X-101398962-T-C

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000169.3(GLA):c.640-16A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.131 in 1,180,033 control chromosomes in the GnomAD database, including 7,341 homozygotes. There are 50,881 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). There are indicators that this mutation may affect the branch point..

Frequency

Genomes: 𝑓 0.13 ( 682 hom., 4319 hem., cov: 23)

Exomes 𝑓: 0.13 ( 6659 hom. 46562 hem. )

Consequence

GLA
NM_000169.3 intron

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:14

Conservation

PhyloP100: -0.649

Publications

25 publications found

Variant links:

Genes affected

GLA (HGNC:4296): (galactosidase alpha) This gene encodes a homodimeric glycoprotein that hydrolyses the terminal alpha-galactosyl moieties from glycolipids and glycoproteins. This enzyme predominantly hydrolyzes ceramide trihexoside, and it can catalyze the hydrolysis of melibiose into galactose and glucose. A variety of mutations in this gene affect the synthesis, processing, and stability of this enzyme, which causes Fabry disease, a rare lysosomal storage disorder that results from a failure to catabolize alpha-D-galactosyl glycolipid moieties. [provided by RefSeq, Jul 2008]

GLA links:

RPL36A-HNRNPH2 (HGNC:48349): (RPL36A-HNRNPH2 readthrough) This locus represents naturally occurring read-through transcription between the neighboring ribosomal protein L36a and heterogeneous nuclear ribonucleoprotein H2 (H') genes on chromosome X. The read-through transcript produces a protein with similarity to the protein encoded by the upstream locus, ribosomal protein L36a. Alternatively spliced transcript variants have been identified. [provided by RefSeq, Jan 2011]

RPL36A-HNRNPH2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

This position, referring to a specific DNA site, is a probable branch point but is likely benign (scored 1 / 10, using the threshold of <=3). The score ranges from 0 to 10, with values ≤3 considered benign and >5 classified as pathogenic. Computational evidence support a benign effect (BayesDel_noAF=-0.89).

BP6

Variant X-101398962-T-C is Benign according to our data. Variant chrX-101398962-T-C is described in ClinVar as Benign. ClinVar VariationId is 92559.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BA1

GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.291 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GLA	NM_000169.3 link	c.640-16A>G		intron_variant	Intron 4 of 6	ENST00000218516.4	NP_000160.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GLA	ENST00000218516.4 link	c.640-16A>G		intron_variant	Intron 4 of 6	1	NM_000169.3	ENSP00000218516.4
RPL36A-HNRNPH2	ENST00000409170.3 link	c.300+3505T>C		intron_variant	Intron 4 of 4	4		ENSP00000386655.4

Frequencies

GnomAD3 genomes

AF:

0.128

AC:

14288

AN:

111891

Hom.:

682

Cov.:

show subpopulations

Gnomad AFR

AF:

0.147

Gnomad AMI

AF:

0.0768

Gnomad AMR

AF:

0.0998

Gnomad ASJ

AF:

0.133

Gnomad EAS

AF:

0.0871

Gnomad SAS

AF:

0.310

Gnomad FIN

AF:

0.0901

Gnomad MID

AF:

0.139

Gnomad NFE

AF:

0.121

Gnomad OTH

AF:

0.103

GnomAD2 exomes

AF:

0.141

AC:

25883

AN:

183214

AF XY:

0.148

show subpopulations

Gnomad AFR exome

AF:

0.153

Gnomad AMR exome

AF:

0.136

Gnomad ASJ exome

AF:

0.125

Gnomad EAS exome

AF:

0.0849

Gnomad FIN exome

AF:

0.0923

Gnomad NFE exome

AF:

0.120

Gnomad OTH exome

AF:

0.130

GnomAD4 exome

AF:

0.131

AC:

139866

AN:

1068089

Hom.:

6659

Cov.:

AF XY:

0.138

AC XY:

46562

AN XY:

338483

show subpopulations

African (AFR)

AF:

0.152

AC:

3931

AN:

25805

American (AMR)

AF:

0.131

AC:

4611

AN:

35177

Ashkenazi Jewish (ASJ)

AF:

0.129

AC:

2474

AN:

19185

East Asian (EAS)

AF:

0.0815

AC:

2451

AN:

30092

South Asian (SAS)

AF:

0.307

AC:

16385

AN:

53373

European-Finnish (FIN)

AF:

0.0933

AC:

3779

AN:

40485

Middle Eastern (MID)

AF:

0.101

AC:

304

AN:

3016

European-Non Finnish (NFE)

AF:

0.122

AC:

99784

AN:

815876

Other (OTH)

AF:

0.136

AC:

6147

AN:

45080

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.464

Heterozygous variant carriers

3539

7078

10618

14157

17696

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

3856

7712

11568

15424

19280

<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:

0.128

AC:

14297

AN:

111944

Hom.:

682

Cov.:

AF XY:

0.126

AC XY:

4319

AN XY:

34144

show subpopulations

African (AFR)

AF:

0.148

AC:

4548

AN:

30821

American (AMR)

AF:

0.0998

AC:

1052

AN:

10546

Ashkenazi Jewish (ASJ)

AF:

0.133

AC:

353

AN:

2645

East Asian (EAS)

AF:

0.0868

AC:

310

AN:

3571

South Asian (SAS)

AF:

0.309

AC:

829

AN:

2686

European-Finnish (FIN)

AF:

0.0901

AC:

548

AN:

6079

Middle Eastern (MID)

AF:

0.144

AC:

AN:

216

European-Non Finnish (NFE)

AF:

0.121

AC:

6416

AN:

53175

Other (OTH)

AF:

0.103

AC:

158

AN:

1528

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.503

Heterozygous variant carriers

469

938

1408

1877

2346

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

164

328

492

656

820

<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:

0.133

Hom.:

1132

Bravo

AF:

0.129

ClinVar

Significance: Benign

Submissions summary: Benign:14

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:7

Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

Apr 17, 2018

Eurofins Ntd Llc (ga)

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Genome Diagnostics Laboratory, University Medical Center Utrecht

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

Oct 16, 2020

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Variant summary: GLA c.640-16A>G alters a nucleotide located close to a canonical splice site and therefore could affect mRNA splicing, leading to a significantly altered protein sequence. 4/4 computational tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. The variant allele was found at a frequency of 0.14 in 183214 control chromosomes in the gnomAD database, including 1381 homozygotes. The observed variant frequency is approximately 19.98 fold of the estimated maximal expected allele frequency for a pathogenic variant in GLA causing Cardiomyopathy phenotype (0.0071), strongly suggesting that the variant is benign. Two clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. All laboratories classified the variant as benign. Based on the evidence outlined above, the variant was classified as benign.

Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center

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

Fabry disease

Benign:3

Sep 15, 2025

Genomenon, Inc, Genomenon, Inc

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:curation

GLA c.640-16A>G is an intronic variant located in intron 4. This variant has been reported in the published literature (PMID:35971858;25281798). This variant is present at high allele frequency in population databases. In conclusion, we classify GLA c.640-16A>G as a benign variant.

Jul 15, 2021

Genome-Nilou Lab

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Feb 04, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

not provided

Benign:3

Dec 15, 2015

Mayo Clinic Laboratories, Mayo Clinic

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

Breakthrough Genomics, Breakthrough Genomics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:not provided

Mar 03, 2015

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Hypertrophic cardiomyopathy

Benign:1

Sep 29, 2022

Cohesion Phenomics

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.89

CADD

Benign

0.061

(source)

DANN

Benign

0.36

PhyloP100

-0.65

BranchPoint Hunter

1.0

Mutation Taster

=100/0

polymorphism (auto)

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

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

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

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