NM_198271.5:c.1667C>A

Variant names:

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_198271.5(LMOD3):c.1667C>A(p.Pro556Gln) variant causes a missense change. The variant allele was found at a frequency of 0.000711 in 1,602,286 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P556R) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00048 ( 0 hom., cov: 31)

Exomes 𝑓: 0.00074 ( 6 hom. )

Consequence

LMOD3
NM_198271.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: 6.79

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 Benign. Variant got -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.009101003).

BP6

Variant 3-69109111-G-T is Benign according to our data. Variant chr3-69109111-G-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 218866.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Uncertain_significance=1}.

BS1

Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.00048 (73/152108) while in subpopulation SAS AF= 0.00705 (34/4820). AF 95% confidence interval is 0.00519. There are 0 homozygotes in gnomad4. There are 44 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.

BS2

High Homozygotes in GnomAdExome4 at 6 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LMOD3	NM_198271.5 link	c.1667C>A	p.Pro556Gln	missense_variant	Exon 3 of 3	ENST00000420581.7	NP_938012.2	Q0VAK6-1
LMOD3	NM_001304418.3 link	c.1667C>A	p.Pro556Gln	missense_variant	Exon 4 of 4		NP_001291347.1	Q0VAK6-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
LMOD3	ENST00000420581.7 link	c.1667C>A	p.Pro556Gln	missense_variant	Exon 3 of 3	1	NM_198271.5	ENSP00000414670.3	Q0VAK6-1
LMOD3	ENST00000475434.1 link	c.1667C>A	p.Pro556Gln	missense_variant	Exon 4 of 4	5		ENSP00000418645.1	Q0VAK6-1
LMOD3	ENST00000489031.5 link	c.1667C>A	p.Pro556Gln	missense_variant	Exon 4 of 4	2		ENSP00000417210.1	Q0VAK6-1

Frequencies

GnomAD3 genomes

AF:

0.000487

AC:

AN:

151990

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000484

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00726

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000485

Gnomad OTH

AF:

0.000956

GnomAD3 exomes

AF:

0.00110

AC:

251

AN:

227842

Hom.:

AF XY:

0.00138

AC XY:

170

AN XY:

123072

show subpopulations

Gnomad AFR exome

AF:

0.0000709

Gnomad AMR exome

AF:

0.000245

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00660

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000534

Gnomad OTH exome

AF:

0.000705

GnomAD4 exome

AF:

0.000736

AC:

1067

AN:

1450178

Hom.:

Cov.:

AF XY:

0.000928

AC XY:

668

AN XY:

720012

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000208

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00733

Gnomad4 FIN exome

AF:

0.0000190

Gnomad4 NFE exome

AF:

0.000325

Gnomad4 OTH exome

AF:

0.00102

GnomAD4 genome

AF:

0.000480

AC:

AN:

152108

Hom.:

Cov.:

AF XY:

0.000592

AC XY:

AN XY:

74318

show subpopulations

Gnomad4 AFR

AF:

0.0000482

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00705

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000485

Gnomad4 OTH

AF:

0.000946

Alfa

AF:

0.000455

Hom.:

Bravo

AF:

0.000363

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.000267

AC:

ESP6500EA

AF:

0.000243

AC:

ExAC

AF:

0.00112

AC:

135

Asia WGS

AF:

0.00289

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Nemaline myopathy 10

Benign:2

Dec 29, 2023

Revvity Omics, Revvity

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jan 27, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not specified

Uncertain:1

Apr 12, 2015

Genomic Diagnostic Laboratory, Division of Genomic Diagnostics, Children's Hospital of Philadelphia

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided

Benign:1

Dec 01, 2022

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

LMOD3: BS1 -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.65

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.12

CADD

Uncertain

DANN

Benign

0.97

DEOGEN2

Benign

0.054

T;T;T

Eigen

Uncertain

0.31

Eigen_PC

Uncertain

0.39

FATHMM_MKL

Uncertain

0.95

LIST_S2

Benign

0.63

.;.;T

MetaRNN

Benign

0.0091

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.7

L;L;L

PrimateAI

Uncertain

0.66

PROVEAN

Pathogenic

-5.6

D;D;D

REVEL

Benign

0.23

Sift

Uncertain

0.0010

D;D;D

Sift4G

Uncertain

0.045

D;D;D

Polyphen

0.62

P;P;P

Vest4

0.75

MVP

0.44

MPC

0.081

ClinPred

0.12

GERP RS

5.5

Varity_R

0.59

gMVP

0.40

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