X-120426285-T-C

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BA1

The NM_002294.3(LAMP2):c.*5038A>G variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

• Frequency: Genomes: 𝑓 0.29 (4018 hom., 7042 hem., cov: 18)
• Consequence: LAMP2 NM_002294.3 3_prime_UTR
• Clinical Significance: Benign/Likely benign criteria provided, single submitter B:2
• Conservation: PhyloP100: 1.00

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]

ACMG classification

Verdict is Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.82).
• BP6: Variant X-120426285-T-C is Benign according to our data. Variant chrX-120426285-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 367737.Status of the report is criteria_provided_single_submitter, 1 stars.
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.38 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
LAMP2	NM_002294.3	c.*5038A>G		3_prime_UTR_variant	9/9	ENST00000200639.9
LAMP2	NM_001122606.1	c.*2199A>G		3_prime_UTR_variant	9/9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
LAMP2	ENST00000200639.9	c.*5038A>G		3_prime_UTR_variant	9/9	1	NM_002294.3	P3

Frequencies

GnomAD3 genomes AF: 0.293 AC: 29906 AN: 102238 Hom.: 4023 Cov.: 18 AF XY: 0.277 AC XY: 7025 AN XY: 25354

Gnomad AFR AF: 0.103

Gnomad AMI AF: 0.429

Gnomad AMR AF: 0.249

Gnomad ASJ AF: 0.359

Gnomad EAS AF: 0.382

Gnomad SAS AF: 0.363

Gnomad FIN AF: 0.368

Gnomad MID AF: 0.398

Gnomad NFE AF: 0.385

Gnomad OTH AF: 0.291

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.292 AC: 29899 AN: 102290 Hom.: 4018 Cov.: 18 AF XY: 0.277 AC XY: 7042 AN XY: 25416

Gnomad4 AFR AF: 0.103

Gnomad4 AMR AF: 0.248

Gnomad4 ASJ AF: 0.359

Gnomad4 EAS AF: 0.382

Gnomad4 SAS AF: 0.358

Gnomad4 FIN AF: 0.368

Gnomad4 NFE AF: 0.385

Gnomad4 OTH AF: 0.293

Alfa AF: 0.372 Hom.: 33801

Bravo AF: 0.280

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:2

Revision: criteria provided, single submitter

Submissions by phenotype

Danon disease Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 12, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Hypertrophic cardiomyopathy Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jun 14, 2016

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.82
Cadd	Benign	10
Dann	Benign	0.65

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs2748; hg19: chrX-119560140;