Variant 13-99541666-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_004800.3(TM9SF2):c.1016C>T(p.Thr339Met) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.0000313 in 1,595,480 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/23 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000032 ( 0 hom. )

Consequence

TM9SF2
NM_004800.3 missense, splice_region

Scores

Splicing: ADA: 0.8752

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.88

Variant links:

Genes affected

TM9SF2 (HGNC:11865): (transmembrane 9 superfamily member 2) This gene encodes a member of the transmembrane 9 superfamily. The encoded 76 kDa protein localizes to early endosomes in human cells. The encoded protein possesses a conserved and highly hydrophobic C-terminal domain which contains nine transmembrane domains. The protein may play a role in small molecule transport or act as an ion channel. A pseudogene associated with this gene is located on the X chromosome. [provided by RefSeq, Oct 2012]

TM9SF2 links:

TM9SF2 (HGNC:):

TM9SF2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.21946773).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TM9SF2	NM_004800.3 linkuse as main transcript	c.1016C>T	p.Thr339Met	missense_variant, splice_region_variant	9/17	ENST00000376387.5	NP_004791.1	Q99805A0A024QYR8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
TM9SF2	ENST00000376387.5 linkuse as main transcript	c.1016C>T	p.Thr339Met	missense_variant, splice_region_variant	9/17	1	NM_004800.3	ENSP00000365567.3	Q99805
TM9SF2	ENST00000642475.1 linkuse as main transcript	c.1016C>T	p.Thr339Met	missense_variant, splice_region_variant	11/19			ENSP00000493515.1	Q99805
TM9SF2	ENST00000466555.1 linkuse as main transcript	n.391C>T		non_coding_transcript_exon_variant	2/2	2

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152084

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000286

AC:

AN:

244760

Hom.:

AF XY:

0.0000378

AC XY:

AN XY:

132298

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000307

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000536

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000319

AC:

AN:

1443396

Hom.:

Cov.:

AF XY:

0.0000334

AC XY:

AN XY:

718684

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000462

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000188

Gnomad4 NFE exome

AF:

0.0000355

Gnomad4 OTH exome

AF:

0.0000335

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152084

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74270

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000658

Hom.:

Bravo

AF:

0.0000453

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 12, 2021

The c.1016C>T (p.T339M) alteration is located in exon 9 (coding exon 9) of the TM9SF2 gene. This alteration results from a C to T substitution at nucleotide position 1016, causing the threonine (T) at amino acid position 339 to be replaced by a methionine (M). 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

0.096

BayesDel_addAF

Benign

-0.23

BayesDel_noAF

Benign

-0.39

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Benign

0.027

T;T

Eigen

Benign

0.042

Eigen_PC

Benign

0.21

FATHMM_MKL

Uncertain

0.92

LIST_S2

Pathogenic

0.97

.;D

M_CAP

Benign

0.029

MetaRNN

Benign

0.22

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.80

N;N

PrimateAI

Uncertain

0.73

PROVEAN

Benign

-0.95

.;N

REVEL

Benign

0.048

Sift

Benign

0.11

.;T

Sift4G

Benign

0.11

.;T

Polyphen

0.18

B;B

Vest4

0.34

MVP

0.12

MPC

1.3

ClinPred

0.16

GERP RS

5.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.094

gMVP

0.28

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.88

dbscSNV1_RF

Benign

0.53

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