Annotations: 1ZKA

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1zkaa1	All beta proteins	Immunoglobulin-like beta-sandwich	E set domains	NF-kappa-B/REL/DORSAL transcription factors, C-terminal domain	automated matches	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
A	d1zkaa2	Artifacts	Tags	Tags	Tags	N-terminal Tags	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	E set domains	8054205	3000070	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	RHD_dimer	e1zkaA1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: RHD_dimer	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF16179	Rel homology dimerisation domain (RHD_dimer)	Rel homology dimerisation domain	The Rel homology domain (RHD) is composed of two structural domains, an N-terminal DNA_binding domain (Pfam:PF00554) and a C-terminal dimerisation domain. This is the dimerisation domain [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Transcription factor RelB	DNA binding sequence-specific DNA binding binding double-stranded DNA binding nucleic acid binding RNA polymerase II transcription regulatory region sequence-specific DNA binding cis-regulatory region sequence-specific DNA binding sequence-specific double-stranded DNA binding transcription cis-regulatory region binding transcription regulatory region nucleic acid binding RNA polymerase II cis-regulatory region sequence-specific DNA binding transcription regulator activity DNA-binding transcription factor activity protein binding DNA binding sequence-specific DNA binding binding double-stranded DNA binding nucleic acid binding RNA polymerase II transcription regulatory region sequence-specific DNA binding cis-regulatory region sequence-specific DNA binding sequence-specific double-stranded DNA binding transcription cis-regulatory region binding transcription regulatory region nucleic acid binding RNA polymerase II cis-regulatory region sequence-specific DNA binding transcription regulator activity DNA-binding transcription factor activity protein binding kinase binding enzyme binding protein kinase binding identical protein binding	regulation of cellular process negative regulation of biological process RNA metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of cellular process negative regulation of biological process RNA metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process negative regulation of macromolecule metabolic process regulation of biosynthetic process negative regulation of DNA-templated transcription regulation of biological process negative regulation of metabolic process biological regulation primary metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of gene expression biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process metabolic process cellular process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process negative regulation of RNA metabolic process developmental process multicellular organismal process myeloid leukocyte differentiation cellular developmental process myeloid dendritic cell activation hemopoiesis cell activation cell development mononuclear cell differentiation myeloid leukocyte activation leukocyte activation myeloid cell differentiation immune system process cell differentiation anatomical structure development myeloid dendritic cell differentiation dendritic cell differentiation leukocyte differentiation negative regulation of type I interferon production cytokine production regulation of cytokine production regulation of multicellular organismal process regulation of interferon-beta production interferon-beta production type I interferon production negative regulation of cytokine production negative regulation of gene expression negative regulation of interferon-beta production negative regulation of multicellular organismal process regulation of type I interferon production cellular response to stimulus response to stimulus signaling non-canonical NF-kappaB signal transduction intracellular signal transduction cell communication intracellular signaling cassette signal transduction rhythmic process circadian regulation of gene expression circadian rhythm adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains lymphocyte activation lymphocyte differentiation cell activation involved in immune response CD4-positive, alpha-beta T cell differentiation CD4-positive, alpha-beta T cell differentiation involved in immune response alpha-beta T cell differentiation involved in immune response alpha-beta T cell differentiation T cell activation involved in immune response alpha-beta T cell activation involved in immune response T cell activation CD4-positive, alpha-beta T cell activation leukocyte activation involved in immune response alpha-beta T cell activation T cell differentiation lymphocyte activation involved in immune response T-helper cell differentiation immune response T cell differentiation involved in immune response T-helper 1 type immune response adaptive immune response immune effector process T-helper 1 cell differentiation response to osmotic stress cellular response to chemical stress cellular response to osmotic stress cellular response to environmental stimulus cellular response to chemical stimulus cellular response to stress response to stress response to chemical response to abiotic stimulus cellular response to abiotic stimulus antigen processing and presentation	intracellular organelle centrosome microtubule organizing center cellular anatomical structure intracellular anatomical structure cytoskeleton organelle membraneless organelle intracellular membraneless organelle microtubule cytoskeleton cytoplasm cytosol membrane-bounded organelle nucleus intracellular organelle centrosome microtubule organizing center cellular anatomical structure intracellular anatomical structure cytoskeleton organelle membraneless organelle intracellular membraneless organelle microtubule cytoskeleton cytoplasm cytosol membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen chromatin chromosome synapse cell junction protein-containing complex transcription regulator complex transcription repressor complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR032399	RelB leucine zipper	Domain
A	IPR037059	Rel homology domain (RHD), DNA-binding domain superfamily	Homologous Superfamily
A	IPR002909	IPT domain	Domain
A	IPR030492	Rel homology domain, conserved site	Conserved Site
A	IPR033926	NFkappaB IPT domain	Domain
A	IPR008967	p53-like transcription factor, DNA-binding domain superfamily	Homologous Superfamily
A	IPR014756	Immunoglobulin E-set	Homologous Superfamily
A	IPR011539	Rel homology domain, DNA-binding domain	Domain
A	IPR030496	Transcription factor RelB, RHD domain, N-terminal	Domain
A	IPR032400	RelB transactivation domain	Domain
A	IPR000451	NF-kappa-B/Dorsal	Family
A	IPR032397	Rel homology dimerisation domain	Domain
A	IPR013783	Immunoglobulin-like fold	Homologous Superfamily

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.