion positive regulation of hemopoiesis positive regulation of cell differentiation regulation of multicellular organismal process regulation of cell-cell adhesion positive regulation of cellular process regulation of lymphocyte differentiation regulation of multicellular organismal development hemopoiesis positive regulation of cell adhesion regulation of cell adhesion cell activation biological regulation regulation of T cell activation regulation of hemopoiesis cellular process positive regulation of leukocyte differentiation positive regulation of lymphocyte differentiation regulation of lymphocyte activation	cell periphery cellular anatomical structure cell surface membrane plasma membrane external side of plasma membrane side of membrane MHC protein complex MHC class II protein complex protein-containing complex plasma membrane protein complex membrane protein complex membrane-bounded organelle intracellular organelle cell periphery cellular anatomical structure cell surface membrane plasma membrane external side of plasma membrane side of membrane MHC protein complex MHC class II protein complex protein-containing complex plasma membrane protein complex membrane protein complex membrane-bounded organelle intracellular organelle intracellular anatomical structure organelle lytic vacuole vacuole cytoplasm intracellular membrane-bounded organelle lysosome
B	MHC CLASS II I-AD	binding antigen binding peptide antigen binding peptide binding	response to stimulus immune response immune system process adaptive immune response antigen processing and presentation antigen processing and presentation of exogenous peptide antigen via MHC class II 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	membrane-bounded organelle intracellular anatomical structure early endosome endosome intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cellular anatomical structure cytoplasmic vesicle organelle cytoplasm vesicle cell periphery membrane-bounded organelle intracellular anatomical structure early endosome endosome intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cellular anatomical structure cytoplasmic vesicle organelle cytoplasm vesicle cell periphery cell surface membrane plasma membrane external side of plasma membrane side of membrane Golgi apparatus MHC protein complex MHC class II protein complex protein-containing complex plasma membrane protein complex membrane protein complex late endosome multivesicular body

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
A	IPR050160	Major Histocompatibility Complex/Immunoglobulin	Family
A	IPR014745	MHC class II, alpha/beta chain, N-terminal	Homologous Superfamily
A	IPR003597	Immunoglobulin C1-set	Domain
A	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
A	IPR011162	MHC classes I/II-like antigen recognition protein	Homologous Superfamily
A	IPR007110	Immunoglobulin-like domain	Domain
A	IPR001003	MHC class II, alpha chain, N-terminal	Domain
A	IPR003006	Immunoglobulin/major histocompatibility complex, conserved site	Conserved Site
B	IPR000353	MHC class II, beta chain, N-terminal	Domain
B	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
B	IPR050160	Major Histocompatibility Complex/Immunoglobulin	Family
B	IPR014745	MHC class II, alpha/beta chain, N-terminal	Homologous Superfamily
B	IPR003597	Immunoglobulin C1-set	Domain
B	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
B	IPR011162	MHC classes I/II-like antigen recognition protein	Homologous Superfamily
B	IPR007110	Immunoglobulin-like domain	Domain
B	IPR003006	Immunoglobulin/major histocompatibility complex, conserved site	Conserved Site

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.