1-24057624-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The ENST00000374434.4(MYOM3):​c.4054C>A​(p.Leu1352Met) variant causes a missense change. The variant allele was found at a frequency of 0.0000657 in 1,613,644 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000065 ( 0 hom. )

Consequence

MYOM3
ENST00000374434.4 missense

Scores

2
7
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.98
Variant links:
Genes affected
MYOM3 (HGNC:26679): (myomesin 3) Predicted to enable actin filament binding activity and protein homodimerization activity. Predicted to be involved in muscle contraction. Predicted to be active in M band. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MYOM3NM_152372.4 linkuse as main transcriptc.4054C>A p.Leu1352Met missense_variant 37/37 ENST00000374434.4 NP_689585.3
LOC107984931XR_001737929.1 linkuse as main transcriptn.275+1710G>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MYOM3ENST00000374434.4 linkuse as main transcriptc.4054C>A p.Leu1352Met missense_variant 37/371 NM_152372.4 ENSP00000363557 P1Q5VTT5-1
ENST00000439239.2 linkuse as main transcriptn.178-6423G>T intron_variant, non_coding_transcript_variant 5
MYOM3ENST00000338909.9 linkuse as main transcriptc.733C>A p.Leu245Met missense_variant 10/102 ENSP00000342689 Q5VTT5-3
MYOM3ENST00000448831.1 linkuse as main transcriptn.188-1298C>A intron_variant, non_coding_transcript_variant 3

Frequencies

GnomAD3 genomes
AF:
0.0000723
AC:
11
AN:
152154
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.00316
Gnomad NFE
AF:
0.000132
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000767
AC:
19
AN:
247828
Hom.:
0
AF XY:
0.0000892
AC XY:
12
AN XY:
134544
show subpopulations
Gnomad AFR exome
AF:
0.000129
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000125
Gnomad OTH exome
AF:
0.000165
GnomAD4 exome
AF:
0.0000650
AC:
95
AN:
1461372
Hom.:
0
Cov.:
33
AF XY:
0.0000770
AC XY:
56
AN XY:
726896
show subpopulations
Gnomad4 AFR exome
AF:
0.000179
Gnomad4 AMR exome
AF:
0.0000447
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000696
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000477
Gnomad4 OTH exome
AF:
0.000166
GnomAD4 genome
AF:
0.0000722
AC:
11
AN:
152272
Hom.:
0
Cov.:
32
AF XY:
0.0000537
AC XY:
4
AN XY:
74446
show subpopulations
Gnomad4 AFR
AF:
0.0000241
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:
0.000132
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000157
Hom.:
0
Bravo
AF:
0.0000831
ESP6500AA
AF:
0.000257
AC:
1
ESP6500EA
AF:
0.000241
AC:
2
ExAC
AF:
0.0000745
AC:
9
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.000382
EpiControl
AF:
0.000415

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsMay 30, 2023The c.4054C>A (p.L1352M) alteration is located in exon 37 (coding exon 36) of the MYOM3 gene. This alteration results from a C to A substitution at nucleotide position 4054, causing the leucine (L) at amino acid position 1352 to be replaced by a methionine (M). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.41
BayesDel_addAF
Benign
-0.079
T
BayesDel_noAF
Benign
-0.11
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.054
.;T
Eigen
Pathogenic
0.68
Eigen_PC
Uncertain
0.65
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.73
T;T
M_CAP
Benign
0.016
T
MetaRNN
Uncertain
0.53
D;D
MetaSVM
Benign
-0.51
T
MutationAssessor
Uncertain
2.5
.;M
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.60
T
PROVEAN
Benign
-1.9
N;N
REVEL
Benign
0.19
Sift
Uncertain
0.0030
D;D
Sift4G
Benign
0.17
T;D
Polyphen
0.97
D;D
Vest4
0.59
MVP
0.50
MPC
0.46
ClinPred
0.29
T
GERP RS
4.7
Varity_R
0.62
gMVP
0.65

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs201441408; hg19: chr1-24384114; API