Genetic Variant LIMS2:p.Met301Val (chr2-127639406-T-C) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001161403.3(LIMS2):c.901A>G(p.Met301Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,582 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

LIMS2
NM_001161403.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.12

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)

LIMS2 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LIMS2	NM_001161403.3 link	c.901A>G	p.Met301Val	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
LIMS2	ENST00000355119.9 link	c.901A>G	p.Met301Val	missense_variant	Exon 10 of 10	1	NM_001161403.3	ENSP00000347240.4		Q7Z4I7-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461582

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727074

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44700

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26118

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53316

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1111874

Other (OTH)

AF:

0.00

AC:

AN:

60372

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 21, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.973A>G (p.M325V) alteration is located in exon 10 (coding exon 10) of the LIMS2 gene. This alteration results from a A to G substitution at nucleotide position 973, causing the methionine (M) at amino acid position 325 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.41

BayesDel_addAF

Pathogenic

0.24

BayesDel_noAF

Uncertain

0.11

CADD

Uncertain

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.37

.;.;.;.;T;.;.;.;.;.

Eigen

Benign

0.12

Eigen_PC

Uncertain

0.23

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.95

.;.;D;.;D;.;D;.;D;D

M_CAP

Uncertain

0.095

MetaRNN

Uncertain

0.55

D;D;D;D;D;D;D;D;D;D

MetaSVM

Uncertain

0.071

MutationAssessor

Uncertain

2.5

.;.;.;.;M;.;.;.;.;.

PhyloP100

6.1

PrimateAI

Uncertain

0.66

PROVEAN

Benign

-2.0

N;N;N;N;N;N;N;N;N;N

REVEL

Uncertain

0.57

Sift

Benign

0.032

D;D;T;T;T;T;T;D;T;D

Sift4G

Benign

0.41

T;T;T;T;T;T;T;T;T;T

Polyphen

0.22, 0.037

.;.;B;.;B;.;.;.;.;.

Vest4

0.62

MutPred

0.43

.;.;.;.;Gain of methylation at K302 (P = 0.02);.;.;.;.;.;

MVP

0.83

MPC

0.20

ClinPred

0.94

GERP RS

4.8

Varity_R

0.35

gMVP

0.44

Mutation Taster

=71/29

polymorphism

(source)

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

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2-127639406-T-C

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over