Genetic Variant TM9SF3:p.Ile307Val (chr10-96551285-T-C) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4BS2

The NM_020123.4(TM9SF3):c.919A>G(p.Ile307Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000558 in 1,612,474 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

TM9SF3
NM_020123.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.79

Publications

0 publications found

Variant links:

Genes affected

TM9SF3 (HGNC:21529): (transmembrane 9 superfamily member 3) Predicted to be involved in protein localization to membrane. Predicted to be located in exocytic vesicle. Predicted to be active in membrane. [provided by Alliance of Genome Resources, Apr 2022]

TM9SF3 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.26552624).

BS2

High AC in GnomAdExome4 at 7 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TM9SF3	NM_020123.4 link	c.919A>G	p.Ile307Val	missense_variant	Exon 7 of 15	ENST00000371142.9	NP_064508.3	Q9HD45A0A024QYS2
TM9SF3	XM_011539976.3 link	c.973A>G	p.Ile325Val	missense_variant	Exon 7 of 15		XP_011538278.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
TM9SF3	ENST00000371142.9 link	c.919A>G	p.Ile307Val	missense_variant	Exon 7 of 15	1	NM_020123.4	ENSP00000360184.4	Q9HD45
TM9SF3	ENST00000490192.1 link	n.143A>G		non_coding_transcript_exon_variant	Exon 2 of 4	4
TM9SF3	ENST00000649367.1 link	n.1257A>G		non_coding_transcript_exon_variant	Exon 7 of 15
TM9SF3	ENST00000443638.1 link	c.*26A>G		downstream_gene_variant		3		ENSP00000401152.1	Q5TB53

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152170

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:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00

AC:

AN:

250138

AF XY:

0.00

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000479

AC:

AN:

1460304

Hom.:

Cov.:

AF XY:

0.00000688

AC XY:

AN XY:

726504

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33434

American (AMR)

AF:

0.00

AC:

AN:

44698

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26102

East Asian (EAS)

AF:

0.00

AC:

AN:

39574

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86214

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52666

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5760

European-Non Finnish (NFE)

AF:

0.00000540

AC:

AN:

1111506

Other (OTH)

AF:

0.00

AC:

AN:

60350

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.468

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152170

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74334

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41430

American (AMR)

AF:

0.00

AC:

AN:

15276

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5198

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10608

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68036

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.550

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 20, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.919A>G (p.I307V) alteration is located in exon 7 (coding exon 7) of the TM9SF3 gene. This alteration results from a A to G substitution at nucleotide position 919, causing the isoleucine (I) at amino acid position 307 to be replaced by a valine (V). 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

0.073

BayesDel_addAF

Benign

-0.068

BayesDel_noAF

Benign

-0.34

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.025

Eigen

Benign

-0.27

Eigen_PC

Benign

0.0024

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.95

M_CAP

Benign

0.0098

MetaRNN

Benign

0.27

MetaSVM

Benign

-1.1

MutationAssessor

Benign

-0.34

PhyloP100

7.8

PrimateAI

Uncertain

0.77

PROVEAN

Benign

0.0

REVEL

Benign

0.23

Sift

Benign

0.49

Sift4G

Benign

0.82

Polyphen

0.0020

Vest4

0.54

MVP

0.21

MPC

0.81

ClinPred

0.87

GERP RS

5.3

Varity_R

0.075

gMVP

0.19

Mutation Taster

=69/31

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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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10-96551285-T-C

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over