X-120442669-GA-G

Position:

chrX-120442669-GA-G

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP6BS2

The NM_002294.3(LAMP2):c.865-8del variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000262 in 1,069,203 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 9 hemizygotes in GnomAD. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0000089 ( 0 hom., 1 hem., cov: 22)

Exomes 𝑓: 0.000026 ( 0 hom. 9 hem. )

Failed GnomAD Quality Control

Consequence

LAMP2
NM_002294.3 splice_region, splice_polypyrimidine_tract, intron

Scores

Not classified

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:5

Conservation

PhyloP100: 2.87

Variant links:

Genes affected

LAMP2 (HGNC:6501): (lysosomal associated membrane protein 2) The protein encoded by this gene is a member of a family of membrane glycoproteins. This glycoprotein provides selectins with carbohydrate ligands. It may play a role in tumor cell metastasis. It may also function in the protection, maintenance, and adhesion of the lysosome. Alternative splicing of this gene results in multiple transcript variants encoding distinct proteins. [provided by RefSeq, Jul 2008]

LAMP2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP6

Variant X-120442669-GA-G is Benign according to our data. Variant chrX-120442669-GA-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 415504.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=1}. Variant chrX-120442669-GA-G is described in Lovd as [Likely_benign].

BS2

High Hemizygotes in GnomAdExome4 at 9 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	MANE
LAMP2	NM_002294.3 linkuse as main transcript	c.865-8del	splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant	ENST00000200639.9
LAMP2	NM_001122606.1 linkuse as main transcript	c.865-8del	splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant
LAMP2	NM_013995.2 linkuse as main transcript	c.865-8del	splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
LAMP2	ENST00000200639.9 linkuse as main transcript	c.865-8del		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		1	NM_002294.3	P3	P13473-1

Frequencies

GnomAD3 genomes

AF:

0.00

AC:

AN:

111824

Hom.:

Cov.:

AF XY:

0.0000294

AC XY:

AN XY:

34054

FAILED QC

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:

0.0000188

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000438

AC:

AN:

182769

Hom.:

AF XY:

0.0000297

AC XY:

AN XY:

67343

show subpopulations

Gnomad AFR exome

AF:

0.0000761

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:

0.0000857

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000262

AC:

AN:

1069203

Hom.:

Cov.:

AF XY:

0.0000267

AC XY:

AN XY:

336501

show subpopulations

Gnomad4 AFR exome

AF:

0.0000386

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:

0.0000331

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.00000894

AC:

AN:

111824

Hom.:

Cov.:

AF XY:

0.0000294

AC XY:

AN XY:

34054

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:

0.0000188

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000378

EpiCase

AF:

0.000109

EpiControl

AF:

0.00

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:5

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Uncertain:1Benign:1

Benign, no assertion criteria provided	clinical testing	Clinical Genetics, Academic Medical Center	-	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	Sep 16, 2023	- -

not provided

Benign:2

Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Jan 30, 2020	- -
Likely benign, no assertion criteria provided	clinical testing	Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen	-	- -

Danon disease

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Invitae

Jan 10, 2024

- -

LAMP2-related disorder

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Aug 13, 2020

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.070

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