RASA4

Chr 7

RAS p21 protein activator 4

Also known as: CAPRI, GAPL

NCBI Gene: 10156ENSG00000105808UniProt: O43374

This gene encodes a member of the GAP1 family of GTPase-activating proteins that suppresses the Ras/mitogen-activated protein kinase pathway in response to Ca(2+). Stimuli that increase intracellular Ca(2+) levels result in the translocation of this protein to the plasma membrane, where it activates Ras GTPase activity. Consequently, Ras is converted from the active GTP-bound state to the inactive GDP-bound state and no longer activates downstream pathways that regulate gene expression, cell growth, and differentiation. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

28
ClinVar variants
16
Pathogenic / LP
0.12
pLI score
0
Active trials
Clinical Summary— RASA4
⚡
Population Constraint (gnomAD)
Low constraint (pLI 0.12) — loss-of-function variants are relatively tolerated in the population.
📋
ClinVar Variants
16 Pathogenic / Likely Pathogenic· 7 VUS of 28 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

gnomAD
Tolerant — LoF & missense variants common in population
LoF Constraint?LOEUF (Loss-of-function Observed/Expected Upper bound Fraction) is the upper bound of the 90% CI for LoF OE — the preferred gnomAD v4 metric. Lower = more intolerant to LoF. LOEUF < 0.35 = highly constrained.
1.20LOEUF
pLI 0.115
Z-score 1.31
OE 0.38 (0.15–1.20)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint?Missense Z-score: standard deviations fewer missense variants observed vs. expected. Z > 3.09 (p < 0.001) = gene does not tolerate missense variation. OE missense < 0.6 is also considered constrained.
0.84Z-score
OE missense 0.70 (0.54–0.90)
42 obs / 60.3 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios?Shaded band = 90% confidence interval. Vertical tick = point estimate. Grey threshold line = gnomAD constraint cutoff for that variant class.
LoF OE?Ratio of observed to expected LoF variants. Upper CI bound (LOEUF) ≤ 0.35 = strong LoF constraint signal.0.38 (0.15–1.20)
0≤0.351.4
Missense OE?Ratio of observed to expected missense variants. OE ≤ 0.6 = fewer missense variants than expected by chance.0.70 (0.54–0.90)
0≤0.61.4
Synonymous OE?Control metric — synonymous variants are largely neutral and expected near OE = 1.0. Significant deviation may indicate annotation issues.0.90
0≤1.21.6
LoF obs/exp: 2 / 5.2Missense obs/exp: 42 / 60.3Syn Z: 0.41

ClinVar Variant Classifications

28 submitted variants in ClinVar

ClinVar

Classification Summary

Pathogenic15
Likely Pathogenic1
VUS7
Likely Benign3
Benign2
15
Pathogenic
1
Likely Pathogenic
7
VUS
3
Likely Benign
2
Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
15
0
15
Likely Pathogenic
0
0
1
0
1
VUS
0
4
3
0
7
Likely Benign
0
0
2
1
3
Benign
0
1
0
1
2
Total0521228

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

View in ClinVar →

Protein Context — Lollipop Plot

RASA4 · protein map & ClinVar variants

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

OMIM — Genotype-Phenotype Relationships

1 OMIM entry

OMIM
Clinical Literature
Landmark / reviewRecent case evidence
Key Publications
Landmark & review papers · by relevance
PubMed
Top 10 resultsSearch PubMed ↗
Recent Gene-Specific Literature
Gene in title · MEDLINE · newest first
Europe PMC
Top 5 resultsSearch Europe PMC ↗

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

ClinicalTrials.gov

No active trials found for this gene.

Search ClinicalTrials.gov →

External Resources

Links to major genomics databases and tools