Variant 1-24063216-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The ENST00000374434.4(MYOM3):c.3680T>C(p.Leu1227Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000411 in 1,461,614 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

MYOM3
ENST00000374434.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.96

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]

MYOM3 links:

(HGNC:):

links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.896

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MYOM3	NM_152372.4 linkuse as main transcript	c.3680T>C	p.Leu1227Pro	missense_variant	32/37	ENST00000374434.4	NP_689585.3
LOC107984931	XR_001737929.1 linkuse as main transcript	n.276-831A>G		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MYOM3	ENST00000374434.4 linkuse as main transcript	c.3680T>C	p.Leu1227Pro	missense_variant	32/37	1	NM_152372.4	ENSP00000363557	P1	Q5VTT5-1
	ENST00000439239.2 linkuse as main transcript	n.178-831A>G		intron_variant, non_coding_transcript_variant		5
MYOM3	ENST00000338909.9 linkuse as main transcript	c.359T>C	p.Leu120Pro	missense_variant	5/10	2		ENSP00000342689		Q5VTT5-3
MYOM3	ENST00000448831.1 linkuse as main transcript	n.188-6890T>C		intron_variant, non_coding_transcript_variant		3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000401

AC:

AN:

249536

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135388

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

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:

0.00

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.00000411

AC:

AN:

1461614

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727078

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000112

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:

0.00

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000936

Hom.:

Bravo

AF:

0.0000151

ExAC

AF:

0.00000828

AC:

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 submitter

clinical testing

Ambry Genetics

Nov 13, 2023

The c.3680T>C (p.L1227P) alteration is located in exon 32 (coding exon 31) of the MYOM3 gene. This alteration results from a T to C substitution at nucleotide position 3680, causing the leucine (L) at amino acid position 1227 to be replaced by a proline (P). 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

Pathogenic

0.89

BayesDel_addAF

Pathogenic

0.35

BayesDel_noAF

Pathogenic

0.26

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.061

.;T

Eigen

Pathogenic

0.69

Eigen_PC

Pathogenic

0.69

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Benign

0.80

T;T

M_CAP

Benign

0.056

MetaRNN

Pathogenic

0.90

D;D

MetaSVM

Benign

-0.43

MutationAssessor

Uncertain

2.8

.;M

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.76

PROVEAN

Pathogenic

-5.9

D;D

REVEL

Pathogenic

0.66

Sift

Pathogenic

0.0

D;D

Sift4G

Benign

0.086

T;T

Polyphen

1.0

D;D

Vest4

0.93

MutPred

0.72

.;Gain of disorder (P = 0.006);

MVP

0.49

MPC

0.28

ClinPred

0.99

GERP RS

5.4

Varity_R

0.77

gMVP

0.91

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over