Annotations: 7YZJ

FAB IN COMPLEX WITH ANTIGENIC PEPTIDE OF INTERLEUKIN-2

External Resource: Annotation

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

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth L]	KRAB	e7yzjL1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: KRAB	ECOD (v295)
B [auth H]	KRAB	e7yzjH1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: KRAB	ECOD (v295)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth L]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
B [auth H]	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 L]	Light Chain	IGKV1	Kappa	antigenic peptide	SAbDab (2026-07-17)
B [auth H]	Heavy Chain	IGHV3	-	antigenic peptide	SAbDab (2026-07-17)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth L]	Light chain of FAB fragment	-	-	-
B [auth H]	Heavy chain of FAB fragment	-	-	-
C [auth E]	Antigenic peptide	glycosphingolipid binding binding sphingolipid binding lipid binding glycolipid binding carbohydrate derivative binding molecular function activator activity molecular function regulator activity signaling receptor regulator activity growth factor activity receptor ligand activity signaling receptor activator activity enzyme regulator activity kinase activator activity glycosphingolipid binding binding sphingolipid binding lipid binding glycolipid binding carbohydrate derivative binding molecular function activator activity molecular function regulator activity signaling receptor regulator activity growth factor activity receptor ligand activity signaling receptor activator activity enzyme regulator activity kinase activator activity enzyme activator activity kinase regulator activity carbohydrate binding protein binding kappa-type opioid receptor binding signaling receptor binding G protein-coupled receptor binding opioid receptor binding cytokine activity cytokine receptor binding growth factor receptor binding interleukin-2 receptor binding	regulation of growth regulation of biological process regulation of cellular process regulation of cellular component organization biological regulation growth positive regulation of biological process positive regulation of cell growth regulation of cell growth cell growth cellular component organization positive regulation of growth cellular process cellular component organization or biogenesis regulation of growth regulation of biological process regulation of cellular process regulation of cellular component organization biological regulation growth positive regulation of biological process positive regulation of cell growth regulation of cell growth cell growth cellular component organization positive regulation of growth cellular process cellular component organization or biogenesis positive regulation of cellular process positive regulation of cytosolic calcium ion concentration regulation of biological quality multicellular organismal process regulation of leukocyte differentiation regulation of developmental process cellular developmental process cell development regulation of cell differentiation regulation of cell development positive regulation of developmental process multicellular organism development positive regulation of hemopoiesis positive regulation of cell differentiation cell differentiation anatomical structure development regulation of immune system process regulation of multicellular organismal process positive regulation of immune system process developmental process regulation of multicellular organismal development hemopoiesis positive regulation of cell development immune system process regulation of hemopoiesis positive regulation of multicellular organismal process positive regulation of leukocyte differentiation leukocyte differentiation response to stimulus immune response adaptive immune response regulation of defense response regulation of response to external stimulus defense response response to external stimulus regulation of inflammatory response positive regulation of response to stimulus positive regulation of response to external stimulus positive regulation of inflammatory response regulation of response to stimulus regulation of response to stress response to stress positive regulation of defense response inflammatory response cellular response to stimulus interleukin-2-mediated signaling pathway cell surface receptor signaling pathway cellular response to interleukin-2 signaling response to cytokine cytokine-mediated signaling pathway cell communication response to peptide response to interleukin-2 response to chemical cellular response to cytokine stimulus signal transduction 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 cell surface receptor signaling pathway via STAT regulation of leukocyte activation regulation of cell activation mononuclear cell differentiation lymphocyte differentiation positive regulation of T cell differentiation positive regulation of cell activation T cell activation positive regulation of leukocyte activation T cell differentiation positive regulation of T cell activation positive regulation of regulatory T cell differentiation regulation of leukocyte cell-cell adhesion 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 regulation of cell-cell adhesion regulation of lymphocyte differentiation positive regulation of cell adhesion regulation of cell adhesion regulation of regulatory T cell differentiation cell activation regulation of T cell activation regulatory T cell differentiation positive regulation of lymphocyte differentiation regulation of lymphocyte activation cell-cell signaling regulation of immune effector process mature B cell differentiation positive regulation of B cell differentiation B cell activation involved in immune response cell activation involved in immune response regulation of plasma cell differentiation positive regulation of immune response immune effector process positive regulation of plasma cell differentiation regulation of immune response plasma cell differentiation regulation of B cell differentiation B cell differentiation leukocyte activation involved in immune response regulation of B cell activation positive regulation of immune effector process lymphocyte activation involved in immune response mature B cell differentiation involved in immune response B cell activation positive regulation of B cell activation cell projection organization positive regulation of dendritic spine development regulation of dendritic spine development neuron projection development neurogenesis neuron differentiation dendrite development system development dendritic spine development plasma membrane bounded cell projection organization nervous system development generation of neurons neuron development animal gross anatomical part developmental process response to alcohol response to oxygen-containing compound response to ethanol cell population proliferation positive regulation of cell population proliferation regulation of cell population proliferation positive regulation of tissue remodeling tissue remodeling regulation of tissue remodeling cell surface receptor signaling pathway via JAK-STAT lymphocyte proliferation regulation of leukocyte proliferation positive regulation of lymphocyte proliferation positive regulation of T cell proliferation positive regulation of activated T cell proliferation mononuclear cell proliferation positive regulation of leukocyte proliferation regulation of activated T cell proliferation leukocyte proliferation activated T cell proliferation positive regulation of mononuclear cell proliferation T cell proliferation regulation of lymphocyte proliferation regulation of T cell proliferation regulation of mononuclear cell proliferation response to tacrolimus response to nitrogen compound natural killer cell activation immunoglobulin production positive regulation of macromolecule biosynthetic process positive regulation of metabolic process positive regulation of biosynthetic process positive regulation of macromolecule metabolic process positive regulation of immunoglobulin production regulation of biosynthetic process production of molecular mediator of immune response regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of gene expression biosynthetic process regulation of immunoglobulin production positive regulation of gene expression positive regulation of production of molecular mediator of immune response regulation of macromolecule biosynthetic process metabolic process regulation of production of molecular mediator of immune response macromolecule metabolic process regulation of metabolic process phospholipase C-activating G protein-coupled receptor signaling pathway G protein-coupled receptor signaling pathway cytokine production regulation of cytokine production interleukin-17 production regulation of interleukin-17 production positive regulation of interleukin-17 production positive regulation of cytokine production positive regulation of B cell proliferation regulation of B cell proliferation B cell proliferation adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains regulation of alpha-beta T cell activation negative regulation of cell adhesion negative regulation of T cell differentiation regulation of T-helper cell differentiation alpha-beta T cell activation T-helper cell differentiation negative regulation of leukocyte differentiation negative regulation of immune effector process negative regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains negative regulation of T cell activation negative regulation of leukocyte cell-cell adhesion negative regulation of cell-cell adhesion negative regulation of multicellular organismal process T-helper 17 cell differentiation negative regulation of T-helper 17 cell differentiation CD4-positive, alpha-beta T cell differentiation alpha-beta T cell differentiation T cell activation involved in immune response negative regulation of cell differentiation regulation of T-helper 17 cell differentiation negative regulation of developmental process negative regulation of T-helper 17 type immune response negative regulation of cell development regulation of CD4-positive, alpha-beta T cell activation negative regulation of alpha-beta T cell activation negative regulation of hemopoiesis regulation of adaptive immune response negative regulation of immune response negative regulation of adaptive immune response negative regulation of CD4-positive, alpha-beta T cell activation negative regulation of lymphocyte differentiation negative regulation of CD4-positive, alpha-beta T cell differentiation negative regulation of leukocyte activation regulation of CD4-positive, alpha-beta T cell differentiation regulation of alpha-beta T cell differentiation negative regulation of alpha-beta T cell differentiation negative regulation of lymphocyte activation regulation of adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains alpha-beta T cell activation involved in immune response CD4-positive, alpha-beta T cell activation regulation of T-helper 17 type immune response negative regulation of response to stimulus T cell differentiation involved in immune response negative regulation of T-helper cell differentiation negative regulation of cell activation negative regulation of immune system process T-helper 17 type immune response regulation of leukocyte apoptotic process regulation of lymphocyte apoptotic process regulation of B cell apoptotic process leukocyte apoptotic process B cell apoptotic process negative regulation of B cell apoptotic process lymphocyte apoptotic process negative regulation of leukocyte apoptotic process negative regulation of lymphocyte apoptotic process	cellular anatomical structure extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C [auth E]	IPR030477	Interleukin-2, conserved site	Conserved Site
C [auth E]	IPR000779	Interleukin-2	Family
C [auth E]	IPR009079	Four-helical cytokine-like, core	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
C [auth E]	: P60568	cancer leukopenia glomerulonephritis autoimmune hepatitis adult T-cell leukemia/lymphoma glioblastoma melanoma nephrotic syndrome Neoplasms, Experimental dissociative amnesia allergic contact dermatitis rheumatoid arthritis alopecia areata giant cell glioblastoma liver cancer cancer leukopenia glomerulonephritis autoimmune hepatitis adult T-cell leukemia/lymphoma glioblastoma melanoma nephrotic syndrome Neoplasms, Experimental dissociative amnesia allergic contact dermatitis rheumatoid arthritis alopecia areata giant cell glioblastoma liver cancer anemia leukemia prostate cancer AIDS major depressive disorder urinary bladder cancer HIV infectious disease asthma autoimmune disease neutropenia influenza paranoid schizophrenia kidney disease pneumonia COVID-19 adult acute respiratory distress syndrome liver neoplasm lymphatic system disease arthritic joint disease urinary bladder neoplasm autism brain cancer inborn carbohydrate metabolic disorder brain injury juvenile idiopathic arthritis peripheral nervous system disease kidney neoplasm cutaneous melanoma lung benign neoplasm allergic disease schizophrenia lymphopenia systemic lupus erythematosus tuberculosis vaginal cancer hypotensive disorder benign neoplasm inflammatory bowel disease breast disease kidney cancer peripheral neuropathy celiac disease acute T cell leukemia diarrheal disease liver disease endogenous depression allergic rhinitis skin disease amnestic disorder

RCSB PDB is hosted by

RCSB PDB is a member of

RCSB Partners
Nucleic Acid Knowledgebase

CoreTrustSeal

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.