chr9-35683152-G-A

Variant summary

Our verdict is Benign. Variant got -18 ACMG points: 0P and 18B. BP4_ModerateBP6_Very_StrongBA1

The NM_003289.4(TPM2):​c.*7C>T variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00675 in 1,553,072 control chromosomes in the GnomAD database, including 565 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.036 ( 305 hom., cov: 33)
Exomes 𝑓: 0.0036 ( 260 hom. )

Consequence

TPM2
NM_003289.4 3_prime_UTR

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 0.712
Variant links:
Genes affected
TPM2 (HGNC:12011): (tropomyosin 2) This gene encodes beta-tropomyosin, a member of the actin filament binding protein family, and mainly expressed in slow, type 1 muscle fibers. Mutations in this gene can alter the expression of other sarcomeric tropomyosin proteins, and cause cap disease, nemaline myopathy and distal arthrogryposis syndromes. Alternatively spliced transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Mar 2009]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -18 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.32).
BP6
Variant 9-35683152-G-A is Benign according to our data. Variant chr9-35683152-G-A is described in ClinVar as [Benign]. Clinvar id is 94121.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr9-35683152-G-A is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.121 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TPM2NM_003289.4 linkuse as main transcriptc.*7C>T 3_prime_UTR_variant 9/9 ENST00000645482.3
TPM2NM_001301227.2 linkuse as main transcriptc.*7C>T 3_prime_UTR_variant 9/9
TPM2NM_001301226.2 linkuse as main transcriptc.773-989C>T intron_variant
TPM2NM_213674.1 linkuse as main transcriptc.773-989C>T intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TPM2ENST00000645482.3 linkuse as main transcriptc.*7C>T 3_prime_UTR_variant 9/9 NM_003289.4 A1P07951-1

Frequencies

GnomAD3 genomes
AF:
0.0356
AC:
5421
AN:
152150
Hom.:
303
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.123
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0154
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000621
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000250
Gnomad OTH
AF:
0.0263
GnomAD3 exomes
AF:
0.00829
AC:
1320
AN:
159324
Hom.:
71
AF XY:
0.00604
AC XY:
506
AN XY:
83826
show subpopulations
Gnomad AFR exome
AF:
0.125
Gnomad AMR exome
AF:
0.00614
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000868
Gnomad SAS exome
AF:
0.000304
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000226
Gnomad OTH exome
AF:
0.00464
GnomAD4 exome
AF:
0.00360
AC:
5038
AN:
1400806
Hom.:
260
Cov.:
33
AF XY:
0.00307
AC XY:
2120
AN XY:
691070
show subpopulations
Gnomad4 AFR exome
AF:
0.124
Gnomad4 AMR exome
AF:
0.00698
Gnomad4 ASJ exome
AF:
0.0000396
Gnomad4 EAS exome
AF:
0.0000279
Gnomad4 SAS exome
AF:
0.000390
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000204
Gnomad4 OTH exome
AF:
0.00959
GnomAD4 genome
AF:
0.0358
AC:
5444
AN:
152266
Hom.:
305
Cov.:
33
AF XY:
0.0338
AC XY:
2517
AN XY:
74450
show subpopulations
Gnomad4 AFR
AF:
0.124
Gnomad4 AMR
AF:
0.0154
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000621
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000250
Gnomad4 OTH
AF:
0.0260
Alfa
AF:
0.0108
Hom.:
37
Bravo
AF:
0.0407
Asia WGS
AF:
0.00779
AC:
28
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:3
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Benign, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Jan 29, 2013- -
Benign, criteria provided, single submitterclinical testingGeneDxFeb 26, 2016This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Arthrogryposis, distal, type 1A Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 12, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
not provided Benign:1
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Congenital myopathy 23 Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 12, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.32
CADD
Benign
6.5
DANN
Benign
0.84

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: rs79882576; hg19: chr9-35683149; API