Variant rs914380880 details in Genebe, Genetics Data Aggregator

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

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]

LAMA2 links:

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	UniProt
LAMA2	NM_000426.4 linkuse as main transcript	c.5608C>A	p.Leu1870Ile	missense_variant	39/65	ENST00000421865.3
LAMA2	NM_001079823.2 linkuse as main transcript	c.5608C>A	p.Leu1870Ile	missense_variant	39/64

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
LAMA2	ENST00000421865.3 linkuse as main transcript	c.5608C>A	p.Leu1870Ile	missense_variant	39/65	5	NM_000426.4
LAMA2	ENST00000618192.5 linkuse as main transcript	c.5872C>A	p.Leu1958Ile	missense_variant	40/66	5		P1
LAMA2	ENST00000617695.5 linkuse as main transcript	c.5608C>A	p.Leu1870Ile	missense_variant	39/64	5

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152098

Hom.:

Cov.:

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:

AN:

251024

Hom.:

AF XY:

0.00

AC XY:

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:

AN:

1461700

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

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:

AN:

152098

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

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.:

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 submitter

clinical testing

Invitae

Oct 29, 2023

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.34

Cadd

Uncertain

Dann

Uncertain

0.98

Eigen

Uncertain

0.52

Eigen_PC

Uncertain

0.47

FATHMM_MKL

Uncertain

0.96

LIST_S2

Benign

0.83

T;T;T

M_CAP

Benign

0.023

MetaRNN

Benign

0.32

T;T;T

MetaSVM

Benign

-1.0

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.57

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

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over