19-19264845-A-G

Variant summary

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

The NM_001001524.3(TM6SF2):ā€‹c.953T>Cā€‹(p.Met318Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000164 in 1,586,594 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 (ā˜…).

Frequency

Genomes: š‘“ 0.000020 ( 0 hom., cov: 31)
Exomes š‘“: 0.000016 ( 0 hom. )

Consequence

TM6SF2
NM_001001524.3 missense

Scores

4
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.75
Variant links:
Genes affected
TM6SF2 (HGNC:11861): (transmembrane 6 superfamily member 2) Enables identical protein binding activity. Involved in regulation of lipid metabolic process. Located in endoplasmic reticulum membrane and endoplasmic reticulum-Golgi intermediate compartment membrane. [provided by Alliance of Genome Resources, Apr 2022]

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=0.16309613).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TM6SF2NM_001001524.3 linkuse as main transcriptc.953T>C p.Met318Thr missense_variant 10/10 ENST00000389363.5 NP_001001524.2 Q9BZW4-1Q8N8A7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TM6SF2ENST00000389363.5 linkuse as main transcriptc.953T>C p.Met318Thr missense_variant 10/101 NM_001001524.3 ENSP00000374014.2 Q9BZW4-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152080
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000242
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
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:
0.0000226
AC:
5
AN:
221258
Hom.:
0
AF XY:
0.00000827
AC XY:
1
AN XY:
120952
show subpopulations
Gnomad AFR exome
AF:
0.0000744
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000206
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000969
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000160
AC:
23
AN:
1434514
Hom.:
0
Cov.:
31
AF XY:
0.0000154
AC XY:
11
AN XY:
713206
show subpopulations
Gnomad4 AFR exome
AF:
0.000125
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000811
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000109
Gnomad4 OTH exome
AF:
0.0000675
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152080
Hom.:
0
Cov.:
31
AF XY:
0.0000135
AC XY:
1
AN XY:
74262
show subpopulations
Gnomad4 AFR
AF:
0.0000242
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000264
ExAC
AF:
0.0000330
AC:
4

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 GeneticsJun 29, 2023The c.953T>C (p.M318T) alteration is located in exon 10 (coding exon 10) of the TM6SF2 gene. This alteration results from a T to C substitution at nucleotide position 953, causing the methionine (M) at amino acid position 318 to be replaced by a threonine (T). 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
0.10
BayesDel_addAF
Benign
-0.39
T
BayesDel_noAF
Benign
-0.55
CADD
Benign
19
DANN
Benign
0.91
DEOGEN2
Benign
0.081
T
Eigen
Benign
-0.52
Eigen_PC
Benign
-0.43
FATHMM_MKL
Uncertain
0.86
D
LIST_S2
Benign
0.60
T
M_CAP
Benign
0.0064
T
MetaRNN
Benign
0.16
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.6
L
PrimateAI
Benign
0.45
T
PROVEAN
Uncertain
-3.0
D
REVEL
Benign
0.070
Sift
Uncertain
0.0020
D
Sift4G
Uncertain
0.0020
D
Polyphen
0.0
B
Vest4
0.28
MutPred
0.45
Gain of phosphorylation at M318 (P = 0.0349);
MVP
0.076
MPC
0.29
ClinPred
0.18
T
GERP RS
0.49
Varity_R
0.56
gMVP
0.71

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs748280759; hg19: chr19-19375654; API