rs397516735

Variant names:

• chrX-120456676-C-A
• rs397516735
• NM_002294.3:c.158G>T
• LAMP2 p.Arg53Leu

Your query was ambiguous. Multiple possible variants found:

• chrX-120456676-C-A
• chrX-120456676-C-T
• chrX-120456676-C-G

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_002294.3(LAMP2):​c.158G>T​(p.Arg53Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000291 in 1,030,671 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R53C) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 22)
  • Exomes 𝑓: 0.0000029 (0 hom. 0 hem.)
• Consequence: LAMP2 NM_002294.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -4.44
• Publications: 1 publications found

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: G2P, Genomics England PanelApp, ClinGen, Labcorp Genetics (formerly Invitae), Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.16091472).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002294.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LAMP2	NM_002294.3	MANE Select	c.158G>T	p.Arg53Leu	missense	Exon 2 of 9	NP_002285.1	P13473-1
	LAMP2	NM_001122606.1		c.158G>T	p.Arg53Leu	missense	Exon 2 of 9	NP_001116078.1	P13473-3
	LAMP2	NM_013995.2		c.158G>T	p.Arg53Leu	missense	Exon 2 of 9	NP_054701.1	P13473-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LAMP2	ENST00000200639.9	TSL:1 MANE Select	c.158G>T	p.Arg53Leu	missense	Exon 2 of 9	ENSP00000200639.4	P13473-1
	LAMP2	ENST00000434600.6	TSL:1	c.158G>T	p.Arg53Leu	missense	Exon 2 of 9	ENSP00000408411.2	P13473-3
	LAMP2	ENST00000371335.4	TSL:1	c.158G>T	p.Arg53Leu	missense	Exon 2 of 9	ENSP00000360386.4	P13473-2

Frequencies

GnomAD3 genomes Cov.: 22

GnomAD4 exome AF: 0.00000291 AC: 3 AN: 1030671 Hom.: 0 Cov.: 19 AF XY: 0.00 AC XY: 0 AN XY: 315889

African (AFR) AF: 0.00 AC: 0 AN: 25109

American (AMR) AF: 0.00 AC: 0 AN: 34386

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 18764

East Asian (EAS) AF: 0.00 AC: 0 AN: 29707

South Asian (SAS) AF: 0.00 AC: 0 AN: 49992

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 39894

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 2936

European-Non Finnish (NFE) AF: 0.00000382 AC: 3 AN: 786190

Other (OTH) AF: 0.00 AC: 0 AN: 43693

GnomAD4 genome Cov.: 22

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Danon disease (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.10
CardioboostCm	Benign	0.0034
BayesDel_addAF	Benign	-0.42	T
BayesDel_noAF	Benign	-0.84
CADD	Benign	0.013
DANN	Benign	0.82
DEOGEN2	Benign	0.40	T
FATHMM_MKL	Benign	0.012	N
LIST_S2	Benign	0.57	T
M_CAP	Benign	0.0072	T
MetaRNN	Benign	0.16	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.4	L
PhyloP100		-4.4
PrimateAI	Benign	0.23	T
PROVEAN	Benign	-2.0	N
REVEL	Benign	0.056
Sift	Benign	0.29	T
Sift4G	Benign	0.29	T
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.10
gMVP		0.51
Mutation Taster		=95/5	polymorphism

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

dbSNP: rs397516735;

hg19: chrX-119590531;