19-19270260-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001001524.3(TM6SF2):​c.314G>A​(p.Arg105His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000545 in 1,614,092 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00038 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00056 ( 0 hom. )

Consequence

TM6SF2
NM_001001524.3 missense

Scores

5
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.38
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 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.37524733).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TM6SF2NM_001001524.3 linkuse as main transcriptc.314G>A p.Arg105His missense_variant 4/10 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.314G>A p.Arg105His missense_variant 4/101 NM_001001524.3 ENSP00000374014.2 Q9BZW4-1

Frequencies

GnomAD3 genomes
AF:
0.000381
AC:
58
AN:
152248
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000169
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000458
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:
0.000647
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000257
AC:
64
AN:
249390
Hom.:
0
AF XY:
0.000222
AC XY:
30
AN XY:
135340
show subpopulations
Gnomad AFR exome
AF:
0.0000646
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000556
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.0000928
Gnomad NFE exome
AF:
0.000477
Gnomad OTH exome
AF:
0.000165
GnomAD4 exome
AF:
0.000562
AC:
821
AN:
1461844
Hom.:
0
Cov.:
35
AF XY:
0.000565
AC XY:
411
AN XY:
727230
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000894
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.0000464
Gnomad4 FIN exome
AF:
0.0000749
Gnomad4 NFE exome
AF:
0.000711
Gnomad4 OTH exome
AF:
0.000248
GnomAD4 genome
AF:
0.000381
AC:
58
AN:
152248
Hom.:
0
Cov.:
33
AF XY:
0.000350
AC XY:
26
AN XY:
74382
show subpopulations
Gnomad4 AFR
AF:
0.000169
Gnomad4 AMR
AF:
0.000458
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000647
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000499
Hom.:
0
Bravo
AF:
0.000348
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.000519
AC:
2
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000714
AC:
6
ExAC
AF:
0.000248
AC:
30
EpiCase
AF:
0.000327
EpiControl
AF:
0.000593

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 GeneticsSep 27, 2021The c.314G>A (p.R105H) alteration is located in exon 4 (coding exon 4) of the TM6SF2 gene. This alteration results from a G to A substitution at nucleotide position 314, causing the arginine (R) at amino acid position 105 to be replaced by a histidine (H). 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
0.12
BayesDel_addAF
Benign
-0.34
T
BayesDel_noAF
Benign
-0.38
CADD
Pathogenic
31
DANN
Benign
0.92
DEOGEN2
Benign
0.052
T
Eigen
Uncertain
0.45
Eigen_PC
Uncertain
0.40
FATHMM_MKL
Uncertain
0.86
D
LIST_S2
Uncertain
0.96
D
M_CAP
Benign
0.032
D
MetaRNN
Benign
0.38
T
MetaSVM
Benign
-0.90
T
MutationAssessor
Uncertain
2.4
M
PrimateAI
Benign
0.47
T
PROVEAN
Benign
-1.1
N
REVEL
Benign
0.096
Sift
Benign
0.082
T
Sift4G
Benign
0.13
T
Polyphen
1.0
D
Vest4
0.54
MVP
0.41
MPC
0.87
ClinPred
0.36
T
GERP RS
5.0
Varity_R
0.13
gMVP
0.52

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

LitVar

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

Other links and lift over

dbSNP: rs201138158; hg19: chr19-19381069; COSMIC: COSV66985027; COSMIC: COSV66985027; API