rs551183702

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 1P and 0B. PP3

The NM_001005373.4(LRSAM1):​c.103G>A​(p.Asp35Asn) variant causes a missense change. The variant allele was found at a frequency of 0.0000267 in 1,461,792 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: 0.000027 ( 0 hom. )

Consequence

LRSAM1
NM_001005373.4 missense

Scores

7
5
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.20

Publications

0 publications found
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 Gene-Disease associations (from GenCC):
  • Charcot-Marie-Tooth disease axonal type 2P
    Inheritance: AR, AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.776

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
LRSAM1NM_001005373.4 linkc.103G>A p.Asp35Asn missense_variant Exon 4 of 26 ENST00000300417.11 NP_001005373.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
LRSAM1ENST00000300417.11 linkc.103G>A p.Asp35Asn missense_variant Exon 4 of 26 1 NM_001005373.4 ENSP00000300417.6 Q6UWE0-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152174
Hom.:
0
Cov.:
32
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:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000557
AC:
14
AN:
251492
AF XY:
0.0000515
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000109
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000267
AC:
39
AN:
1461792
Hom.:
0
Cov.:
31
AF XY:
0.0000344
AC XY:
25
AN XY:
727198
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33478
American (AMR)
AF:
0.00
AC:
0
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.0000756
AC:
3
AN:
39694
South Asian (SAS)
AF:
0.000313
AC:
27
AN:
86240
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53408
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000719
AC:
8
AN:
1111958
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60390
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.456
Heterozygous variant carriers
0
3
6
9
12
15
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.0000659
AC:
8

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Charcot-Marie-Tooth disease axonal type 2P Uncertain:1
Aug 01, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 35 of the LRSAM1 protein (p.Asp35Asn). This variant is present in population databases (rs551183702, gnomAD 0.03%). This variant has not been reported in the literature in individuals affected with LRSAM1-related conditions. ClinVar contains an entry for this variant (Variation ID: 408264). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt LRSAM1 protein function with a positive predictive value of 80%. 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
Pathogenic
0.72
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.32
CADD
Pathogenic
32
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.38
T;.;T;T
Eigen
Pathogenic
0.81
Eigen_PC
Pathogenic
0.79
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Uncertain
0.93
D;D;.;.
M_CAP
Benign
0.019
T
MetaRNN
Pathogenic
0.78
D;D;D;D
MetaSVM
Benign
-0.47
T
MutationAssessor
Uncertain
2.6
M;M;M;M
PhyloP100
7.2
PrimateAI
Pathogenic
0.82
D
PROVEAN
Uncertain
-4.0
D;D;D;D
REVEL
Uncertain
0.36
Sift
Pathogenic
0.0
D;D;D;D
Sift4G
Benign
0.17
T;T;T;T
Polyphen
1.0
D;D;D;D
Vest4
0.85
MutPred
0.58
Gain of ubiquitination at K38 (P = 0.0671);Gain of ubiquitination at K38 (P = 0.0671);Gain of ubiquitination at K38 (P = 0.0671);Gain of ubiquitination at K38 (P = 0.0671);
MVP
0.84
MPC
0.68
ClinPred
0.94
D
GERP RS
5.5
Varity_R
0.72
gMVP
0.42
Mutation Taster
=75/25
polymorphism

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

Other links and lift over

dbSNP: rs551183702; hg19: chr9-130217307; API