Variant 7-108043770-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_007356.3(LAMB4):c.4453G>A(p.Val1485Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000379 in 1,581,796 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 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: 31)

Exomes 𝑓: 0.0000035 ( 0 hom. )

Consequence

LAMB4
NM_007356.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.148

Variant links:

Genes affected

LAMB4 (HGNC:6491): (laminin subunit beta 4) Predicted to be an extracellular matrix structural constituent. Predicted to be involved in several processes, including basement membrane assembly; cell migration; and substrate adhesion-dependent cell spreading. Predicted to be located in basement membrane; extracellular region; and membrane. Predicted to be part of laminin complex. [provided by Alliance of Genome Resources, Apr 2022]

LAMB4 links:

LAMB4 (HGNC:):

LAMB4 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.13247636).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LAMB4	NM_007356.3 linkuse as main transcript	c.4453G>A	p.Val1485Met	missense_variant	29/34	ENST00000388781.8	NP_031382.2	A4D0S4-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
LAMB4	ENST00000388781.8 linkuse as main transcript	c.4453G>A	p.Val1485Met	missense_variant	29/34	1	NM_007356.3	ENSP00000373433.3	A4D0S4-1
LAMB4	ENST00000205386.8 linkuse as main transcript	c.4453G>A	p.Val1485Met	missense_variant	29/34	1		ENSP00000205386.4	A4D0S4-1
LAMB4	ENST00000422975.1 linkuse as main transcript	c.1531G>A	p.Val511Met	missense_variant	8/13	1		ENSP00000416562.1	A0A0C4DG90
LAMB4	ENST00000475572.1 linkuse as main transcript	n.154G>A		non_coding_transcript_exon_variant	2/5	4

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

151876

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000657

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:

0.0000130

AC:

AN:

230010

Hom.:

AF XY:

0.00

AC XY:

AN XY:

124484

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000104

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:

0.00000350

AC:

AN:

1429920

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

711666

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000127

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:

0.00000658

AC:

AN:

151876

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74168

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000657

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

Bravo

AF:

0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 29, 2022

The c.4453G>A (p.V1485M) alteration is located in exon 29 (coding exon 28) of the LAMB4 gene. This alteration results from a G to A substitution at nucleotide position 4453, causing the valine (V) at amino acid position 1485 to be replaced by a methionine (M). 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

Benign

0.12

BayesDel_addAF

Benign

-0.45

BayesDel_noAF

Benign

-0.63

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.14

T;T;.

Eigen

Benign

-0.18

Eigen_PC

Benign

-0.19

FATHMM_MKL

Benign

0.47

LIST_S2

Benign

0.75

.;T;T

M_CAP

Benign

0.0090

MetaRNN

Benign

0.13

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.5

L;L;.

PrimateAI

Benign

0.37

PROVEAN

Benign

-1.6

N;N;N

REVEL

Benign

0.058

Sift

Uncertain

0.0040

D;D;D

Sift4G

Uncertain

0.031

D;D;D

Polyphen

0.72

P;P;.

Vest4

0.28

MutPred

0.27

Loss of methylation at K1486 (P = 0.0311);Loss of methylation at K1486 (P = 0.0311);.;

MVP

0.048

MPC

0.072

ClinPred

0.45

GERP RS

0.99

Varity_R

0.087

gMVP

0.27

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