rs193922648

Variant summary

Our verdict is Benign. The variant received -16 ACMG points: 0P and 16B. BP6_Very_StrongBS1BS2

The NM_002294.3(LAMP2):​c.-23_-15delGTCGCCGCC variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0164 in 1,209,919 control chromosomes in the GnomAD database, including 139 homozygotes. There are 6,351 hemizygotes in GnomAD. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.013 ( 8 hom., 382 hem., cov: 22)
Exomes 𝑓: 0.017 ( 131 hom. 5969 hem. )

Consequence

LAMP2
NM_002294.3 5_prime_UTR

Scores

Not classified

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:9

Conservation

PhyloP100: 0.145

Publications

1 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -16 ACMG points.

BP6
Variant X-120469183-AGGCGGCGAC-A is Benign according to our data. Variant chrX-120469183-AGGCGGCGAC-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 36440.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.0132 (1492/112821) while in subpopulation NFE AF = 0.0196 (1045/53294). AF 95% confidence interval is 0.0186. There are 8 homozygotes in GnomAd4. There are 382 alleles in the male GnomAd4 subpopulation. Median coverage is 22. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 8 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
LAMP2NM_002294.3 linkc.-23_-15delGTCGCCGCC 5_prime_UTR_variant Exon 1 of 9 ENST00000200639.9 NP_002285.1 P13473-1
LAMP2NM_001122606.1 linkc.-23_-15delGTCGCCGCC 5_prime_UTR_variant Exon 1 of 9 NP_001116078.1 P13473-3
LAMP2NM_013995.2 linkc.-23_-15delGTCGCCGCC 5_prime_UTR_variant Exon 1 of 9 NP_054701.1 P13473-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
LAMP2ENST00000200639.9 linkc.-23_-15delGTCGCCGCC 5_prime_UTR_variant Exon 1 of 9 1 NM_002294.3 ENSP00000200639.4 P13473-1
LAMP2ENST00000434600.6 linkc.-23_-15delGTCGCCGCC 5_prime_UTR_variant Exon 1 of 9 1 ENSP00000408411.2 P13473-3
LAMP2ENST00000371335.4 linkc.-23_-15delGTCGCCGCC 5_prime_UTR_variant Exon 1 of 9 1 ENSP00000360386.4 P13473-2
LAMP2ENST00000706600.1 linkc.-23_-15delGTCGCCGCC 5_prime_UTR_variant Exon 1 of 9 ENSP00000516464.1 A0A9L9PXQ4

Frequencies

GnomAD3 genomes
AF:
0.0132
AC:
1493
AN:
112767
Hom.:
8
Cov.:
22
show subpopulations
Gnomad AFR
AF:
0.00360
Gnomad AMI
AF:
0.0132
Gnomad AMR
AF:
0.0133
Gnomad ASJ
AF:
0.0124
Gnomad EAS
AF:
0.00112
Gnomad SAS
AF:
0.0104
Gnomad FIN
AF:
0.0160
Gnomad MID
AF:
0.00418
Gnomad NFE
AF:
0.0196
Gnomad OTH
AF:
0.0126
GnomAD2 exomes
AF:
0.0147
AC:
2662
AN:
181520
AF XY:
0.0143
show subpopulations
Gnomad AFR exome
AF:
0.00355
Gnomad AMR exome
AF:
0.00984
Gnomad ASJ exome
AF:
0.0147
Gnomad EAS exome
AF:
0.000941
Gnomad FIN exome
AF:
0.0195
Gnomad NFE exome
AF:
0.0186
Gnomad OTH exome
AF:
0.0169
GnomAD4 exome
AF:
0.0167
AC:
18325
AN:
1097098
Hom.:
131
AF XY:
0.0165
AC XY:
5969
AN XY:
362610
show subpopulations
African (AFR)
AF:
0.00417
AC:
110
AN:
26385
American (AMR)
AF:
0.0103
AC:
363
AN:
35187
Ashkenazi Jewish (ASJ)
AF:
0.0146
AC:
283
AN:
19365
East Asian (EAS)
AF:
0.00103
AC:
31
AN:
30200
South Asian (SAS)
AF:
0.0172
AC:
932
AN:
54118
European-Finnish (FIN)
AF:
0.0211
AC:
854
AN:
40436
Middle Eastern (MID)
AF:
0.0106
AC:
43
AN:
4073
European-Non Finnish (NFE)
AF:
0.0178
AC:
14965
AN:
841291
Other (OTH)
AF:
0.0162
AC:
744
AN:
46043
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.459
Heterozygous variant carriers
0
594
1189
1783
2378
2972
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
548
1096
1644
2192
2740
<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:
0.0132
AC:
1492
AN:
112821
Hom.:
8
Cov.:
22
AF XY:
0.0109
AC XY:
382
AN XY:
34997
show subpopulations
African (AFR)
AF:
0.00359
AC:
112
AN:
31189
American (AMR)
AF:
0.0132
AC:
142
AN:
10718
Ashkenazi Jewish (ASJ)
AF:
0.0124
AC:
33
AN:
2660
East Asian (EAS)
AF:
0.00112
AC:
4
AN:
3561
South Asian (SAS)
AF:
0.0101
AC:
28
AN:
2770
European-Finnish (FIN)
AF:
0.0160
AC:
99
AN:
6197
Middle Eastern (MID)
AF:
0.00459
AC:
1
AN:
218
European-Non Finnish (NFE)
AF:
0.0196
AC:
1045
AN:
53294
Other (OTH)
AF:
0.0124
AC:
19
AN:
1533
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.479
Heterozygous variant carriers
0
54
108
161
215
269
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
20
40
60
80
100
<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:
0.0102
Hom.:
71
Bravo
AF:
0.0127

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:9
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:4
-
Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

-
Clinical Genetics, Academic Medical Center
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

-
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Aug 23, 2011
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

-23_-15delGTCGCCGCC in exon 1 of LAMP2: This variant is located in the 5?untrans lated region (5?UTR) of the LAMP2 gene. It has not been reported in the literat ure but has been detected by our lab in at least 1% of individuals sequenced. A t this frequency this variant is most likely benign although we cannot exclude a modifying role. -

Danon disease Benign:2
-
Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Sep 23, 2024
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:1
Apr 18, 2017
Mayo Clinic Laboratories, Mayo Clinic
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Primary familial hypertrophic cardiomyopathy Benign:1
May 20, 2015
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Cardiomyopathy;C0878677:Danon disease Benign:1
Dec 04, 2012
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The variant is found in HCM panel(s). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
PhyloP100
0.14
Mutation Taster
=300/0
polymorphism (auto)

Splicing

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

Publications

Other links and lift over

dbSNP: rs193922648; hg19: chrX-119603038; COSMIC: COSV52351259; API