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GeneBe

19-16067683-A-T

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2

The NM_001145160.2(TPM4):​c.59A>T​(p.Asp20Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000855 in 1,613,666 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00045 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000048 ( 0 hom. )

Consequence

TPM4
NM_001145160.2 missense

Scores

4
6
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.08
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 -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.31250036).
BS2
High AC in GnomAd4 at 68 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TPM4NM_001145160.2 linkuse as main transcriptc.59A>T p.Asp20Val missense_variant 1/9
TPM4NM_001367836.1 linkuse as main transcriptc.-214A>T 5_prime_UTR_variant 1/9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TPM4ENST00000646974.2 linkuse as main transcriptc.59A>T p.Asp20Val missense_variant 1/9 P1P67936-2
TPM4ENST00000589897.1 linkuse as main transcriptc.59A>T p.Asp20Val missense_variant 2/34
TPM4ENST00000647464.2 linkuse as main transcript upstream_gene_variant
TPM4ENST00000586499.6 linkuse as main transcript upstream_gene_variant 4

Frequencies

GnomAD3 genomes
AF:
0.000434
AC:
66
AN:
152202
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00140
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
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:
0.000128
AC:
32
AN:
250440
Hom.:
0
AF XY:
0.0000812
AC XY:
11
AN XY:
135532
show subpopulations
Gnomad AFR exome
AF:
0.00149
Gnomad AMR exome
AF:
0.000204
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:
0.00000881
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000479
AC:
70
AN:
1461346
Hom.:
0
Cov.:
31
AF XY:
0.0000481
AC XY:
35
AN XY:
727004
show subpopulations
Gnomad4 AFR exome
AF:
0.00132
Gnomad4 AMR exome
AF:
0.000224
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:
0.00000450
Gnomad4 OTH exome
AF:
0.000182
GnomAD4 genome
AF:
0.000446
AC:
68
AN:
152320
Hom.:
0
Cov.:
32
AF XY:
0.000403
AC XY:
30
AN XY:
74480
show subpopulations
Gnomad4 AFR
AF:
0.00144
Gnomad4 AMR
AF:
0.000327
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:
0.000170
Hom.:
0
Bravo
AF:
0.000544
ESP6500AA
AF:
0.00159
AC:
5
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000148
AC:
18
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

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

Submissions by phenotype

Hereditary breast ovarian cancer syndrome Uncertain:1
Uncertain significance, criteria provided, single submitterresearchMolecular Oncology Research Center, Barretos Cancer HospitalAug 01, 2020- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.11
T
BayesDel_noAF
Uncertain
0.050
CADD
Pathogenic
26
DANN
Uncertain
0.99
Eigen
Uncertain
0.59
Eigen_PC
Uncertain
0.53
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Pathogenic
1.0
D;.;D
M_CAP
Pathogenic
0.61
D
MetaRNN
Benign
0.31
T;T;T
MetaSVM
Pathogenic
0.87
D
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.68
T
Sift4G
Pathogenic
0.0
D;D;.
Polyphen
1.0
.;D;D
Vest4
0.69
MVP
0.90
ClinPred
0.63
D
GERP RS
3.8
gMVP
0.61

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: rs373696275; hg19: chr19-16178493; API