Genetic Variant STOML2:p.Arg201Trp (chr9-35101258-G-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_013442.3(STOML2):c.601C>T(p.Arg201Trp) variant causes a missense change. The variant allele was found at a frequency of 0.0000979 in 1,613,992 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000099 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000098 ( 0 hom. )

Consequence

STOML2
NM_013442.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.84

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 was made for transcript

Our verdict: Uncertain_significance. The variant received 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.601C>T	p.Arg201Trp	missense_variant	Exon 7 of 10	ENST00000356493.10	NP_038470.1	Q9UJZ1-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
STOML2	ENST00000356493.10 link	c.601C>T	p.Arg201Trp	missense_variant	Exon 7 of 10	1	NM_013442.3	ENSP00000348886.5	Q9UJZ1-1
STOML2	ENST00000452248.6 link	c.466C>T	p.Arg156Trp	missense_variant	Exon 6 of 9	2		ENSP00000395743.2	Q9UJZ1-2
STOML2	ENST00000619795.4 link	c.463C>T	p.Arg155Trp	missense_variant	Exon 6 of 9	3		ENSP00000481672.1	A0A087WYB4
STOML2	ENST00000488050.1 link	n.34C>T		non_coding_transcript_exon_variant	Exon 2 of 4	5		ENSP00000434531.1	F2Z2I8

Frequencies

GnomAD3 genomes

AF:

0.0000986

AC:

AN:

152100

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00289

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.000480

GnomAD2 exomes

AF:

0.000183

AC:

AN:

251462

AF XY:

0.000169

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00427

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000978

AC:

143

AN:

1461892

Hom.:

Cov.:

AF XY:

0.0000963

AC XY:

AN XY:

727246

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00413

AC:

108

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000207

AC:

AN:

1112012

Other (OTH)

AF:

0.000199

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.483

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000986

AC:

AN:

152100

Hom.:

Cov.:

AF XY:

0.000135

AC XY:

AN XY:

74298

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41408

American (AMR)

AF:

0.00

AC:

AN:

15274

Ashkenazi Jewish (ASJ)

AF:

0.00289

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10598

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000441

AC:

AN:

68036

Other (OTH)

AF:

0.000480

AC:

AN:

2084

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.488

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000238

Hom.:

Bravo

AF:

0.000110

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.0000906

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 20, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.601C>T (p.R201W) alteration is located in exon 7 (coding exon 7) of the STOML2 gene. This alteration results from a C to T substitution at nucleotide position 601, causing the arginine (R) at amino acid position 201 to be replaced by a tryptophan (W). 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

Pathogenic

0.82

BayesDel_addAF

Pathogenic

0.26

BayesDel_noAF

Pathogenic

0.20

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.50

.;D;D

Eigen

Pathogenic

0.72

Eigen_PC

Uncertain

0.59

FATHMM_MKL

Uncertain

0.92

LIST_S2

Pathogenic

1.0

D;D;D

M_CAP

Pathogenic

0.74

MetaRNN

Uncertain

0.47

T;T;T

MetaSVM

Pathogenic

1.0

MutationAssessor

Pathogenic

4.9

.;.;H

PhyloP100

4.8

PrimateAI

Pathogenic

0.88

PROVEAN

Pathogenic

-7.9

D;.;D

REVEL

Pathogenic

0.77

Sift

Pathogenic

0.0

D;.;D

Sift4G

Pathogenic

0.0

D;D;D

Polyphen

1.0

.;.;D

Vest4

0.79

MVP

0.88

MPC

1.9

ClinPred

0.99

GERP RS

4.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.90

gMVP

0.95

Mutation Taster

=43/57

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

Details are displayed if max score is > 0.2

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

Publications

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chr9-35101258-G-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over