Genetic Variant STOML2:p.Asp304Asn (chr9-35100621-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_013442.3(STOML2):c.910G>A(p.Asp304Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000805 in 1,613,914 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

STOML2
NM_013442.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.91

Variant links:

Genes affected

STOML2 (HGNC:14559): (stomatin like 2) Enables GTPase binding activity and cardiolipin binding activity. Involved in several processes, including inorganic cation transmembrane transport; positive regulation of cardiolipin metabolic process; and positive regulation of mitochondrial DNA replication. Located in membrane raft; mitochondrial inner membrane; and mitochondrial intermembrane space. Is extrinsic component of plasma membrane. Colocalizes with several cellular components, including COP9 signalosome; T cell receptor complex; and immunological synapse. [provided by Alliance of Genome Resources, Apr 2022]

STOML2 links:

PIGO-AS1 (HGNC:55692): (PIGO antisense RNA 1)

PIGO-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
STOML2	NM_013442.3 link	c.910G>A	p.Asp304Asn	missense_variant	Exon 9 of 10	ENST00000356493.10	NP_038470.1	Q9UJZ1-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
STOML2	ENST00000356493.10 link	c.910G>A	p.Asp304Asn	missense_variant	Exon 9 of 10	1	NM_013442.3	ENSP00000348886.5		Q9UJZ1-1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152130

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000159

AC:

AN:

251476

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135914

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.0000462

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000684

AC:

AN:

1461784

Hom.:

Cov.:

AF XY:

0.00000688

AC XY:

AN XY:

727202

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000348

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.00000450

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152130

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74328

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

ExAC

AF:

0.0000165

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 14, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.910G>A (p.D304N) alteration is located in exon 9 (coding exon 9) of the STOML2 gene. This alteration results from a G to A substitution at nucleotide position 910, causing the aspartic acid (D) at amino acid position 304 to be replaced by an asparagine (N). 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

0.22

BayesDel_addAF

Benign

0.0086

BayesDel_noAF

Benign

-0.13

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.090

.;T;T

Eigen

Uncertain

0.50

Eigen_PC

Uncertain

0.57

FATHMM_MKL

Uncertain

0.97

LIST_S2

Uncertain

0.93

D;D;D

M_CAP

Pathogenic

0.45

MetaRNN

Uncertain

0.74

D;D;D

MetaSVM

Pathogenic

1.0

MutationAssessor

Benign

1.6

.;.;L

PrimateAI

Uncertain

0.72

PROVEAN

Uncertain

-4.4

D;.;D

REVEL

Uncertain

0.55

Sift

Benign

0.21

T;.;T

Sift4G

Benign

0.22

T;T;T

Polyphen

0.99

.;.;D

Vest4

0.73

MutPred

0.35

.;.;Gain of catalytic residue at D304 (P = 0.0435);

MVP

0.84

MPC

1.9

ClinPred

0.97

GERP RS

5.5

Varity_R

0.59

gMVP

0.86

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