Variant chr9-127502809-CTGCTGCCAGCAG-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PM1PM2PM4PP5_Very_Strong

The NM_001005373.4(LRSAM1):c.2093_2104delAGTGCTGCCAGC(p.Gln698_Gln701del) variant causes a disruptive inframe deletion change. The variant allele was found at a frequency of 0.00000186 in 1,611,934 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

LRSAM1
NM_001005373.4 disruptive_inframe_deletion

Scores

Not classified

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:3

Conservation

PhyloP100: 7.10

Variant links:

Genes affected

LRSAM1 (HGNC:25135): (leucine rich repeat and sterile alpha motif containing 1) This gene encodes a ring finger protein involved in a variety of functions, including regulation of signaling pathways and cell adhesion, mediation of self-ubiquitylation, and involvement in cargo sorting during receptor endocytosis. Mutations in this gene have been associated with Charcot-Marie-Tooth disease. Multiple transcript variants encoding different isoforms have been identified for this gene. [provided by RefSeq, Jan 2012]

LRSAM1 links:

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 14 ACMG points.

PM1

In a zinc_finger_region RING-type (size 35) in uniprot entity LRSM1_HUMAN there are 7 pathogenic changes around while only 0 benign (100%) in NM_001005373.4

PM2

Very rare variant in population databases, with high coverage;

PM4

Nonframeshift variant in NON repetitive region in NM_001005373.4.

PP5

Variant 9-127502809-CTGCTGCCAGCAG-C is Pathogenic according to our data. Variant chr9-127502809-CTGCTGCCAGCAG-C is described in ClinVar as [Pathogenic]. Clinvar id is 472799.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LRSAM1	NM_001005373.4 link	c.2093_2104delAGTGCTGCCAGC	p.Gln698_Gln701del	disruptive_inframe_deletion	Exon 26 of 26	ENST00000300417.11	NP_001005373.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LRSAM1	ENST00000300417.11 link	c.2093_2104delAGTGCTGCCAGC	p.Gln698_Gln701del	disruptive_inframe_deletion	Exon 26 of 26	1	NM_001005373.4	ENSP00000300417.6		Q6UWE0-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152148

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

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

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1459786

Hom.:

AF XY:

0.00000275

AC XY:

AN XY:

726220

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:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152148

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74338

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Charcot-Marie-Tooth disease axonal type 2P

Pathogenic:2

Pathogenic, no assertion criteria provided	clinical testing	Biochimie - Maladies Neurologiques Hereditaires, Hospices Civils de Lyon	Jun 29, 2018	- -
Pathogenic, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Nov 11, 2024	This variant, c.2093_2104del, results in the deletion of 4 amino acid(s) of the LRSAM1 protein (p.Gln698_Gln701del), but otherwise preserves the integrity of the reading frame. This variant is not present in population databases (gnomAD no frequency). This variant has been observed in individuals with autosomal dominant Charcot-Marie-Tooth disease (PMID: 30996334). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 472799). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. For these reasons, this variant has been classified as Pathogenic. -

Inborn genetic diseases

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 22, 2021

The c.2093_2104del12 pathogenic mutation (also known as p.Q698_Q701del) is located in coding exon 24 of the LRSAM1 gene. This variant results from an in-frame AGTGCTGCCAGC deletion at nucleotide positions 2093 to 2104. This results in the in-frame deletion of QCCQ from codons 698 to 701. This alteration was detected in the heterozygous state in multiple individuals with autosomal dominant Charcot-Marie-Tooth disease 2, and it was found to segregate with disease in multiple families originating from western and southwestern France (Peretti A et al. Eur J Hum Genet, 2019 09;27:1406-1418). This amino acid region is well conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis (Choi Y et al. PLoS ONE. 2012; 7(10):e46688). This variant is considered to be rare based on population cohorts in the Genome Aggregation Database (gnomAD). Based on the supporting evidence, this variant is expected to be causative of autosomal dominant Charcot-Marie-Tooth disease, type 2P (CMT2P); however, its clinical significance for autosomal recessive CMT2P is unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

Splicing

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

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