rs4845364

Variant summary

Our verdict is Benign. The variant received -18 ACMG points: 0P and 18B. BP4_ModerateBP6_Very_StrongBA1

The NM_152263.4(TPM3):​c.776-49T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.555 in 1,585,680 control chromosomes in the GnomAD database, including 252,552 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.63 ( 31391 hom., cov: 32)
Exomes 𝑓: 0.55 ( 221161 hom. )

Consequence

TPM3
NM_152263.4 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 1.10

Publications

23 publications found
Variant links:
Genes affected
TPM3 (HGNC:12012): (tropomyosin 3) This gene encodes a member of the tropomyosin family of actin-binding proteins. Tropomyosins are dimers of coiled-coil proteins that provide stability to actin filaments and regulate access of other actin-binding proteins. Mutations in this gene result in autosomal dominant nemaline myopathy and other muscle disorders. This locus is involved in translocations with other loci, including anaplastic lymphoma receptor tyrosine kinase (ALK) and neurotrophic tyrosine kinase receptor type 1 (NTRK1), which result in the formation of fusion proteins that act as oncogenes. There are numerous pseudogenes for this gene on different chromosomes. Alternative splicing results in multiple transcript variants. [provided by RefSeq, May 2013]
TPM3 Gene-Disease associations (from GenCC):
  • congenital myopathy 4A, autosomal dominant
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
  • TPM3-related myopathy
    Inheritance: SD, AD, AR Classification: DEFINITIVE Submitted by: ClinGen
  • congenital myopathy 4B, autosomal recessive
    Inheritance: SD, AR Classification: STRONG, MODERATE Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae), Ambry Genetics
  • congenital fiber-type disproportion myopathy
    Inheritance: SD, AD Classification: MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet
  • cap myopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • childhood-onset nemaline myopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • congenital generalized hypercontractile muscle stiffness syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • intermediate nemaline myopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -18 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.39).
BP6
Variant 1-154169432-A-G is Benign according to our data. Variant chr1-154169432-A-G is described in ClinVar as Benign. ClinVar VariationId is 262627.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.86 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_152263.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TPM3
NM_152263.4
MANE Select
c.776-49T>C
intron
N/ANP_689476.2P06753-1
TPM3
NM_001364679.2
c.775+968T>C
intron
N/ANP_001351608.1
TPM3
NM_001364680.2
c.775+968T>C
intron
N/ANP_001351609.1J3KN67

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TPM3
ENST00000651641.1
MANE Select
c.776-49T>C
intron
N/AENSP00000498577.1P06753-1
TPM3
ENST00000368530.7
TSL:1
c.776-49T>C
intron
N/AENSP00000357516.3A0A2R2Y2Q3
TPM3
ENST00000330188.13
TSL:1
c.664+968T>C
intron
N/AENSP00000339035.7P06753-5

Frequencies

GnomAD3 genomes
AF:
0.627
AC:
95320
AN:
151916
Hom.:
31338
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.804
Gnomad AMI
AF:
0.414
Gnomad AMR
AF:
0.679
Gnomad ASJ
AF:
0.523
Gnomad EAS
AF:
0.881
Gnomad SAS
AF:
0.666
Gnomad FIN
AF:
0.571
Gnomad MID
AF:
0.627
Gnomad NFE
AF:
0.503
Gnomad OTH
AF:
0.619
GnomAD2 exomes
AF:
0.608
AC:
152237
AN:
250250
AF XY:
0.602
show subpopulations
Gnomad AFR exome
AF:
0.813
Gnomad AMR exome
AF:
0.717
Gnomad ASJ exome
AF:
0.530
Gnomad EAS exome
AF:
0.869
Gnomad FIN exome
AF:
0.553
Gnomad NFE exome
AF:
0.512
Gnomad OTH exome
AF:
0.584
GnomAD4 exome
AF:
0.547
AC:
784078
AN:
1433646
Hom.:
221161
Cov.:
25
AF XY:
0.548
AC XY:
392075
AN XY:
715072
show subpopulations
African (AFR)
AF:
0.818
AC:
26995
AN:
32986
American (AMR)
AF:
0.716
AC:
31975
AN:
44632
Ashkenazi Jewish (ASJ)
AF:
0.521
AC:
13509
AN:
25942
East Asian (EAS)
AF:
0.920
AC:
36452
AN:
39614
South Asian (SAS)
AF:
0.641
AC:
54933
AN:
85694
European-Finnish (FIN)
AF:
0.553
AC:
29509
AN:
53334
Middle Eastern (MID)
AF:
0.624
AC:
3569
AN:
5718
European-Non Finnish (NFE)
AF:
0.509
AC:
552634
AN:
1086280
Other (OTH)
AF:
0.580
AC:
34502
AN:
59446
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.506
Heterozygous variant carriers
0
17823
35646
53470
71293
89116
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
16116
32232
48348
64464
80580
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.628
AC:
95428
AN:
152034
Hom.:
31391
Cov.:
32
AF XY:
0.633
AC XY:
46996
AN XY:
74296
show subpopulations
African (AFR)
AF:
0.805
AC:
33389
AN:
41484
American (AMR)
AF:
0.679
AC:
10369
AN:
15260
Ashkenazi Jewish (ASJ)
AF:
0.523
AC:
1815
AN:
3470
East Asian (EAS)
AF:
0.882
AC:
4563
AN:
5176
South Asian (SAS)
AF:
0.665
AC:
3205
AN:
4820
European-Finnish (FIN)
AF:
0.571
AC:
6015
AN:
10542
Middle Eastern (MID)
AF:
0.629
AC:
185
AN:
294
European-Non Finnish (NFE)
AF:
0.503
AC:
34209
AN:
67966
Other (OTH)
AF:
0.616
AC:
1301
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
1715
3429
5144
6858
8573
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
766
1532
2298
3064
3830
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.545
Hom.:
44207
Bravo
AF:
0.647
Asia WGS
AF:
0.753
AC:
2618
AN:
3478

ClinVar

ClinVar submissions
Significance:Benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
2
not provided (2)
-
-
1
Congenital myopathy 4B, autosomal recessive (1)
-
-
1
Congenital myopathy with fiber type disproportion (1)
-
-
1
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.39
CADD
Benign
18
DANN
Benign
0.82
PhyloP100
1.1
Mutation Taster
=100/0
polymorphism (auto)

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

Other links and lift over

dbSNP: rs4845364; hg19: chr1-154141908; API