19-16088031-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PP3_ModerateBS2

The NM_003290.3(TPM4):​c.389C>T​(p.Ala130Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000129 in 1,610,762 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00014 ( 0 hom. )

Consequence

TPM4
NM_003290.3 missense

Scores

14
3
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.81
Variant links:
Genes affected
TPM4 (HGNC:12013): (tropomyosin 4) This gene encodes a member of the tropomyosin family of actin-binding proteins involved in the contractile system of striated and smooth muscles and the cytoskeleton of non-muscle cells. Tropomyosins are dimers of coiled-coil proteins that polymerize end-to-end along the major groove in most actin filaments. They provide stability to the filaments and regulate access of other actin-binding proteins. In muscle cells, they regulate muscle contraction by controlling the binding of myosin heads to the actin filament. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2009]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.899
BS2
High AC in GnomAd4 at 6 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TPM4NM_003290.3 linkc.389C>T p.Ala130Val missense_variant Exon 4 of 8 ENST00000643579.2 NP_003281.1 P67936-1V9HW56

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TPM4ENST00000643579.2 linkc.389C>T p.Ala130Val missense_variant Exon 4 of 8 NM_003290.3 ENSP00000495347.1 P67936-1

Frequencies

GnomAD3 genomes
AF:
0.0000395
AC:
6
AN:
152048
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
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:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000164
AC:
4
AN:
244028
Hom.:
0
AF XY:
0.0000304
AC XY:
4
AN XY:
131732
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:
0.0000361
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000138
AC:
201
AN:
1458714
Hom.:
0
Cov.:
30
AF XY:
0.000130
AC XY:
94
AN XY:
725296
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:
0.000178
Gnomad4 OTH exome
AF:
0.0000498
GnomAD4 genome
AF:
0.0000395
AC:
6
AN:
152048
Hom.:
0
Cov.:
32
AF XY:
0.0000404
AC XY:
3
AN XY:
74270
show subpopulations
Gnomad4 AFR
AF:
0.0000242
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000735
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000164
Hom.:
0
Bravo
AF:
0.0000642
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Oct 25, 2023
Mayo Clinic Laboratories, Mayo Clinic
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

PP3 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.99
BayesDel_addAF
Pathogenic
0.24
D
BayesDel_noAF
Pathogenic
0.21
CADD
Pathogenic
30
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.93
.;.;.;.;.;.;D;D;D;.;D
Eigen
Pathogenic
0.84
Eigen_PC
Pathogenic
0.75
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Benign
0.86
.;D;.;.;.;.;.;T;.;T;.
M_CAP
Pathogenic
0.38
D
MetaRNN
Pathogenic
0.90
D;D;D;D;D;D;D;D;D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
4.6
.;.;.;.;.;.;H;H;.;.;.
PrimateAI
Pathogenic
0.87
D
PROVEAN
Uncertain
-3.5
D;.;.;.;.;.;D;.;.;.;.
REVEL
Pathogenic
0.90
Sift
Pathogenic
0.0
D;.;.;.;.;.;D;.;.;.;.
Sift4G
Uncertain
0.015
D;.;D;.;D;T;D;.;D;.;D
Polyphen
0.76
P;P;.;.;.;.;P;P;.;.;.
Vest4
0.78
MVP
0.99
ClinPred
0.99
D
GERP RS
4.8
Varity_R
0.83
gMVP
0.49

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
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: rs371728238; hg19: chr19-16198841; API