7S2S | pdb_00007s2s

nanobody bound to Interleukin-2Rbeta

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
Protein Modification Annotation

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D	SCOP2B Superfamily	Fibronectin type III	8055545	3002063	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Fibronectin type III	8055185	3002063	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Fibronectin type III	8055545	3002063	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Fibronectin type III	8055185	3002063	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)
D	APH	e7s2sD1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: APH	ECOD (v294.1)
B		e7s2sB1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F:	ECOD (v294.1)
C [auth A]		e7s2sA1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F:	ECOD (v294.1)
A [auth C]	APH	e7s2sC1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: APH	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C [auth A]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
A [auth C]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
A [auth C], C [auth A]	Heavy Chain	IGHV1	-	interleukin-2 receptor subunit beta	SAbDab (2026-03-27)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B, D	PF25788	Rha78A-like, N-terminal immunoglobulin domain (Ig_Rha78A_N)	Rha78A-like, N-terminal immunoglobulin domain	This domain is found at the N-terminal end of Alpha-L-rhamnosidase from Streptomyces avermitilis (Rha78A) and similar proteins. Rha78A is able to degrade p-nitrophenyl-alpha-L-rhamnopyranoside in vitro. This domain adopts an immunoglobulin-like (Ig-l ...	This domain is found at the N-terminal end of Alpha-L-rhamnosidase from Streptomyces avermitilis (Rha78A) and similar proteins. Rha78A is able to degrade p-nitrophenyl-alpha-L-rhamnopyranoside in vitro. This domain adopts an immunoglobulin-like (Ig-like) fold.	Domain
B, D	PF18707	Interleukin-2 receptor subunit beta N-terminal domain 1 (IL2RB_N1)	Interleukin-2 receptor subunit beta N-terminal domain 1	IL-2Rbeta is a member of the class I cytokine receptor superfamily [1]. It carries a cytokine-binding homology region, which is divided in two fibronectin type-III (FN-III) domains termed D1 and D2. Each domain contains seven beta-strands that form a ...	IL-2Rbeta is a member of the class I cytokine receptor superfamily [1]. It carries a cytokine-binding homology region, which is divided in two fibronectin type-III (FN-III) domains termed D1 and D2. Each domain contains seven beta-strands that form a sandwich of two antiparallel beta-sheets. The N-terminal D1 domain of IL-2Rbeta includes two highly conserved disulfide bridges [2]. This entry describes D1 of the N-terminal region of IL2Rbeta.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B, D	Interleukin-2 receptor subunit beta	protein binding binding growth factor binding cytokine binding interleukin-2 binding molecular transducer activity coreceptor activity signaling receptor activity interleukin-2 receptor activity transmembrane signaling receptor activity cytokine receptor activity immune receptor activity interleukin-15 receptor activity	interleukin-15-mediated signaling pathway cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus cell surface receptor signaling pathway signaling biological regulation response to cytokine cellular response to interleukin-15 cytokine-mediated signaling pathway cell communication response to peptide response to chemical interleukin-15-mediated signaling pathway cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus cell surface receptor signaling pathway signaling biological regulation response to cytokine cellular response to interleukin-15 cytokine-mediated signaling pathway cell communication response to peptide response to chemical cellular response to cytokine stimulus cellular process signal transduction response to interleukin-15 cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein-containing complex assembly cellular component organization or biogenesis adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains lymphocyte mediated immunity immune response immune system process B cell mediated immunity leukocyte mediated immunity immunoglobulin mediated immune response adaptive immune response immune effector process interleukin-2-mediated signaling pathway cellular response to interleukin-2 response to interleukin-2 negative regulation of programmed cell death regulation of apoptotic process negative regulation of biological process regulation of programmed cell death cell death negative regulation of apoptotic process negative regulation of cellular process apoptotic process programmed cell death regulation of localization import into cell positive regulation of cellular component organization regulation of cellular component organization transport positive regulation of biological process vesicle-mediated transport localization positive regulation of endocytosis phagocytosis positive regulation of cellular process regulation of endocytosis regulation of transport regulation of phagocytosis regulation of vesicle-mediated transport establishment of localization positive regulation of phagocytosis positive regulation of transport endocytosis	cell periphery cellular anatomical structure cell surface membrane plasma membrane external side of plasma membrane side of membrane membrane-bounded organelle intracellular anatomical structure endosome intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cell periphery cellular anatomical structure cell surface membrane plasma membrane external side of plasma membrane side of membrane membrane-bounded organelle intracellular anatomical structure endosome intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle organelle cytoplasm vesicle protein-containing complex plasma membrane protein complex plasma membrane signaling receptor complex membrane protein complex interleukin-2 receptor complex receptor complex cytosol
A [auth C], C [auth A]	IL2Rb-binding nanobody	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B, D	IPR003961	Fibronectin type III	Domain
B, D	IPR003531	Short hematopoietin receptor, family 1, conserved site	Conserved Site
B, D	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
B, D	IPR040951	Interleukin-2 receptor subunit beta, N-terminal	Domain
B, D	IPR036116	Fibronectin type III superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
B, D	Pharos: P14784	rheumatoid arthritis pneumonia juvenile idiopathic arthritis allergic disease oligoarticular juvenile idiopathic arthritis Liver Cirrhosis, Experimental acute myeloid leukemia tuberculosis celiac disease malignant mesothelioma neuroblastoma pneumonitis relapsing-remitting multiple sclerosis rheumatoid factor-negative juvenile idiopathic arthritis vitiligo rheumatoid arthritis pneumonia juvenile idiopathic arthritis allergic disease oligoarticular juvenile idiopathic arthritis Liver Cirrhosis, Experimental acute myeloid leukemia tuberculosis celiac disease malignant mesothelioma neuroblastoma pneumonitis relapsing-remitting multiple sclerosis rheumatoid factor-negative juvenile idiopathic arthritis vitiligo cutaneous lupus erythematosus Graves disease hypothyroidism large cell medulloblastoma lung cancer primary cutaneous T-cell lymphoma Sjogren syndrome bipolar disorder digestive system neuroendocrine neoplasm Hashimoto thyroiditis interstitial cystitis lung carcinoma

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
B, D	MLY	Parent Component: LYS RESID: AA0075 PSI-MOD : N6,N6-dimethyl-L-lysine MOD:00084
A [auth C], C [auth A]	MLY	Parent Component: LYS RESID: AA0075 , AA0075 PSI-MOD : N6,N6-dimethyl-L-lysine MOD:00084 , N6,N6-dimethyl-L-lysine MOD:00084

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.