20-62309391-G-C

Position:

chr20-62309391-G-C

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_005560.6(LAMA5):c.11033C>G(p.Thr3678Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000113 in 1,589,794 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 30)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

LAMA5
NM_005560.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.607

Variant links:

Genes affected

LAMA5 (HGNC:6485): (laminin subunit alpha 5) This gene encodes one of the vertebrate laminin alpha chains. Laminins, a family of extracellular matrix glycoproteins, are the major noncollagenous constituent of basement membranes. They have been implicated in a wide variety of biological processes including cell adhesion, differentiation, migration, signaling, neurite outgrowth and metastasis. Laminins are composed of 3 non identical chains: laminin alpha, beta and gamma (formerly A, B1, and B2, respectively) and they form a cruciform structure consisting of 3 short arms, each formed by a different chain, and a long arm composed of all 3 chains. Each laminin chain is a multidomain protein encoded by a distinct gene. The protein encoded by this gene is the alpha-5 subunit of of laminin-10 (laminin-511), laminin-11 (laminin-521) and laminin-15 (laminin-523). [provided by RefSeq, Jun 2013]

LAMA5 links:

LAMA5 (HGNC:):

LAMA5 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.0609712).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LAMA5	NM_005560.6 linkuse as main transcript	c.11033C>G	p.Thr3678Ser	missense_variant	80/80	ENST00000252999.7	NP_005551.3	O15230-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
LAMA5	ENST00000252999.7 linkuse as main transcript	c.11033C>G	p.Thr3678Ser	missense_variant	80/80	1	NM_005560.6	ENSP00000252999.3	O15230-1
LAMA5	ENST00000370691.6 linkuse as main transcript	n.2828C>G		non_coding_transcript_exon_variant	17/17	1
LAMA5	ENST00000495695.1 linkuse as main transcript	n.534C>G		non_coding_transcript_exon_variant	4/4	2

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152066

Hom.:

Cov.:

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:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000187

AC:

AN:

214174

Hom.:

AF XY:

0.00

AC XY:

AN XY:

118414

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000107

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000101

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000118

AC:

AN:

1437728

Hom.:

Cov.:

AF XY:

0.00000979

AC XY:

AN XY:

714670

show subpopulations

Gnomad4 AFR exome

AF:

0.000150

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000238

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000541

Gnomad4 OTH exome

AF:

0.0000502

GnomAD4 genome

AF:

0.00000658

AC:

AN:

152066

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74254

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000189

ExAC

AF:

0.0000169

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

LAMA5-related disorder

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

May 17, 2023

The LAMA5 c.11033C>G variant is predicted to result in the amino acid substitution p.Thr3678Ser. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.011% of alleles in individuals of South Asian descent in gnomAD (http://gnomad.broadinstitute.org/variant/20-60884447-G-C). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.080

BayesDel_addAF

Benign

-0.29

BayesDel_noAF

Benign

-0.44

CADD

Benign

1.4

DANN

Benign

0.39

DEOGEN2

Benign

0.038

Eigen

Benign

-0.96

Eigen_PC

Benign

-0.91

FATHMM_MKL

Benign

0.17

LIST_S2

Benign

0.23

M_CAP

Benign

0.036

MetaRNN

Benign

0.061

MetaSVM

Benign

-0.98

MutationAssessor

Benign

0.74

PrimateAI

Benign

0.36

PROVEAN

Benign

-0.85

REVEL

Benign

0.12

Sift

Benign

0.46

Sift4G

Benign

0.85

Polyphen

0.0020

Vest4

0.035

MutPred

0.24

Gain of disorder (P = 0.0252);

MVP

0.43

ClinPred

0.030

GERP RS

3.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.046

gMVP

0.32

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