rs201209341

Positions:

chrX-120469179-G-A

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_002294.3(LAMP2):c.-10C>T variant causes a 5 prime UTR premature start codon gain change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000752 in 1,210,116 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 32 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00027 ( 0 hom., 15 hem., cov: 23)

Exomes 𝑓: 0.000056 ( 0 hom. 17 hem. )

Consequence

LAMP2
NM_002294.3 5_prime_UTR_premature_start_codon_gain

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: 1.33

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 Benign. Variant got -9 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.55).

BP6

Variant X-120469179-G-A is Benign according to our data. Variant chrX-120469179-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 138074.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1, Benign=1}.

BS2

High Hemizygotes in GnomAd4 at 15 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LAMP2	NM_002294.3 linkuse as main transcript	c.-10C>T		5_prime_UTR_premature_start_codon_gain_variant	1/9	ENST00000200639.9	NP_002285.1	P13473-1
LAMP2	NM_002294.3 linkuse as main transcript	c.-10C>T		5_prime_UTR_variant	1/9	ENST00000200639.9	NP_002285.1	P13473-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
LAMP2	ENST00000200639.9 linkuse as main transcript	c.-10C>T		5_prime_UTR_premature_start_codon_gain_variant	1/9	1	NM_002294.3	ENSP00000200639.4		P13473-1
LAMP2	ENST00000200639.9 linkuse as main transcript	c.-10C>T		5_prime_UTR_variant	1/9	1	NM_002294.3	ENSP00000200639.4		P13473-1

Frequencies

GnomAD3 genomes

AF:

0.000267

AC:

AN:

112485

Hom.:

Cov.:

AF XY:

0.000433

AC XY:

AN XY:

34631

show subpopulations

Gnomad AFR

AF:

0.0000321

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00244

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:

0.0000565

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000121

AC:

AN:

181701

Hom.:

AF XY:

0.000105

AC XY:

AN XY:

66959

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000585

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:

0.0000744

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000556

AC:

AN:

1097631

Hom.:

Cov.:

AF XY:

0.0000468

AC XY:

AN XY:

363085

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000426

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:

0.0000440

Gnomad4 OTH exome

AF:

0.000195

GnomAD4 genome

AF:

0.000267

AC:

AN:

112485

Hom.:

Cov.:

AF XY:

0.000433

AC XY:

AN XY:

34631

show subpopulations

Gnomad4 AFR

AF:

0.0000321

Gnomad4 AMR

AF:

0.00244

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000565

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.000332

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Uncertain:1Benign:1

Benign, criteria provided, single submitter	clinical testing	GeneDx	Apr 02, 2014	This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Uncertain significance, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	Aug 14, 2016	Variant classified as Uncertain Significance - Favor Benign. The c.-10C>T varian t in LAMP2 has not been previously reported in individuals with cardiomyopathy, but has been identified in 3/46625 European chromosomes by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.org; dbSNP rs201209341), including 1 hemizygous individual. This variant is located in the 5' UTR. The c.-10 posit ion is poorly conserved in mammals and evolutionarily distant species and 11 mam mals carry a thymine (T) at this position, raising the possibility that this cha nge may be tolerated. In summary, while the clinical significance of this varian t is uncertain, these data suggest that it is more likely to be benign. -

Cardiomyopathy

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario

Sep 16, 2019

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.55

CADD

Benign

DANN

Benign

0.92

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