rs797045094

Variant names:

• chr10-89228375-G-A
• rs797045094
• NM_000235.4:c.253C>T

Your query was ambiguous. Multiple possible variants found:

• chr10-89228375-G-A
• chr10-89228375-G-T

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1 PM2 PP5_Moderate

The NM_000235.4(LIPA):​c.253C>T​(p.Gln85*) variant causes a stop gained change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 33)
• Consequence: LIPA NM_000235.4 stop_gained
• Clinical Significance: Pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 9.73

Genes affected

LIPA (HGNC:6617): (lipase A, lysosomal acid type) This gene encodes lipase A, the lysosomal acid lipase (also known as cholesterol ester hydrolase). This enzyme functions in the lysosome to catalyze the hydrolysis of cholesteryl esters and triglycerides. Mutations in this gene can result in Wolman disease and cholesteryl ester storage disease. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Jan 2014]

ACMG classification

Verdict is Pathogenic. Variant got 12 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 10-89228375-G-A is Pathogenic according to our data. Variant chr10-89228375-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 208594.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LIPA	NM_000235.4	c.253C>T	p.Gln85*	stop_gained	Exon 4 of 10	ENST00000336233.10	NP_000226.2
LIPA	NM_001127605.3	c.253C>T	p.Gln85*	stop_gained	Exon 4 of 10		NP_001121077.1
LIPA	XM_024448023.2	c.253C>T	p.Gln85*	stop_gained	Exon 4 of 10		XP_024303791.1
LIPA	NM_001288979.2	c.-96C>T		5_prime_UTR_variant	Exon 2 of 8		NP_001275908.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LIPA	ENST00000336233.10	c.253C>T	p.Gln85*	stop_gained	Exon 4 of 10	1	NM_000235.4	ENSP00000337354.5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

Lysosomal acid lipase deficiency Pathogenic:1

Feb 25, 2015

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.Gln85X variant in LIPA has not been previously reported in individuals with lysosomal acid lipase deficiency (LALD) and was absent from large population studies. This nonsense variant leads to a premature termination codon at position 85 which is predicted to lead to a truncated or absent protein. Complete loss of LIPA function is an established disease mechanism in LALD. In summary, this variant meets our criteria to be classified as pathogenic LALD in an autosomal recessive manner. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.62	D
BayesDel_noAF	Pathogenic	0.65
CADD	Pathogenic	41
DANN	Uncertain	1.0
Eigen	Pathogenic	1.1
Eigen_PC	Pathogenic	0.90
FATHMM_MKL	Pathogenic	0.99	D
Vest4		0.97
GERP RS		4.3
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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

Other links and lift over

dbSNP: rs797045094; hg19: chr10-90988132;