SOAT1

Chr 1

sterol O-acyltransferase 1

Also known as: ACACT, ACAT, ACAT-1, ACAT1, SOAT, STAT

The protein encoded by this gene belongs to the acyltransferase family. It is located in the endoplasmic reticulum, and catalyzes the formation of fatty acid-cholesterol esters. This gene has been implicated in the formation of beta-amyloid and atherosclerotic plaques by controlling the equilibrium between free cholesterol and cytoplasmic cholesteryl esters. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Nov 2011]

ResearchGenerating clinical summary…
MultiplemechanismLOEUF 0.95
Clinical SummarySOAT1
Population Constraint (gnomAD)
Low constraint (pLI 0.00) — loss-of-function variants are relatively tolerated in the population.
📋
ClinVar Variants
61 VUS of 98 total submissions
Some data sources returned errors (1)

omim: Error: OMIM fetch failed: 429

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint?
0.95LOEUF
pLI 0.000
Z-score 1.78
OE 0.65 (0.450.95)
Tolerant

Typical tolerance to LoF variation

Missense Constraint?
0.98Z-score
OE missense 0.84 (0.760.93)
256 obs / 304.1 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios?
LoF OE?0.65 (0.450.95)
00.351.4
Missense OE?0.84 (0.760.93)
00.61.4
Synonymous OE?0.96
01.21.6
LoF obs/exp: 19 / 29.4Missense obs/exp: 256 / 304.1Syn Z: 0.28

This gene — mechanism propensity

DN
0.76top 25%
GOF
0.77top 25%
LOF
0.2092th %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

98 submitted variants in ClinVar

Classification Summary

VUS61
Likely Benign4
Benign4
61
VUS
4
Likely Benign
4
Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
0
0
0
Likely Pathogenic
0
0
0
0
0
VUS
0
61
0
0
61
Likely Benign
0
3
0
1
4
Benign
0
1
0
3
4
Total0650469

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

View in ClinVar →

26 pathogenic / likely-pathogenic (of 29) ClinVar copy-number / structural variants overlap SOAT1 — these span large chromosomal regions, not the gene specifically, and are excluded from the counts above. Explore in CNV tools →

Protein Context — Lollipop Plot

SOAT1 · protein map & ClinVar variants

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

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

Search ClinicalTrials.gov →