rs914380880

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 0P and 3B. BP4BP6_Moderate

The NM_000426.4(LAMA2):​c.5608C>A​(p.Leu1870Ile) variant causes a missense change. The variant allele was found at a frequency of 0.0000062 in 1,613,798 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

LAMA2
NM_000426.4 missense

Scores

6
12

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 5.15
Variant links:
Genes affected
LAMA2 (HGNC:6482): (laminin subunit alpha 2) Laminin, an extracellular protein, is a major component of the basement membrane. It is thought to mediate the attachment, migration, and organization of cells into tissues during embryonic development by interacting with other extracellular matrix components. It is composed of three subunits, alpha, beta, and gamma, which are bound to each other by disulfide bonds into a cross-shaped molecule. This gene encodes the alpha 2 chain, which constitutes one of the subunits of laminin 2 (merosin) and laminin 4 (s-merosin). Mutations in this gene have been identified as the cause of congenital merosin-deficient muscular dystrophy. Two transcript variants encoding different proteins have been found for this gene. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.32095152).
BP6
Variant 6-129402369-C-A is Benign according to our data. Variant chr6-129402369-C-A is described in ClinVar as [Likely_benign]. Clinvar id is 579953.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
LAMA2NM_000426.4 linkuse as main transcriptc.5608C>A p.Leu1870Ile missense_variant 39/65 ENST00000421865.3 NP_000417.3
LAMA2NM_001079823.2 linkuse as main transcriptc.5608C>A p.Leu1870Ile missense_variant 39/64 NP_001073291.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
LAMA2ENST00000421865.3 linkuse as main transcriptc.5608C>A p.Leu1870Ile missense_variant 39/655 NM_000426.4 ENSP00000400365
LAMA2ENST00000618192.5 linkuse as main transcriptc.5872C>A p.Leu1958Ile missense_variant 40/665 ENSP00000480802 P1
LAMA2ENST00000617695.5 linkuse as main transcriptc.5608C>A p.Leu1870Ile missense_variant 39/645 ENSP00000481744

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152098
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000169
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251024
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135660
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461700
Hom.:
0
Cov.:
32
AF XY:
0.00000138
AC XY:
1
AN XY:
727152
show subpopulations
Gnomad4 AFR exome
AF:
0.0000896
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152098
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74302
show subpopulations
Gnomad4 AFR
AF:
0.000169
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000302

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

LAMA2-related muscular dystrophy Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpOct 29, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
-0.20
T
BayesDel_noAF
Benign
-0.34
CADD
Uncertain
24
DANN
Uncertain
0.98
DEOGEN2
Benign
0.016
.;T;T
Eigen
Uncertain
0.52
Eigen_PC
Uncertain
0.47
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.83
T;T;T
M_CAP
Benign
0.023
T
MetaRNN
Benign
0.32
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.5
.;.;M
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.57
T
PROVEAN
Benign
-0.42
.;.;N
REVEL
Benign
0.18
Sift
Benign
0.42
.;.;T
Polyphen
1.0
.;.;D
Vest4
0.49
MutPred
0.32
Gain of catalytic residue at L1870 (P = 0.0739);Gain of catalytic residue at L1870 (P = 0.0739);Gain of catalytic residue at L1870 (P = 0.0739);
MVP
0.53
MPC
0.50
ClinPred
0.78
D
GERP RS
5.0
Varity_R
0.12
gMVP
0.24

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs914380880; hg19: chr6-129723514; COSMIC: COSV70356056; API