rs28372838

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_152263.4(TPM3):​c.495+28G>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.13 in 1,613,452 control chromosomes in the GnomAD database, including 15,909 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.15 ( 2166 hom., cov: 32)
Exomes 𝑓: 0.13 ( 13743 hom. )

Consequence

TPM3
NM_152263.4 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.405

Publications

7 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 -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.9).
BP6
Variant 1-154173056-C-G is Benign according to our data. Variant chr1-154173056-C-G is described in ClinVar as Benign. ClinVar VariationId is 262624.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.355 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.495+28G>C
intron
N/ANP_689476.2P06753-1
TPM3
NM_001364679.2
c.495+28G>C
intron
N/ANP_001351608.1
TPM3
NM_001364680.2
c.495+28G>C
intron
N/ANP_001351609.1J3KN67

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TPM3
ENST00000651641.1
MANE Select
c.495+28G>C
intron
N/AENSP00000498577.1P06753-1
TPM3
ENST00000368530.7
TSL:1
c.495+28G>C
intron
N/AENSP00000357516.3A0A2R2Y2Q3
TPM3
ENST00000330188.13
TSL:1
c.384+28G>C
intron
N/AENSP00000339035.7P06753-5

Frequencies

GnomAD3 genomes
AF:
0.153
AC:
23300
AN:
152030
Hom.:
2165
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.221
Gnomad AMI
AF:
0.0636
Gnomad AMR
AF:
0.0938
Gnomad ASJ
AF:
0.0695
Gnomad EAS
AF:
0.368
Gnomad SAS
AF:
0.135
Gnomad FIN
AF:
0.194
Gnomad MID
AF:
0.149
Gnomad NFE
AF:
0.110
Gnomad OTH
AF:
0.129
GnomAD2 exomes
AF:
0.136
AC:
34239
AN:
251476
AF XY:
0.134
show subpopulations
Gnomad AFR exome
AF:
0.230
Gnomad AMR exome
AF:
0.0566
Gnomad ASJ exome
AF:
0.0720
Gnomad EAS exome
AF:
0.373
Gnomad FIN exome
AF:
0.184
Gnomad NFE exome
AF:
0.108
Gnomad OTH exome
AF:
0.123
GnomAD4 exome
AF:
0.128
AC:
186581
AN:
1461304
Hom.:
13743
Cov.:
32
AF XY:
0.127
AC XY:
92254
AN XY:
727008
show subpopulations
African (AFR)
AF:
0.221
AC:
7390
AN:
33460
American (AMR)
AF:
0.0604
AC:
2701
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.0707
AC:
1847
AN:
26132
East Asian (EAS)
AF:
0.381
AC:
15119
AN:
39696
South Asian (SAS)
AF:
0.129
AC:
11122
AN:
86244
European-Finnish (FIN)
AF:
0.176
AC:
9424
AN:
53418
Middle Eastern (MID)
AF:
0.107
AC:
616
AN:
5766
European-Non Finnish (NFE)
AF:
0.117
AC:
130223
AN:
1111492
Other (OTH)
AF:
0.135
AC:
8139
AN:
60372
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.496
Heterozygous variant carriers
0
8845
17690
26535
35380
44225
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
5050
10100
15150
20200
25250
<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:
0.153
AC:
23316
AN:
152148
Hom.:
2166
Cov.:
32
AF XY:
0.155
AC XY:
11553
AN XY:
74370
show subpopulations
African (AFR)
AF:
0.221
AC:
9171
AN:
41498
American (AMR)
AF:
0.0936
AC:
1431
AN:
15294
Ashkenazi Jewish (ASJ)
AF:
0.0695
AC:
241
AN:
3468
East Asian (EAS)
AF:
0.369
AC:
1906
AN:
5168
South Asian (SAS)
AF:
0.133
AC:
644
AN:
4826
European-Finnish (FIN)
AF:
0.194
AC:
2048
AN:
10576
Middle Eastern (MID)
AF:
0.150
AC:
44
AN:
294
European-Non Finnish (NFE)
AF:
0.110
AC:
7496
AN:
68000
Other (OTH)
AF:
0.131
AC:
277
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.504
Heterozygous variant carriers
0
977
1955
2932
3910
4887
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
254
508
762
1016
1270
<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:
0.0587
Hom.:
89
Bravo
AF:
0.149

ClinVar

ClinVar submissions
Significance:Benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
2
not provided (2)
-
-
1
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.90
CADD
Benign
0.079
DANN
Benign
0.40
PhyloP100
-0.41
Mutation Taster
=100/0
polymorphism (auto)

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

Other links and lift over

dbSNP: rs28372838; hg19: chr1-154145532; COSMIC: COSV55139358; COSMIC: COSV55139358; API