rs149276836

Variant names:

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2

The NM_002294.3(LAMP2):c.385G>A(p.Ala129Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000929 in 1,194,244 control chromosomes in the GnomAD database, including 1 homozygotes. There are 26 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). Synonymous variant affecting the same amino acid position (i.e. A129A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00044 ( 0 hom., 10 hem., cov: 20)

Exomes 𝑓: 0.000057 ( 1 hom. 16 hem. )

Consequence

LAMP2
NM_002294.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:6

Conservation

PhyloP100: 3.53

Publications

5 publications found

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 Gene-Disease associations (from GenCC):

Danon disease
Inheritance: XL Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, G2P, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Orphanet

LAMP2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -7 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.10014692).

BP6

Variant X-120455369-C-T is Benign according to our data. Variant chrX-120455369-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 180871.

BS2

High Hemizygotes in GnomAd4 at 10 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein
LAMP2	NM_002294.3 link	c.385G>A	p.Ala129Thr	missense_variant	Exon 3 of 9	ENST00000200639.9	NP_002285.1
LAMP2	NM_001122606.1 link	c.385G>A	p.Ala129Thr	missense_variant	Exon 3 of 9		NP_001116078.1
LAMP2	NM_013995.2 link	c.385G>A	p.Ala129Thr	missense_variant	Exon 3 of 9		NP_054701.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein
LAMP2	ENST00000200639.9 link	c.385G>A	p.Ala129Thr	missense_variant	Exon 3 of 9	1	NM_002294.3	ENSP00000200639.4
LAMP2	ENST00000434600.6 link	c.385G>A	p.Ala129Thr	missense_variant	Exon 3 of 9	1		ENSP00000408411.2
LAMP2	ENST00000371335.4 link	c.385G>A	p.Ala129Thr	missense_variant	Exon 3 of 9	1		ENSP00000360386.4
LAMP2	ENST00000706600.1 link	c.385G>A	p.Ala129Thr	missense_variant	Exon 3 of 9			ENSP00000516464.1

Frequencies

GnomAD3 genomes

AF:

0.000443

AC:

AN:

110519

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00142

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000585

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000125

AC:

AN:

183357

AF XY:

0.0000590

show subpopulations

Gnomad AFR exome

AF:

0.00152

Gnomad AMR exome

AF:

0.0000729

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000221

GnomAD4 exome

AF:

0.0000572

AC:

AN:

1083673

Hom.:

Cov.:

AF XY:

0.0000457

AC XY:

AN XY:

350303

show subpopulations

African (AFR)

AF:

0.00165

AC:

AN:

26137

American (AMR)

AF:

0.000227

AC:

AN:

35192

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

19302

East Asian (EAS)

AF:

0.00

AC:

AN:

30144

South Asian (SAS)

AF:

0.0000372

AC:

AN:

53834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

40525

Middle Eastern (MID)

AF:

0.000244

AC:

AN:

4100

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

828817

Other (OTH)

AF:

0.000175

AC:

AN:

45622

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.456

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000443

AC:

AN:

110571

Hom.:

Cov.:

AF XY:

0.000305

AC XY:

AN XY:

32827

show subpopulations

African (AFR)

AF:

0.00141

AC:

AN:

30432

American (AMR)

AF:

0.000584

AC:

AN:

10272

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

2637

East Asian (EAS)

AF:

0.00

AC:

AN:

3546

South Asian (SAS)

AF:

0.00

AC:

AN:

2601

European-Finnish (FIN)

AF:

0.00

AC:

AN:

5797

Middle Eastern (MID)

AF:

0.00

AC:

AN:

216

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

52887

Other (OTH)

AF:

0.00

AC:

AN:

1503

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.485

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000947

Hom.:

Bravo

AF:

0.000472

ESP6500AA

AF:

0.000782

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000132

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:6

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:1

Nov 12, 2020

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jul 21, 2014

Eurofins Ntd Llc (ga)

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not specified

Benign:1

Apr 09, 2025

Molecular Diagnostic Laboratory for Inherited Cardiovascular Disease, Montreal Heart Institute

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Danon disease

Benign:1

Jan 20, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

LAMP2-related disorder

Benign:1

Jul 31, 2022

PreventionGenetics, part of Exact Sciences

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

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). -

Cardiomyopathy

Benign:1

Sep 30, 2020

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

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Cardiovascular phenotype

Benign:1

Oct 08, 2018

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.21

CardioboostCm

Uncertain

0.12

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.27

CADD

Uncertain

(source)

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.34

.;T;.

FATHMM_MKL

Uncertain

0.91

LIST_S2

Uncertain

0.89

D;D;D

M_CAP

Pathogenic

0.49

MetaRNN

Benign

0.10

T;T;T

MetaSVM

Benign

-0.45

MutationAssessor

Pathogenic

3.4

M;M;M

PhyloP100

3.5

PrimateAI

Benign

0.45

PROVEAN

Uncertain

-3.3

D;D;D

REVEL

Uncertain

0.34

Sift

Uncertain

0.0030

D;D;D

Sift4G

Uncertain

0.0070

D;D;D

Polyphen

1.0

.;D;D

Vest4

0.53

MVP

0.80

MPC

0.86

ClinPred

0.28

GERP RS

5.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.69

gMVP

0.74

Mutation Taster

=93/7

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over