Variant chr7-108034265-G-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 4P and 2B. PM1PM2BP4_Moderate

The ENST00000388781.8(LAMB4):c.4761C>A(p.Asn1587Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,628 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

LAMB4
ENST00000388781.8 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.24

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 2 ACMG points.

PM1

In a glycosylation_site N-linked (GlcNAc...) asparagine (size 0) in uniprot entity LAMB4_HUMAN

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.076432556).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LAMB4	NM_007356.3 linkuse as main transcript	c.4761C>A	p.Asn1587Lys	missense_variant	31/34	ENST00000388781.8	NP_031382.2	A4D0S4-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
LAMB4	ENST00000388781.8 linkuse as main transcript	c.4761C>A	p.Asn1587Lys	missense_variant	31/34	1	NM_007356.3	ENSP00000373433.3		A4D0S4-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251364

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135856

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:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000880

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461628

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727132

show subpopulations

Gnomad4 AFR exome

AF:

0.00

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:

0.00000270

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

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

Dec 20, 2023

The c.4761C>A (p.N1587K) alteration is located in exon 31 (coding exon 30) of the LAMB4 gene. This alteration results from a C to A substitution at nucleotide position 4761, causing the asparagine (N) at amino acid position 1587 to be replaced by a lysine (K). 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

0.16

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Benign

-0.47

CADD

Benign

DANN

Benign

0.87

DEOGEN2

Benign

0.076

T;T;.

Eigen

Benign

-0.61

Eigen_PC

Benign

-0.56

FATHMM_MKL

Benign

0.37

LIST_S2

Benign

0.43

.;T;T

M_CAP

Benign

0.020

MetaRNN

Benign

0.076

T;T;T

MetaSVM

Benign

-0.96

MutationAssessor

Benign

1.6

L;L;.

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.34

PROVEAN

Benign

-0.66

N;N;N

REVEL

Benign

0.019

Sift

Benign

0.20

T;T;T

Sift4G

Benign

0.67

T;T;T

Polyphen

0.47

P;P;.

Vest4

0.19

MutPred

0.31

Gain of ubiquitination at N1587 (P = 0.0155);Gain of ubiquitination at N1587 (P = 0.0155);.;

MVP

0.061

MPC

0.074

ClinPred

0.11

GERP RS

3.0

Varity_R

0.041

gMVP

0.057

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