chr13-99501751-G-A

Variant summary

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

The ENST00000376387.5(TM9SF2):​c.145G>A​(p.Glu49Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000686 in 1,458,074 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

TM9SF2
ENST00000376387.5 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.725
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]

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=0.03967172).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TM9SF2NM_004800.3 linkuse as main transcriptc.145G>A p.Glu49Lys missense_variant 1/17 ENST00000376387.5 NP_004791.1 Q99805A0A024QYR8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TM9SF2ENST00000376387.5 linkuse as main transcriptc.145G>A p.Glu49Lys missense_variant 1/171 NM_004800.3 ENSP00000365567.3 Q99805
TM9SF2ENST00000642475.1 linkuse as main transcriptc.145G>A p.Glu49Lys missense_variant 3/19 ENSP00000493515.1 Q99805

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000407
AC:
1
AN:
245852
Hom.:
0
AF XY:
0.00000749
AC XY:
1
AN XY:
133442
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:
0.00
Gnomad NFE exome
AF:
0.00000897
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.86e-7
AC:
1
AN:
1458074
Hom.:
0
Cov.:
32
AF XY:
0.00000138
AC XY:
1
AN XY:
725446
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:
0.00
Gnomad4 NFE exome
AF:
9.00e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

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 submitterclinical testingAmbry GeneticsDec 14, 2021The c.145G>A (p.E49K) alteration is located in exon 1 (coding exon 1) of the TM9SF2 gene. This alteration results from a G to A substitution at nucleotide position 145, causing the glutamic acid (E) at amino acid position 49 to be replaced by a lysine (K). 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
0.072
BayesDel_addAF
Benign
-0.23
T
BayesDel_noAF
Benign
-0.56
CADD
Benign
16
DANN
Benign
0.95
DEOGEN2
Benign
0.030
T;T
Eigen
Benign
-0.91
Eigen_PC
Benign
-0.85
FATHMM_MKL
Benign
0.035
N
LIST_S2
Uncertain
0.86
.;D
M_CAP
Benign
0.015
T
MetaRNN
Benign
0.040
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.99
L;L
MutationTaster
Benign
1.0
N
PrimateAI
Uncertain
0.62
T
PROVEAN
Benign
-0.82
.;N
REVEL
Benign
0.024
Sift
Benign
0.79
.;T
Sift4G
Benign
0.88
.;T
Polyphen
0.0010
B;B
Vest4
0.21
MutPred
0.41
Gain of methylation at E49 (P = 0.0136);Gain of methylation at E49 (P = 0.0136);
MVP
0.068
MPC
0.79
ClinPred
0.043
T
GERP RS
3.2
Varity_R
0.079
gMVP
0.56

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.

Other links and lift over

dbSNP: rs1484119268; hg19: chr13-100154005; COSMIC: COSV63480891; COSMIC: COSV63480891; API