Genetic Variant STOML1:p.Pro278Leu (chr15-73984829-G-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_004809.5(STOML1):c.833C>T(p.Pro278Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000162 in 1,614,002 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00017 ( 0 hom. )

Consequence

STOML1
NM_004809.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.15

Variant links:

Genes affected

STOML1 (HGNC:14560): (stomatin like 1) Predicted to enable ion channel inhibitor activity. Predicted to be involved in lipid transport. Predicted to act upstream of or within SMAD protein signal transduction; cellular response to leukemia inhibitory factor; and negative regulation of acid-sensing ion channel activity. Predicted to be located in cytoplasmic vesicle. Predicted to be active in plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

STOML1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.03367713).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
STOML1	NM_004809.5 link	c.833C>T	p.Pro278Leu	missense_variant	Exon 6 of 7	ENST00000541638.6	NP_004800.2	Q9UBI4-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
STOML1	ENST00000541638.6 link	c.833C>T	p.Pro278Leu	missense_variant	Exon 6 of 7	1	NM_004809.5	ENSP00000442478.2		Q9UBI4-1

Frequencies

GnomAD3 genomes

AF:

0.000131

AC:

AN:

152202

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000941

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000265

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000291

AC:

AN:

250620

Hom.:

AF XY:

0.000243

AC XY:

AN XY:

135564

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000323

Gnomad NFE exome

AF:

0.000576

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000166

AC:

242

AN:

1461800

Hom.:

Cov.:

AF XY:

0.000149

AC XY:

108

AN XY:

727208

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.000225

Gnomad4 NFE exome

AF:

0.000185

Gnomad4 OTH exome

AF:

0.000397

GnomAD4 genome

AF:

0.000131

AC:

AN:

152202

Hom.:

Cov.:

AF XY:

0.0000807

AC XY:

AN XY:

74354

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000941

Gnomad4 NFE

AF:

0.000265

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.000245

Hom.:

Bravo

AF:

0.0000907

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.000494

AC:

EpiCase

AF:

0.000382

EpiControl

AF:

0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 04, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.833C>T (p.P278L) alteration is located in exon 6 (coding exon 6) of the STOML1 gene. This alteration results from a C to T substitution at nucleotide position 833, causing the proline (P) at amino acid position 278 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.066

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.28

CADD

Benign

8.7

DANN

Benign

0.92

DEOGEN2

Benign

0.072

T;.;.;.;T

Eigen

Benign

-0.91

Eigen_PC

Benign

-0.93

FATHMM_MKL

Benign

0.12

LIST_S2

Uncertain

0.89

D;D;D;D;D

M_CAP

Benign

0.047

MetaRNN

Benign

0.034

T;T;T;T;T

MetaSVM

Benign

-0.45

MutationAssessor

Benign

0.81

L;.;.;.;.

PrimateAI

Benign

0.35

PROVEAN

Benign

-1.9

N;N;N;.;N

REVEL

Benign

0.066

Sift

Benign

0.040

D;T;T;.;T

Sift4G

Benign

0.10

T;D;D;T;T

Polyphen

0.0070

B;.;B;.;.

Vest4

0.28

MVP

0.27

MPC

0.34

ClinPred

0.022

GERP RS

2.3

Varity_R

0.032

gMVP

0.30

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over