Variant chr12-65169598-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PVS1PM2

The NM_014319.5(LEMD3):c.2T>C(p.Met1?) variant causes a start lost change. The variant allele was found at a frequency of 0.000000697 in 1,435,572 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: 7.0e-7 ( 0 hom. )

Consequence

LEMD3
NM_014319.5 start_lost

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.33

Variant links:

Genes affected

LEMD3 (HGNC:28887): (LEM domain containing 3) This locus encodes a LEM domain-containing protein. The encoded protein functions to antagonize transforming growth factor-beta signaling at the inner nuclear membrane. Two transcript variants encoding different isoforms have been found for this gene. Mutations in this gene have been associated with osteopoikilosis, Buschke-Ollendorff syndrome and melorheostosis.[provided by RefSeq, Nov 2009]

LEMD3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 10 ACMG points.

PVS1

Start lost variant, no new inframe start found.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
LEMD3	NM_014319.5 linkuse as main transcript	c.2T>C	p.Met1?	start_lost	1/13	ENST00000308330.3
LEMD3	NM_001167614.2 linkuse as main transcript	c.2T>C	p.Met1?	start_lost	1/13

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
LEMD3	ENST00000308330.3 linkuse as main transcript	c.2T>C	p.Met1?	start_lost	1/13	1	NM_014319.5	P1
LEMD3	ENST00000541171.1 linkuse as main transcript	n.16T>C		non_coding_transcript_exon_variant	1/2	2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.97e-7

AC:

AN:

1435572

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

711742

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

9.08e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Nov 17, 2023

This sequence change affects the initiator methionine of the LEMD3 mRNA. The next in-frame methionine is located at codon 89. This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with LEMD3-related conditions. Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. 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

BayesDel_addAF

Pathogenic

0.63

BayesDel_noAF

Uncertain

0.020

CADD

Uncertain

DANN

Benign

0.97

DEOGEN2

Benign

0.20

Eigen

Uncertain

0.40

Eigen_PC

Uncertain

0.39

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.90

M_CAP

Pathogenic

0.80

MetaRNN

Pathogenic

0.99

MetaSVM

Benign

-0.94

MutationTaster

Benign

1.0

PROVEAN

Benign

-0.50

REVEL

Uncertain

0.30

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

0.93

Vest4

0.85

MutPred

0.89

Gain of glycosylation at M1 (P = 0.0136);

MVP

0.72

ClinPred

1.0

GERP RS

3.9

Varity_R

0.95

gMVP

0.31

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

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over