REL

protein-coding

REL proto-oncogene, NF-kB subunit, the group of NF-kappa B complex subunits|IPT domain containing

Gene summary

This gene encodes a protein that belongs to the Rel homology domain/immunoglobulin-like fold, plexin, transcription factor (RHD/IPT) family. Members of this family regulate genes involved in apoptosis, inflammation, the immune response, and oncogenic processes. This proto-oncogene plays a role in the survival and proliferation of B lymphocytes. Mutation or amplification of this gene is associated with B-cell lymphomas, including Hodgkin's lymphoma. Single nucleotide polymorphisms in this gene are associated with susceptibility to ulcerative colitis and rheumatoid arthritis. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Apr 2014]

MANE transcript

NM_001291746.2

Inheritance

AR

ClinVar variants

P:5U:83B:96

Top phenotype

Immunodeficiency 92

gnomAD constraint

pLI —, LoF o/e 0.07

Max pathogenic AF

—

Genomic locus

chr2:60,881,491-60,931,612

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~50.1 kb
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GenCC Phenotypes & Disease Associations

Curated gene-disease validity assertions and inheritance patterns

immunodeficiency 92MODERATE

Inheritance Pattern: AR

Disease ID:MONDO:0030498

Submitter: PanelApp Australia

immunodeficiency 92MODERATE

Inheritance Pattern: AR

Disease ID:MONDO:0030498

Submitter: ClinGen

*REL* was first reported in relation to immunodeficiency 92 in a single patient in 2019 (Beaussant-Cohen S, et al., 2019, PMID: 31103457). A second patient was reported in Lévy R, et al., 2021 (PMID: 34623332) and both patients were homozygous for splice variants with a proposed loss of function mechanism. Experimentally, this gene-disease relationship is supported by its expression pattern and biochemical function. c-Rel, the protein product of *REL*, is strongly expressed by control EBV-B cells and was detected in all leukocyte subsets from healthy donors, the highest levels being recorded for γδ T cells, naive CD19+ B cells, CD16+ monocytes, and CD141+ conventional DCs (PMID: 34623332). c-Rel is a transcription factor in the NF-κB family, critical for T and B cell function, it binds to the promoters of genes that encode cytokines important for immunity against infectious pathogens, including IL-2, IFN-γ, IL-12, IL-21, and IL-23 (PMID: 22207895) with significant functional alteration observed in patients (PMID: 34623332). Furthermore, Rel-deficient mice have impaired T and B cell proliferation, hypogammaglobulinemia, and impaired cytokine production (PMID: 7649478, 10221648). The patients' combined immunodeficiency mirrors the defects in T cell activation, B cell proliferation, innate immunity and humoral immunity seen in c-Rel-deficient mice. In summary, there is moderate evidence to support this gene-disease relationship. While more evidence is needed to establish this relationship definitively, no convincing contradictory evidence has emerged. This gene-disease pair was originally evaluated by the SCID/CID GCEP on 2023 Mar 16. It was reevaluated on 2025 Nov 24. As a result of this reevaluation, no new evidence was identified and the classification did not change.

immunodeficiency 92STRONG

Inheritance Pattern: AR

Disease ID:MONDO:0030498

Submitter: Labcorp Genetics (formerly Invitae)

Clinical Genomic Database (CGD)

Immunodeficiency 92AR

Manifestation: Allergy/Immunology/Infectious;

Intervention: Allergy/Immunology/Infectious;

Rationale: The condition involves increased risk of severe and early-onset infections, and awareness may allow preventative measures and early and aggressive treatment of infections; HSCT has been described

Refs: 31103457; 34623332Source: CGD (NHGRI)

ClinVar Associated Diseases & Phenotypes

Reported disease conditions connected to REL variants in ClinVar

4 Conditions Cataloged
not providedTotal: 217
not specifiedTotal: 68
Immunodeficiency 92Total: 8
REL-related disorderTotal: 2

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_001291746.2. Only rare variants are included.

We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.

Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.

EffectPLPVUSLBBSum
synonymous
84
clinvar
1
clinvar
85
missense
81
clinvar
10
clinvar
91
nonsense
1
clinvar
1
start loss
0
frameshift
1
clinvar
2
clinvar
3
splice donor/acceptor (+/-2bp)
2
clinvar
1
clinvar
1
clinvar
4
Total4183951184

Highest pathogenic variant AF is 0.000010151419

Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 23 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_001291746.2RefSeqNP_001278675.110MANE Select
ENST00000394479.4EnsemblENSP00000377989.410MANE Select
NM_001438025.1RefSeqNP_001424954.19Standard
NM_002908.4RefSeqNP_002899.111Standard

Model Organisms & Knockout Phenotypes

Observed phenotypic effects in mouse and zebrafish models

Gene / ModelOrganismObserved Phenotype
relDanio rerio

Structure: trunk

Quality: curved

abnormal

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Pathways ConsensusPathDB

  • Ras signaling pathway - Homo sapiens (human)
  • Viral carcinogenesis - Homo sapiens (human)
  • Transcriptional misregulation in cancer - Homo sapiens (human)
  • Tacrolimus/Cyclosporine Pathway, Pharmacodynamics
  • IL-1 signaling pathway

Biological Process

  • negative regulation of transcription by RNA polymerase II
  • inflammatory response
  • I-kappaB kinase/NF-kappaB signaling
  • negative regulation of gene expression
  • negative regulation of interferon-beta production

Molecular Function

  • RNA polymerase II regulatory region sequence-specific DNA binding
  • RNA polymerase II distal enhancer sequence-specific DNA binding
  • DNA-binding transcription factor activity, RNA polymerase II-specific
  • DNA-binding transcription activator activity, RNA polymerase II-specific
  • chromatin binding

Cellular Component

  • nucleus
  • nucleoplasm
  • transcription factor complex
  • cytosol

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000295025
Coding exons
11
Length
50090
Individuals with no LoFs
125730
Homozygous LoFs
0
Heterozygous LoFs
10
Defined
125740
p
0.0000398
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense1.762433330.7290.00001704069
Missense (PolyPhen)58135.090.429351635
Synonymous0.4001121180.9530.000006341172
Loss of Function4.51227.50.07270.00000149357

Population LoF Frequency

PopulationCAFp-valueStatus
African00.0absent
Latino/Admixed American0.000120.00012rare
Ashkenazi Jewish00.0absent
East Asian0.000170.00016rare
Finnish00.0absent
European (Non-Finnish)0.0000260.000026rare
South Asian00.0absent
Other00.0absent

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: Proto-oncogene that may play a role in differentiation and lymphopoiesis. NF-kappa-B is a pleiotropic transcription factor which is present in almost all cell types and is involved in many biological processed such as inflammation, immunity, differentiation, cell growth, tumorigenesis and apoptosis. NF- kappa-B is a homo- or heterodimeric complex formed by the Rel-like domain-containing proteins RELA/p65, RELB, NFKB1/p105, NFKB1/p50, REL and NFKB2/p52. The dimers bind at kappa-B sites in the DNA of their target genes and the individual dimers have distinct preferences for different kappa-B sites that they can bind with distinguishable affinity and specificity. Different dimer combinations act as transcriptional activators or repressors, respectively. NF-kappa-B is controlled by various mechanisms of post-translational modification and subcellular compartmentalization as well as by interactions with other cofactors or corepressors. NF-kappa-B complexes are held in the cytoplasm in an inactive state complexed with members of the NF- kappa-B inhibitor (I-kappa-B) family. In a conventional activation pathway, I-kappa-B is phosphorylated by I-kappa-B kinases (IKKs) in response to different activators, subsequently degraded thus liberating the active NF-kappa-B complex which translocates to the nucleus. The NF-kappa-B heterodimer RELA/p65-c-Rel is a transcriptional activator.;

Recessive Scores

pRec
0.362

Intolerance Scores

LoFtool
0.286
RVIS EVS
-0.69
RVIS percentile EVS
15.12

Essentials

Essential (CRISPR)
N
Essential (CRISPR2)
N
Essential (gene trap)
N
Indispensability pred.
E
Indispensability score
0.567

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium
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