Variant 7-108030900-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BP4_Strong

The NM_007356.3(LAMB4):c.4898T>C(p.Leu1633Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000836 in 1,614,128 control chromosomes in the GnomAD database, including 2 homozygotes. 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: 𝑓 0.00046 ( 0 hom., cov: 31)

Exomes 𝑓: 0.00088 ( 2 hom. )

Consequence

LAMB4
NM_007356.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.57

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.024424136).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
LAMB4	NM_007356.3 linkuse as main transcript	c.4898T>C	p.Leu1633Pro	missense_variant	32/34	ENST00000388781.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
LAMB4	ENST00000388781.8 linkuse as main transcript	c.4898T>C	p.Leu1633Pro	missense_variant	32/34	1	NM_007356.3	P1	A4D0S4-1

Frequencies

GnomAD3 genomes

AF:

0.000460

AC:

AN:

152156

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.000926

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000370

AC:

AN:

251372

Hom.:

AF XY:

0.000368

AC XY:

AN XY:

135852

show subpopulations

Gnomad AFR exome

AF:

0.000123

Gnomad AMR exome

AF:

0.0000289

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:

0.000765

Gnomad OTH exome

AF:

0.000489

GnomAD4 exome

AF:

0.000876

AC:

1280

AN:

1461854

Hom.:

Cov.:

AF XY:

0.000815

AC XY:

593

AN XY:

727226

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

Gnomad4 AMR exome

AF:

0.0000447

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.00113

Gnomad4 OTH exome

AF:

0.000364

GnomAD4 genome

AF:

0.000460

AC:

AN:

152274

Hom.:

Cov.:

AF XY:

0.000363

AC XY:

AN XY:

74464

show subpopulations

Gnomad4 AFR

AF:

0.0000963

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000926

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000664

Hom.:

Bravo

AF:

0.000419

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000698

AC:

ExAC

AF:

0.000313

AC:

EpiCase

AF:

0.000818

EpiControl

AF:

0.000711

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

Apr 06, 2022

The c.4898T>C (p.L1633P) alteration is located in exon 32 (coding exon 31) of the LAMB4 gene. This alteration results from a T to C substitution at nucleotide position 4898, causing the leucine (L) at amino acid position 1633 to be replaced by a proline (P). 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

0.10

BayesDel_addAF

Benign

-0.39

BayesDel_noAF

Benign

-0.40

Cadd

Benign

1.5

Dann

Benign

0.75

DEOGEN2

Benign

0.070

T;T;.

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.027

M_CAP

Benign

0.035

MetaRNN

Benign

0.024

T;T;T

MetaSVM

Benign

-0.86

MutationAssessor

Benign

0.69

N;N;.

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.23

PROVEAN

Benign

-0.27

N;N;N

REVEL

Benign

0.014

Sift

Benign

0.27

T;T;T

Sift4G

Benign

0.27

T;T;T

Polyphen

0.28

B;B;.

Vest4

0.29

MVP

0.040

MPC

0.13

ClinPred

0.043

GERP RS

-5.9

Varity_R

0.14

gMVP

0.36

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