3-69119747-G-C

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 2P and 9B. PM2BP4_StrongBP6BS1

The NM_198271.5(LMOD3):ā€‹c.608C>Gā€‹(p.Pro203Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000607 in 1,613,552 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: š‘“ 0.000026 ( 0 hom., cov: 31)
Exomes š‘“: 0.000064 ( 0 hom. )

Consequence

LMOD3
NM_198271.5 missense

Scores

4
15

Clinical Significance

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

Conservation

PhyloP100: 1.29
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.010020822).
BP6
Variant 3-69119747-G-C is Benign according to our data. Variant chr3-69119747-G-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 475329.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.
BS1
Variant frequency is greater than expected in population amr. gnomad4_exome allele frequency = 0.0000643 (94/1461480) while in subpopulation AMR AF= 0.00208 (93/44710). AF 95% confidence interval is 0.00174. There are 0 homozygotes in gnomad4_exome. There are 38 alleles in male gnomad4_exome subpopulation. Median coverage is 33. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
LMOD3NM_198271.5 linkuse as main transcriptc.608C>G p.Pro203Arg missense_variant 2/3 ENST00000420581.7 NP_938012.2
LMOD3NM_001304418.3 linkuse as main transcriptc.608C>G p.Pro203Arg missense_variant 3/4 NP_001291347.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
LMOD3ENST00000420581.7 linkuse as main transcriptc.608C>G p.Pro203Arg missense_variant 2/31 NM_198271.5 ENSP00000414670 P1Q0VAK6-1
LMOD3ENST00000475434.1 linkuse as main transcriptc.608C>G p.Pro203Arg missense_variant 3/45 ENSP00000418645 P1Q0VAK6-1
LMOD3ENST00000489031.5 linkuse as main transcriptc.608C>G p.Pro203Arg missense_variant 3/42 ENSP00000417210 P1Q0VAK6-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152072
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
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:
0.00
GnomAD3 exomes
AF:
0.000314
AC:
78
AN:
248112
Hom.:
0
AF XY:
0.000223
AC XY:
30
AN XY:
134660
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00226
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:
0.00
GnomAD4 exome
AF:
0.0000643
AC:
94
AN:
1461480
Hom.:
0
Cov.:
33
AF XY:
0.0000523
AC XY:
38
AN XY:
727002
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00208
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
AF:
0.0000263
AC:
4
AN:
152072
Hom.:
0
Cov.:
31
AF XY:
0.0000404
AC XY:
3
AN XY:
74288
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000262
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:
0.00
Bravo
AF:
0.000128
ExAC
AF:
0.000256
AC:
31

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)May 10, 2017- -
Nemaline myopathy 10 Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 04, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.079
BayesDel_addAF
Benign
-0.23
T
BayesDel_noAF
Benign
-0.11
CADD
Benign
5.9
DANN
Benign
0.96
DEOGEN2
Benign
0.0070
T;T;T
Eigen
Benign
-0.62
Eigen_PC
Benign
-0.56
FATHMM_MKL
Uncertain
0.84
D
LIST_S2
Benign
0.64
.;.;T
M_CAP
Benign
0.073
D
MetaRNN
Benign
0.010
T;T;T
MetaSVM
Uncertain
-0.27
T
MutationAssessor
Uncertain
2.6
M;M;M
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.23
T
PROVEAN
Benign
-0.78
N;N;N
REVEL
Benign
0.17
Sift
Uncertain
0.017
D;D;D
Sift4G
Benign
0.30
T;T;T
Polyphen
0.11
B;B;B
Vest4
0.10
MutPred
0.32
Gain of MoRF binding (P = 0.0251);Gain of MoRF binding (P = 0.0251);Gain of MoRF binding (P = 0.0251);
MVP
0.80
MPC
0.020
ClinPred
0.041
T
GERP RS
2.5
Varity_R
0.077
gMVP
0.14

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: rs775919681; hg19: chr3-69168898; API