2-127639336-G-A

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_001161403.3(LIMS2):​c.971C>T​(p.Ser324Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000595 in 1,613,894 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00024 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000041 ( 0 hom. )

Consequence

LIMS2
NM_001161403.3 missense

Scores

2
2
15

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 6.89

Publications

0 publications found
Variant links:
Genes affected
LIMS2 (HGNC:16084): (LIM zinc finger domain containing 2) This gene encodes a member of a small family of focal adhesion proteins which interacts with ILK (integrin-linked kinase), a protein which effects protein-protein interactions with the extraceullar matrix. The encoded protein has five LIM domains, each domain forming two zinc fingers, which permit interactions which regulate cell shape and migration. A pseudogene of this gene is located on chromosome 4. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2011]
LIMS2 Gene-Disease associations (from GenCC):
  • autosomal recessive limb-girdle muscular dystrophy type 2W
    Inheritance: AR, Unknown Classification: SUPPORTIVE, LIMITED Submitted by: Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.03428644).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
LIMS2NM_001161403.3 linkc.971C>T p.Ser324Leu missense_variant Exon 10 of 10 ENST00000355119.9 NP_001154875.1 Q7Z4I7-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
LIMS2ENST00000355119.9 linkc.971C>T p.Ser324Leu missense_variant Exon 10 of 10 1 NM_001161403.3 ENSP00000347240.4 Q7Z4I7-1

Frequencies

GnomAD3 genomes
AF:
0.000243
AC:
37
AN:
152126
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000749
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
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:
0.0000147
Gnomad OTH
AF:
0.000956
GnomAD2 exomes
AF:
0.000107
AC:
27
AN:
251258
AF XY:
0.000103
show subpopulations
Gnomad AFR exome
AF:
0.000861
Gnomad AMR exome
AF:
0.0000868
Gnomad ASJ exome
AF:
0.0000995
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000528
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000410
AC:
60
AN:
1461652
Hom.:
0
Cov.:
32
AF XY:
0.0000234
AC XY:
17
AN XY:
727148
show subpopulations
African (AFR)
AF:
0.000478
AC:
16
AN:
33480
American (AMR)
AF:
0.0000671
AC:
3
AN:
44708
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26118
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39678
South Asian (SAS)
AF:
0.0000348
AC:
3
AN:
86254
European-Finnish (FIN)
AF:
0.0000187
AC:
1
AN:
53340
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
0.0000288
AC:
32
AN:
1111932
Other (OTH)
AF:
0.0000828
AC:
5
AN:
60376
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.468
Heterozygous variant carriers
0
4
8
11
15
19
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
AF:
0.000236
AC:
36
AN:
152242
Hom.:
0
Cov.:
33
AF XY:
0.000296
AC XY:
22
AN XY:
74436
show subpopulations
African (AFR)
AF:
0.000723
AC:
30
AN:
41518
American (AMR)
AF:
0.000196
AC:
3
AN:
15312
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5178
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68000
Other (OTH)
AF:
0.000946
AC:
2
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.536
Heterozygous variant carriers
0
2
4
7
9
11
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.000241
Hom.:
0
Bravo
AF:
0.000234
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000107
AC:
13
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Autosomal recessive limb-girdle muscular dystrophy type 2W Uncertain:2
Feb 09, 2021
Revvity Omics, Revvity
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Aug 12, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces serine, which is neutral and polar, with leucine, which is neutral and non-polar, at codon 346 of the LIMS2 protein (p.Ser346Leu). This variant is present in population databases (rs377574169, gnomAD 0.09%), and has an allele count higher than expected for a pathogenic variant. This variant has not been reported in the literature in individuals affected with LIMS2-related conditions. ClinVar contains an entry for this variant (Variation ID: 1354331). 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 not expected to disrupt LIMS2 protein function with a negative 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
Benign
0.10
BayesDel_addAF
Benign
-0.36
T
BayesDel_noAF
Benign
-0.36
CADD
Uncertain
24
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.12
.;.;.;.;T;.;.;.;.;.
Eigen
Benign
0.10
Eigen_PC
Uncertain
0.25
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.94
.;.;D;.;D;.;D;.;D;D
M_CAP
Benign
0.012
T
MetaRNN
Benign
0.034
T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.1
.;.;.;.;L;.;.;.;.;.
PhyloP100
6.9
PrimateAI
Benign
0.42
T
PROVEAN
Benign
-1.5
N;N;N;N;N;N;N;N;N;N
REVEL
Benign
0.067
Sift
Benign
0.24
T;T;T;T;T;T;T;T;T;T
Sift4G
Benign
0.30
T;T;T;T;T;T;T;T;T;T
Polyphen
0.23, 0.52
.;.;B;.;P;.;.;.;.;.
Vest4
0.36
MVP
0.57
MPC
0.14
ClinPred
0.030
T
GERP RS
5.1
Varity_R
0.18
gMVP
0.38
Mutation Taster
=67/33
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: rs377574169; hg19: chr2-128396911; COSMIC: COSV61441228; COSMIC: COSV61441228; API