RHBDL2

Chr 1

rhomboid like 2

Also known as: RRP2

RHBDL2 encodes an intramembrane serine protease that cleaves membrane-bound substrates including ephrin B3 to release functional polypeptides. Mutations cause neurodevelopmental disorders with intellectual disability and seizures, inherited in an autosomal dominant pattern. The gene is highly intolerant to loss-of-function variants, reflecting its critical role in normal development.

OMIMResearchSummary from RefSeq, UniProt
MultiplemechanismLOEUF 1.37
Clinical SummaryRHBDL2
Population Constraint (gnomAD)
Low constraint (pLI 0.00) — loss-of-function variants are relatively tolerated in the population.
📋
ClinVar Variants
7 unique Pathogenic / Likely Pathogenic· 46 VUS of 66 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
1.37LOEUF
pLI 0.000
Z-score 0.54
OE 0.85 (0.541.37)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint
0.07Z-score
OE missense 0.98 (0.861.12)
159 obs / 161.5 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.85 (0.541.37)
00.351.4
Missense OE0.98 (0.861.12)
00.61.4
Synonymous OE0.77
01.21.6
LoF obs/exp: 12 / 14.2Missense obs/exp: 159 / 161.5Syn Z: 1.41
DN
0.6937th %ile
GOF
0.78top 25%
LOF
0.2386th %ile

This gene has evidence for multiple mechanisms of pathogenicity (gain-of-function and dominant-negative). Both the Badonyi & Marsh prediction and the broader genomic evidence point to gain-of-function as the predominant mechanism. Different variants in this gene may act through different mechanisms — interpret in context of the specific variant.

GOFprediction above median
DNprediction above median

Note: In-silico variant effect predictors (SIFT, PolyPhen, REVEL, CADD) may underestimate pathogenicity of missense variants in genes with GOF or DN mechanisms. Consider functional evidence and clinical context.

Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312.

ClinVar Variant Classifications

66 submitted variants in ClinVar

Classification Summary

Pathogenic5
Likely Pathogenic2
VUS46
Likely Benign3
5
Pathogenic
2
Likely Pathogenic
46
VUS
3
Likely Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
5
0
5
Likely Pathogenic
0
0
2
0
2
VUS
0
42
4
0
46
Likely Benign
0
2
1
0
3
Benign
0
0
0
0
0
Total04412056

LoF = frameshift, stop gained/lost, canonical splice · Counts from ClinVar esearch · Updated hourly

View in ClinVar →

Protein Context — Lollipop Plot

RHBDL2 · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

3D Protein StructureAlphaFold

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

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Clinical Literature
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