Annotations: 7LEY

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Arginase/deacetylase-like	8036933	3000260	SCOP2B (2022-06-29)
F [auth B]	SCOP2B Superfamily	Arginase/deacetylase-like	8036933	3000260	SCOP2B (2022-06-29)
G [auth C]	SCOP2B Superfamily	Arginase/deacetylase-like	8036933	3000260	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)
A	Arginase	e7leyA1	A: a/b three-layered sandwiches	X: HAD domain-like	H: HAD domain-related	T: Arginase/deacetylase	F: Arginase	ECOD (1.6)
F [auth B]	Arginase	e7leyB1	A: a/b three-layered sandwiches	X: HAD domain-like	H: HAD domain-related	T: Arginase/deacetylase	F: Arginase	ECOD (1.6)
G [auth C]	Arginase	e7leyC1	A: a/b three-layered sandwiches	X: HAD domain-like	H: HAD domain-related	T: Arginase/deacetylase	F: Arginase	ECOD (1.6)
B [auth D]	C1-set_1	e7leyD2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_1	ECOD (1.6)
B [auth D]	V-set_12	e7leyD1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_12	ECOD (1.6)
H [auth G]	C1-set_1	e7leyG2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_1	ECOD (1.6)
H [auth G]	V-set_12	e7leyG1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_12	ECOD (1.6)
I [auth H]	C1-set_1	e7leyH2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_1	ECOD (1.6)
I [auth H]	V-set_12	e7leyH1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_12	ECOD (1.6)
C [auth E]	C1-set_4	e7leyE2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_4	ECOD (1.6)
C [auth E]	V-set	e7leyE1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set	ECOD (1.6)
D [auth F]	C1-set_4	e7leyF2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_4	ECOD (1.6)
D [auth F]	V-set	e7leyF1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set	ECOD (1.6)
E [auth I]	C1-set_4	e7leyI2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_4	ECOD (1.6)
E [auth I]	V-set	e7leyI1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B [auth D]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
H [auth G]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
I [auth H]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
C [auth E]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
D [auth F]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
E [auth I]	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
B [auth D], H [auth G], I [auth H]	Heavy Chain	IGHV3	-	arginase-1	SAbDab (2025-12-19)
C [auth E], D [auth F], E [auth I]	Light Chain	IGKV1	Kappa	arginase-1	SAbDab (2025-12-19)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, F [auth B], G [auth C]	PF00491	Arginase family (Arginase)	Arginase family		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, F [auth B], G [auth C]	Arginase-1	hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in linear amidines hydrolase activity catalytic activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds arginase activity cation binding manganese ion binding transition metal ion binding ion binding binding metal ion binding small molecule binding	negative regulation of lymphocyte proliferation multicellular organismal process regulation of cellular process regulation of leukocyte activation negative regulation of biological process regulation of cell activation negative regulation of T cell proliferation negative regulation of cell adhesion negative regulation of leukocyte proliferation T cell activation lymphocyte proliferation regulation of immune system process regulation of leukocyte proliferation regulation of biological process negative regulation of lymphocyte proliferation multicellular organismal process regulation of cellular process regulation of leukocyte activation negative regulation of biological process regulation of cell activation negative regulation of T cell proliferation negative regulation of cell adhesion negative regulation of leukocyte proliferation T cell activation lymphocyte proliferation regulation of immune system process regulation of leukocyte proliferation regulation of biological process cell population proliferation negative regulation of T cell activation negative regulation of leukocyte cell-cell adhesion regulation of cell population proliferation mononuclear cell proliferation negative regulation of cell-cell adhesion regulation of leukocyte cell-cell adhesion negative regulation of multicellular organismal process negative regulation of leukocyte activation regulation of activated T cell proliferation lymphocyte activation negative regulation of lymphocyte activation leukocyte proliferation leukocyte cell-cell adhesion leukocyte activation activated T cell proliferation negative regulation of mononuclear cell proliferation cell adhesion cell-cell adhesion negative regulation of cellular process regulation of multicellular organismal process regulation of cell-cell adhesion T cell proliferation regulation of lymphocyte proliferation negative regulation of cell population proliferation regulation of cell adhesion biological regulation cell activation regulation of T cell activation negative regulation of cell activation regulation of T cell proliferation negative regulation of activated T cell proliferation negative regulation of immune system process immune system process regulation of mononuclear cell proliferation cellular process regulation of lymphocyte activation response to stimulus immune response adaptive immune response neutrophil-mediated killing of symbiont cell regulation of immune effector process regulation of myeloid leukocyte mediated immunity positive regulation of response to biotic stimulus positive regulation of leukocyte mediated immunity neutrophil-mediated killing of fungus regulation of neutrophil mediated killing of fungus disruption of cell in another organism regulation of killing of cells of another organism regulation of programmed cell death response to biotic stimulus myeloid leukocyte mediated immunity positive regulation of neutrophil mediated cytotoxicity positive regulation of leukocyte mediated cytotoxicity positive regulation of neutrophil mediated killing of symbiont cell leukocyte mediated immunity biological process involved in interaction with symbiont positive regulation of immune system process killing of cells of another organism positive regulation of programmed cell death response to other organism response to external stimulus leukocyte mediated cytotoxicity cell death immune effector process regulation of leukocyte mediated immunity regulation of defense response to fungus regulation of response to stimulus defense response to other organism positive regulation of myeloid leukocyte mediated immunity positive regulation of defense response regulation of cell killing positive regulation of cell killing disruption of anatomical structure in another organism regulation of defense response regulation of response to biotic stimulus biological process involved in interspecies interaction between organisms regulation of response to external stimulus positive regulation of killing of cells of another organism positive regulation of biological process biological process involved in symbiotic interaction positive regulation of response to stimulus neutrophil mediated immunity positive regulation of response to external stimulus response to stress regulation of response to stress positive regulation of neutrophil mediated killing of fungus positive regulation of immune effector process response to external biotic stimulus modulation of process of another organism positive regulation of cellular process regulation of biological process involved in symbiotic interaction neutrophil mediated cytotoxicity defense response regulation of neutrophil mediated cytotoxicity regulation of leukocyte mediated cytotoxicity defense response to symbiont defense response to fungus killing by host of symbiont cells regulation of neutrophil mediated killing of symbiont cell response to fungus programmed cell death cell killing innate immune response response to nematode catabolic process oxoacid metabolic process carboxylic acid metabolic process L-amino acid catabolic process amino acid metabolic process primary metabolic process organic acid metabolic process organic acid catabolic process alpha-amino acid metabolic process L-amino acid metabolic process glutamine family amino acid metabolic process proteinogenic amino acid metabolic process arginine metabolic process L-arginine catabolic process alpha-amino acid catabolic process proteinogenic amino acid catabolic process carboxylic acid catabolic process metabolic process small molecule metabolic process small molecule catabolic process amino acid catabolic process defense response to protozoan response to protozoan cellular response to stimulus response to type II interferon response to cytokine regulation of signal transduction regulation of type II interferon-mediated signaling pathway cellular response to type II interferon cell communication negative regulation of response to type II interferon interferon-mediated signaling pathway cellular response to cytokine stimulus signal transduction regulation of innate immune response negative regulation of immune response type II interferon-mediated signaling pathway regulation of response to cytokine stimulus negative regulation of response to cytokine stimulus response to chemical negative regulation of response to external stimulus negative regulation of defense response regulation of immune response regulation of response to type II interferon negative regulation of response to biotic stimulus negative regulation of signaling signaling negative regulation of cell communication cytokine-mediated signaling pathway negative regulation of type II interferon-mediated signaling pathway regulation of signaling cell surface receptor signaling pathway negative regulation of response to stimulus regulation of cytokine-mediated signaling pathway negative regulation of signal transduction response to peptide negative regulation of cytokine-mediated signaling pathway regulation of cell communication negative regulation of innate immune response adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains lymphocyte mediated immunity T cell mediated immunity T-helper 2 cell cytokine production negative regulation of lymphocyte mediated immunity T cell cytokine production type 2 immune response regulation of T-helper 2 cell cytokine production cytokine production regulation of type 2 immune response negative regulation of T-helper 2 cell cytokine production regulation of T cell mediated immunity negative regulation of cytokine production involved in immune response regulation of cytokine production involved in immune response regulation of adaptive immune response negative regulation of metabolic process negative regulation of immune effector process negative regulation of adaptive immune response negative regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains regulation of gene expression negative regulation of type 2 immune response negative regulation of production of molecular mediator of immune response negative regulation of gene expression biosynthetic process negative regulation of macromolecule biosynthetic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of production of molecular mediator of immune response negative regulation of T cell mediated immunity regulation of metabolic process negative regulation of T cell cytokine production regulation of T cell cytokine production CD4-positive, alpha-beta T cell cytokine production regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains regulation of cytokine production cytokine production involved in immune response negative regulation of macromolecule metabolic process production of molecular mediator of immune response regulation of biosynthetic process negative regulation of cytokine production regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of lymphocyte mediated immunity negative regulation of biosynthetic process negative regulation of leukocyte mediated immunity nitrogen cycle metabolic process urea cycle amide biosynthetic process amide metabolic process urea metabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle lytic vacuole intracellular vesicle membrane-enclosed lumen cytoplasmic vesicle lumen vacuolar lumen endomembrane system intracellular organelle lumen intracellular organelle cytoplasmic vesicle cellular anatomical structure intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle lytic vacuole intracellular vesicle membrane-enclosed lumen cytoplasmic vesicle lumen vacuolar lumen endomembrane system intracellular organelle lumen intracellular organelle cytoplasmic vesicle vesicle lysosome vesicle lumen azurophil granule vacuole intracellular membrane-bounded organelle secretory granule lumen azurophil granule lumen organelle lumen organelle secretory granule primary lysosome secretory vesicle extracellular region specific granule lumen specific granule extracellular space nucleus
B [auth D], H [auth G], I [auth H]	mAb5 heavy chain	-	-	-
C [auth E], D [auth F], E [auth I]	mAb5 light chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, F [auth B], G [auth C]	IPR014033	Arginase	Family
A, F [auth B], G [auth C]	IPR020855	Ureohydrolase, manganese-binding site	Binding Site
A, F [auth B], G [auth C]	IPR023696	Ureohydrolase domain superfamily	Homologous Superfamily
A, F [auth B], G [auth C]	IPR006035	Ureohydrolase	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, F [auth B], G [auth C]	Pharos: P05089	hyperargininemia leishmaniasis silicosis myopathy asbestosis lung adenocarcinoma asthma disease of pilosebaceous unit inborn errors of metabolism muscle tissue disease osteosarcoma Adenocarcinoma of Lung cancer cholestasis immune system disease hyperargininemia leishmaniasis silicosis myopathy asbestosis lung adenocarcinoma asthma disease of pilosebaceous unit inborn errors of metabolism muscle tissue disease osteosarcoma Adenocarcinoma of Lung cancer cholestasis immune system disease inherited amino acid metabolic disorder muscular disease periodontitis primitive neuroectodermal tumor drug-induced liver injury intellectual disability MALT lymphoma precancerous condition psoriasis atopic eczema urea cycle disorder

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.