rs140329381

Variant names:

• chrX-101398504-T-A
• rs140329381
• NM_000169.3:c.865A>T

Your query was ambiguous. Multiple possible variants found:

• chrX-101398504-T-A
• chrX-101398504-T-C

Variant summary

Our verdict is Pathogenic. The variant received 12 ACMG points: 12P and 0B. PM1 PM2 PM5 PP2 PP3_Strong PP5

The NM_001406747.1(GLA):​c.988A>T​(p.Ile330Phe) variant causes a missense change involving the alteration of a non-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 Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I330V) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 23)
• Consequence: GLA NM_001406747.1 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:3 U:1
• Conservation: PhyloP100: 3.46
• Publications: 12 publications found

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]

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]

ACMG classification

Our verdict: Pathogenic. The variant received 12 ACMG points.

• PM1: In a hotspot region, there are 42 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 10 uncertain in NM_001406747.1
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chrX-101398503-A-C is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 4087559.Status of the report is criteria_provided_single_submitter, 1 stars.
• PP2: Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 218 curated pathogenic missense variants (we use a threshold of 10). The gene has 17 curated benign missense variants. Gene score misZ: 1.8759 (below the threshold of 3.09). Trascript score misZ: NaN (below the threshold of 3.09). GenCC associations: The gene is linked to Fabry disease.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.973
• PP5: Variant X-101398504-T-A is Pathogenic according to our data. Variant chrX-101398504-T-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 92568.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001406747.1. 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
	GLA	NM_000169.3	MANE Select	c.865A>T	p.Ile289Phe	missense	Exon 6 of 7	NP_000160.1
	GLA	NM_001406747.1		c.988A>T	p.Ile330Phe	missense	Exon 7 of 8	NP_001393676.1
	GLA	NM_001406748.1		c.865A>T	p.Ile289Phe	missense	Exon 6 of 6	NP_001393677.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GLA	ENST00000218516.4	TSL:1 MANE Select	c.865A>T	p.Ile289Phe	missense	Exon 6 of 7	ENSP00000218516.4
	RPL36A-HNRNPH2	ENST00000409170.3	TSL:4	c.300+3047T>A		intron	N/A	ENSP00000386655.4
	GLA	ENST00000649178.1		c.988A>T	p.Ile330Phe	missense	Exon 7 of 8	ENSP00000498186.1

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 23

ClinVar

ClinVar submissions as Germline

Significance: Conflicting classifications of pathogenicity

Revision: criteria provided, conflicting classifications

Pathogenic	VUS	Benign	Condition
1	1	-	Fabry disease (2)
2	-	-	not provided (2)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.48
CardioboostCm	Uncertain	0.87
BayesDel_addAF	Pathogenic	0.63	D
BayesDel_noAF	Pathogenic	0.67
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Pathogenic	0.96	D
FATHMM_MKL	Uncertain	0.90	D
LIST_S2	Uncertain	0.96	D
M_CAP	Pathogenic	0.90	D
MetaRNN	Pathogenic	0.97	D
MetaSVM	Pathogenic	0.98	D
MutationAssessor	Pathogenic	3.4	M
PhyloP100		3.5
PrimateAI	Uncertain	0.61	T
PROVEAN	Uncertain	-3.9	D
REVEL	Pathogenic	0.96
Sift	Uncertain	0.0010	D
Sift4G	Pathogenic	0.0010	D
Polyphen		1.0	D
Vest4		0.95
MutPred		0.87		Loss of catalytic residue at L294 (P = 0.0296)
MVP		1.0
MPC		2.1
ClinPred		1.0	D
GERP RS		4.7
Varity_R		0.99
gMVP		1.0
Mutation Taster		=0/100	disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs140329381; hg19: chrX-100653492;