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Symbol RELB contributors: mct - updated : 12-09-2017
HGNC name v-rel reticuloendotheliosis viral oncogene homolog B, nuclear factor of kappa light polypeptide gene enhancer in B-cells 3 (avian)
HGNC id 9956
Corresponding disease
IMD53 Immunodeficiency 53
Location 19q13.32      Physical location : 45.504.711 - 45.541.452
Synonym name
  • polypeptide gene enhancer in B-cells 3
  • v-rel avian reticuloendotheliosis viral oncogene homolog B (nuclear factor of kappa light polypeptide gene enhancer in B-cells 3)
  • Synonym symbol(s) I-REL, IMD53, IREL, REL-B
    TYPE functioning gene
    STRUCTURE 36.74 kb     12 Exon(s)
    10 Kb 5' upstream gene genomic sequence study
    MAPPING cloned Y linked N status provisional
    Physical map
    LOC147711 19q13.32 similar to zinc finger protein 285 ZNF180 19q13.1-q13.3 zinc finger protein 180 (HHZ168) UNQ9366 19q13.32 GPAD9366 LOC388550 19 similar to CEACAM5 protein LOC390941 19 LOC390941 LOC147710 19q13.32 hypothetical LOC147710 PVR 19q13.2 poliovirus receptor CEAL1 19q13.32 carcinoembryonic antigen-like 1 LOC388551 19 similar to carcinoembryonic antigen-related cell adhesion molecule 1 (biliary glycoprotein) BCL3 19q13.2 B-cell CLL/lymphoma 3 CBLC 19q13.2-q13.3 Cas-Br-M (murine) ecotropic retroviral transforming sequence c LU 19q12-q13 Lutheran blood group (Auberger b antigen included) PVRL2 19q13.2-q13.4 poliovirus receptor-related 2 (herpesvirus entry mediator B) TOMM40 19q13 translocase of outer mitochondrial membrane 40 homolog (yeast) APOE 19q13.2 apolipoprotein E APOC1 19q13.2 apolipoprotein C-I APOC4 19q13.2 apolipoprotein C-IV APOC2 19q13.2 apolipoprotein C-II CLPTM1 19q13.2 cleft lip and palate associated transmembrane protein 1 RELB 19q13.32 v-rel reticuloendotheliosis viral oncogene homolog B, nuclear factor of kappa light polypeptide gene enhancer in B-cells 3 (avian) SFRS16 19q13.3 splicing factor, arginine/serine-rich 16 (suppressor-of-white-apricot homolog, Drosophila) ZNF342 19q13.32 zinc finger protein 342 GEMIN7 19q13.32 gem (nuclear organelle) associated protein 7 EIF5AP3 19q13.2 eukaryotic translation initiation factor 5A pseudogene 3 LOC284352 19q13.32 hypothetical protein LOC284352 FLJ33600 19q13.32 FLJ33600 protein MGC2650 19q13.32 hypothetical protein MGC2650 LOC388552 19 similar to BC043666 protein XTP7 19q13.32 protein 7 transactivated by hepatitis B virus X antigen (HBxAg) MARK4 19q13.2 MAP/microtubule affinity-regulating kinase 4 CKM 19q13.2 creatine kinase, muscle LOC390943 19 similar to 40S ribosomal protein S16 KLC2L 19q13.3 similar to 40S ribosomal protein S16 ERCC2 19q13.3 excision repair cross-complementing rodent repair deficiency, complementation group 2 (xeroderma pigmentosum D)
    TRANSCRIPTS type messenger
    identificationnb exonstypebpproduct
    ProteinkDaAAspecific expressionYearPubmed
    12 - 2287 - 579 - 2017 28507099
       expressed in (based on citations)
    cell lineage
    cell lines
    at STAGE
  • a bipartite arginine/lysine-rich NLS mediating the binding of RElB to importin alpha5 and alpha6 and subsequent nuclear translocation of the protein
  • conjugated sumoylated
  • PPP phosphatase family
  • CATEGORY protooncogene
    SUBCELLULAR LOCALIZATION     intracellular
  • is always present in the mitochondrial fraction
  • NFKB family members NFKB2 and RELB translocate to the nucleus in response to CO2
  • basic FUNCTION
  • can repress proinflammatory gene expression, and its expression in sepsis patient blood leukocytes may play a role in the endotoxin-tolerant phenotype
  • functionally associated with the aryl hydrocarbon receptor (AHR) and mediates transcription of chemokines such as IL8
  • NF-kappaB subunit downstream of MAP3K14 responsible for osteoclast differentiation
  • playing a role in the crosstalk between non-hematopoietic stromal cells and leukemic cells
  • contributes to tumorigenicity of prostate cancer
  • responsible for the lipopolysaccharide-mediated attachment and may play an important role in the progression of some cancers
  • inhibits cell proliferation and tumor growth in a TP53-dependent manner
  • function for RELB as an important regulator of the mammalian circadian system in fibroblasts
  • RELB controls dendritic cell (DC) maturation
  • negatively regulates osteoblast differentiation and bone formation
  • is a novel regulator of human pluripotent stem cells (hPSCs) proliferation, suggesting a new function for RELB, in addition to its widely accepted role as a transcription factor, the post-transcriptional modulation of IGF2 and cell-cycle gene expression
  • role of RELB on lymphocyte development , and in the absence of RELB, B cells development is arrested, resulting in poor production of immunoglobulins and specific antibodies
  • critical role for the combined activity of the RELB and NFKB2 subunits in B cell homeostasis that cannot be compensated for by the canonical NFKB pathway under physiological conditions
  • functioned as an oncogene in prostate cancer
  • RELB/NFKB2 signaling positively and intrinsically regulates hematopoietic stem/progenitor cell (HSPC) self-renewal and maintains stromal/osteoblastic niches
  • a component
  • RELB/NFKB1 regulates CCL19 production, but fails to promote dendritic cells maturation
    small molecule
  • ARNT is a TNFRSF8-interacting protein that modulated the activity of the RELB subunit of the transcription factor nuclear factor kappaB (NF-kappaB)
  • interacting with DPF2 (functions as an efficient adaptor protein between the SWI/SNF complex and RELB and plays important roles in noncanonical NF-kappaB transcriptional activation and its associated oncogenic activity)
  • GSK3B is a crucial regulator of RELB degradation, stressing the relevant linkage between the NFKB system and GSK3B
  • CHUK and IKBKB are RELB interacting partners whose activation by TNF promotes RELB phosphorylation at serine 472
  • SIRT1-RELB induction of mitochondrial biogenesis included increases in mitochondrial mass, mitochondrial-to-nuclear DNA ratios, and both nuclear and mitochondrial encoded proteins
  • TNFSF13B signals coordinate both RELB and REL activities to ensure survival during peripheral B-cell maturation
  • RELB is necessary for the effective production of downstream TNFRSF11A(+) mTEC (medullary Thymic epithelial cells) progenitors
  • NKRF is a novel RELB-response gene, and Neutrophil elastase (NE) is a stimulator of the non-canonical RELB/NFKB1 pathway in airway smooth muscle cells
  • cell & other
    Other SUMOylation of RELB might be one of these post-translational modifications rendering the function of the NFKB transcription factor RELB
    corresponding disease(s) IMD53
    Variant & Polymorphism
    Candidate gene
    Therapy target
    developing a RELB-targeted therapeutic intervention, is valuable in treating advanced, metastatic prostate cancer
  • RelB(-/-) mice develop age-related increased trabecular bone mass associated with increased bone formation