Variant 1-209632550-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 2P and 8B. PM2BP4_StrongBS1

The NM_000228.3(LAMB3):c.822+33G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000585 in 1,590,782 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000058 ( 0 hom. )

Consequence

LAMB3
NM_000228.3 intron

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.421

Variant links:

Genes affected

LAMB3 (HGNC:6490): (laminin subunit beta 3) The product encoded by this gene is a laminin that belongs to a family of basement membrane proteins. This protein is a beta subunit laminin, which together with an alpha and a gamma subunit, forms laminin-5. Mutations in this gene cause epidermolysis bullosa junctional Herlitz type, and generalized atrophic benign epidermolysis bullosa, diseases that are characterized by blistering of the skin. Multiple alternatively spliced transcript variants that encode the same protein have been found for this gene. [provided by RefSeq, Jul 2008]

LAMB3 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.72).

BS1

Variant frequency is greater than expected in population eas. gnomad4_exome allele frequency = 0.0000584 (84/1438478) while in subpopulation EAS AF= 0.00167 (66/39500). AF 95% confidence interval is 0.00135. There are 0 homozygotes in gnomad4_exome. There are 38 alleles in male gnomad4_exome subpopulation. Median coverage is 28. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LAMB3	NM_000228.3 linkuse as main transcript	c.822+33G>A		intron_variant		ENST00000356082.9	NP_000219.2	Q13751A0A0S2Z3R6

Ensembl

Gene	Transcript	HGVSc	Effect	TSL	MANE	Protein	UniProt
LAMB3	ENST00000356082.9 linkuse as main transcript	c.822+33G>A	intron_variant	1	NM_000228.3	ENSP00000348384.3	Q13751
LAMB3	ENST00000367030.7 linkuse as main transcript	c.822+33G>A	intron_variant	1		ENSP00000355997.3	Q13751
LAMB3	ENST00000391911.5 linkuse as main transcript	c.822+33G>A	intron_variant	1		ENSP00000375778.1	Q13751

Frequencies

GnomAD3 genomes

AF:

0.0000591

AC:

AN:

152186

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:

0.000771

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000527

AC:

AN:

246656

Hom.:

AF XY:

0.0000522

AC XY:

AN XY:

134204

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000602

Gnomad SAS exome

AF:

0.0000328

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000901

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000584

AC:

AN:

1438478

Hom.:

Cov.:

AF XY:

0.0000530

AC XY:

AN XY:

716390

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00167

Gnomad4 SAS exome

AF:

0.0000117

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000110

Gnomad4 OTH exome

AF:

0.0000673

GnomAD4 genome

AF:

0.0000591

AC:

AN:

152304

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74468

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000772

Gnomad4 SAS

AF:

0.000414

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000790

Hom.:

253

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.72

CADD

Benign

2.9

DANN

Benign

0.85

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over