rs201771939

Positions:

chr3-69118779-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_198271.5(LMOD3):c.1576C>T(p.Pro526Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000267 in 1,611,854 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 30)

Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

LMOD3
NM_198271.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.90

Variant links:

Genes affected

LMOD3 (HGNC:6649): (leiomodin 3) The protein encoded by this gene is a member of the leiomodin family of proteins. This protein contains three actin-binding domains, a tropomyosin domain, a leucine-rich repeat domain, and a Wiskott-Aldrich syndrome protein homology 2 domain (WH2). Localization of this protein to the pointed ends of thin filaments has been observed, and there is evidence that this protein acts as a catalyst of actin nucleation, and is important to the organization of sarcomeric thin filaments in skeletal muscles. Mutations in this gene have been associated as one cause of Nemaline myopathy, as other genes have also been linked to this disorder. Nemaline myopathy is a disorder characterized by nonprogressive generalized muscle weakness and protein inclusions (nemaline bodies) in skeletal myofibers. Patients with mutations in this gene often present with a severe congenital form of the disorder. [provided by RefSeq, Jan 2015]

LMOD3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.06163284).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
LMOD3	NM_198271.5 linkuse as main transcript	c.1576C>T	p.Pro526Ser	missense_variant	2/3	ENST00000420581.7
LMOD3	NM_001304418.3 linkuse as main transcript	c.1576C>T	p.Pro526Ser	missense_variant	3/4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
LMOD3	ENST00000420581.7 linkuse as main transcript	c.1576C>T	p.Pro526Ser	missense_variant	2/3	1	NM_198271.5	P1	Q0VAK6-1
LMOD3	ENST00000475434.1 linkuse as main transcript	c.1576C>T	p.Pro526Ser	missense_variant	3/4	5		P1	Q0VAK6-1
LMOD3	ENST00000489031.5 linkuse as main transcript	c.1576C>T	p.Pro526Ser	missense_variant	3/4	2		P1	Q0VAK6-1

Frequencies

GnomAD3 genomes

AF:

0.000147

AC:

AN:

150104

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000467

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000134

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000491

GnomAD3 exomes

AF:

0.0000241

AC:

AN:

248968

Hom.:

AF XY:

0.0000296

AC XY:

AN XY:

135088

show subpopulations

Gnomad AFR exome

AF:

0.000194

Gnomad AMR exome

AF:

0.0000580

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000151

AC:

AN:

1461632

Hom.:

Cov.:

AF XY:

0.0000124

AC XY:

AN XY:

727102

show subpopulations

Gnomad4 AFR exome

AF:

0.000418

Gnomad4 AMR exome

AF:

0.000112

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.000140

AC:

AN:

150222

Hom.:

Cov.:

AF XY:

0.000150

AC XY:

AN XY:

73236

show subpopulations

Gnomad4 AFR

AF:

0.000441

Gnomad4 AMR

AF:

0.000134

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000486

Alfa

AF:

0.0000658

Hom.:

ESP6500AA

AF:

0.000250

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000414

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Nemaline myopathy 10

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Aug 31, 2022

This sequence change replaces proline, which is neutral and non-polar, with serine, which is neutral and polar, at codon 526 of the LMOD3 protein (p.Pro526Ser). This variant is present in population databases (rs201771939, gnomAD 0.04%). This variant has not been reported in the literature in individuals affected with LMOD3-related conditions. ClinVar contains an entry for this variant (Variation ID: 573278). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.25

BayesDel_addAF

Benign

-0.43

BayesDel_noAF

Benign

-0.49

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.041

T;T;T

Eigen

Uncertain

0.26

Eigen_PC

Uncertain

0.38

FATHMM_MKL

Uncertain

0.92

M_CAP

Benign

0.013

MetaRNN

Benign

0.062

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.1

M;M;M

MutationTaster

Benign

0.98

D;D;D

PrimateAI

Uncertain

0.51

PROVEAN

Benign

-1.3

N;N;N

REVEL

Benign

0.11

Sift

Uncertain

0.010

D;D;D

Sift4G

Benign

0.25

T;T;T

Polyphen

0.71

P;P;P

Vest4

0.40

MVP

0.32

MPC

0.061

ClinPred

0.11

GERP RS

5.8

Varity_R

0.075

gMVP

0.26

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