SGSM1

Chr 22

small G protein signaling modulator 1

Also known as: RUTBC2

NCBI Gene: 129049ENSG00000167037UniProt: Q2NKQ1

Enables GTPase activator activity and small GTPase binding activity. Predicted to act upstream of or within positive regulation of transcription by RNA polymerase II. Located in cytoplasmic vesicle membrane and cytosol. [provided by Alliance of Genome Resources, Jul 2025]

203
ClinVar variants
17
Pathogenic / LP
0.00
pLI score
0
Active trials
Clinical Summary— SGSM1
⚡
Population Constraint (gnomAD)
Constrained for loss-of-function variants (OE-LoF 0.33) despite low pLI — interpret in context.
📋
ClinVar Variants
17 Pathogenic / Likely Pathogenic· 157 VUS of 203 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

gnomAD
Moderate LoF intolerance
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.
0.48LOEUF
pLI 0.000
Z-score 4.80
OE 0.33 (0.23–0.48)
Moderately constrained

More LoF-intolerant than ~75% of genes

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.
1.97Z-score
OE missense 0.79 (0.74–0.85)
556 obs / 703.1 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.0.33 (0.23–0.48)
0≤0.351.4
Missense OE?Ratio of observed to expected missense variants. OE ≤ 0.6 = fewer missense variants than expected by chance.0.79 (0.74–0.85)
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.1.00
0≤1.21.6
LoF obs/exp: 20 / 60.2Missense obs/exp: 556 / 703.1Syn Z: 0.04

ClinVar Variant Classifications

203 submitted variants in ClinVar

ClinVar

Classification Summary

Pathogenic17
VUS157
Likely Benign9
Benign4
17
Pathogenic
157
VUS
9
Likely Benign
4
Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
17
0
17
Likely Pathogenic
0
0
0
0
0
VUS
0
151
6
0
157
Likely Benign
0
7
0
2
9
Benign
0
0
1
3
4
Total0158245187

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

View in ClinVar →

Protein Context — Lollipop Plot

SGSM1 · 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