RC3H2

protein-coding

ring finger and CCCH-type domains 2, the group of Zinc fingers CCCH-type|Small nucleolar RNA protein coding host genes|Ring finger proteins

Gene summary

Enables DNA binding activity; RNA binding activity; and ubiquitin protein ligase activity. Involved in protein polyubiquitination. Located in cell surface and membrane. [provided by Alliance of Genome Resources, Jun 2026]

Previous symbols:
  • MNAB

MANE transcript

NM_001100588.3

Inheritance

—

ClinVar variants

U:136B:1

Top phenotype

—

gnomAD constraint

pLI —, LoF o/e 0.08

Max pathogenic AF

—

Genomic locus

chr9:122,844,556-122,905,359

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~60.8 kb
Loading mutation effect viewer...

GenCC Phenotypes & Disease Associations

Curated gene-disease validity assertions and inheritance patterns

No GenCC data available for this gene.

ClinVar Associated Diseases & Phenotypes

Reported disease conditions connected to RC3H2 variants in ClinVar

2 Conditions Cataloged
not specifiedTotal: 114
not providedTotal: 5

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_001100588.3. 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
2
clinvar
1
clinvar
3
missense
121
clinvar
121
nonsense
2
clinvar
2
start loss
0
frameshift
1
clinvar
1
splice donor/acceptor (+/-2bp)
10
clinvar
10
Total0013610137
Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 62 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_001100588.3RefSeqNP_001094058.120MANE Select
ENST00000357244.7EnsemblENSP00000349783.220MANE Select
NM_001354478.2RefSeqNP_001341407.120Standard
NM_001354479.2RefSeqNP_001341408.119Standard

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Biological Process

  • protein polyubiquitination
  • B cell homeostasis
  • regulation of transcription by RNA polymerase II
  • post-embryonic development
  • posttranscriptional regulation of gene expression

Molecular Function

  • DNA-binding transcription factor activity, RNA polymerase II-specific
  • DNA binding
  • RNA binding
  • double-stranded RNA binding
  • mRNA binding

Cellular Component

  • P-body
  • cell surface
  • membrane
  • intracellular membrane-bounded organelle

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000373670
Coding exons
20
Length
60786
Individuals with no LoFs
124789
Homozygous LoFs
0
Heterozygous LoFs
10
Defined
124799
p
0.0000401
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense2.454636370.7270.00003287761
Missense (PolyPhen)233362.90.642054485
Synonymous0.6452172290.9460.00001212375
Loss of Function6.72562.20.08030.00000354706

Population LoF Frequency

PopulationCAFp-valueStatus
African0.0000650.000065rare
Latino/Admixed American00.0absent
Ashkenazi Jewish00.0absent
East Asian0.0000560.000056rare
Finnish00.0absent
European (Non-Finnish)0.0000630.000062rare
South Asian0.0000330.000033rare
Other00.0absent

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: Post-transcriptional repressor of mRNAs containing a conserved stem loop motif, called constitutive decay element (CDE), which is often located in the 3'-UTR, as in HMGXB3, ICOS, IER3, NFKBID, NFKBIZ, PPP1R10, TNF and in many more mRNAs. Binds to CDE and promotes mRNA deadenylation and degradation. This process does not involve miRNAs. In follicular helper T (Tfh) cells, represses of ICOS and TNFRSF4 expression, thus preventing spontaneous Tfh cell differentiation, germinal center B-cell differentiation in the absence of immunization and autoimmunity. In resting or LPS-stimulated macrophages, controls inflammation by suppressing TNF expression. Also recognizes CDE in its own mRNA and in that of paralogous RC3H1, possibly leading to feedback loop regulation (By similarity). miRNA-binding protein that regulates microRNA homeostasis. Enhances DICER-mediated processing of pre- MIR146a but reduces mature MIR146a levels through an increase of 3' end uridylation. Both inhibits ICOS mRNA expression and they may act together to exert the suppression (PubMed:25697406). Acts as a ubiquitin E3 ligase. Pairs with E2 enzymes UBE2B, UBE2D2, UBE2E2, UBE2E3, UBE2G2, UBE2K and UBE2Q2 and produces polyubiquitin chains (PubMed:26489670). Show the strongest activity when paired with UBE2N:UBE2V1 or UBE2N:UBE2V2 E2 complexes and generate both short and long polyubiquitin chains (PubMed:26489670). Involved in the ubiquitination of MAP3K5 (PubMed:24448648, PubMed:26489670) (By similarity). Able to interact with double-stranded RNA (dsRNA) (PubMed:26489670). {ECO:0000250|UniProtKB:P0C090, ECO:0000269|PubMed:24448648, ECO:0000269|PubMed:26489670}.;

Intolerance Scores

LoFtool
0.0705
RVIS EVS
-1.33
RVIS percentile EVS
4.69

Essentials

Essential (CRISPR)
N
Essential (CRISPR2)
N
Essential (gene trap)
N
Indispensability pred.
E
Indispensability score
0.974

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium
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