chrX-101397870-G-T

Variant names:

• chrX-101397870-G-T
• rs730880442
• NM_000169.3:c.1229C>A

Variant summary

Our verdict is Pathogenic. The variant received 19 ACMG points: 19P and 0B. PM1 PM2 PM5 PP2 PP3_Strong PP5_Very_Strong

The NM_000169.3(GLA):​c.1229C>A​(p.Thr410Lys) variant causes a missense change. 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 Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T410I) has been classified as Likely pathogenic.

• Frequency:
  • Genomes: not found (cov: 23)
  • Exomes 𝑓: 0.0 (0 hom. 0 hem.)
  • Failed GnomAD Quality Control
• Consequence: GLA NM_000169.3 missense
• Clinical Significance: Likely pathogenic criteria provided, multiple submitters, no conflicts P:2
• Conservation: PhyloP100: 6.94
• Publications: 5 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 19 ACMG points.

• PM1: In a hotspot region, there are 17 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 14 uncertain in NM_000169.3
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chrX-101397870-G-A is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 222643.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 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, 0.982
• PP5: Variant X-101397870-G-T is Pathogenic according to our data. Variant chrX-101397870-G-T is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 180833.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000169.3. 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
	GLA	NM_000169.3	MANE Select	c.1229C>A	p.Thr410Lys	missense	Exon 7 of 7	NP_000160.1
	GLA	NM_001406747.1		c.1352C>A	p.Thr451Lys	missense	Exon 8 of 8	NP_001393676.1
	RPL36A-HNRNPH2	NM_001199973.2		c.300+2413G>T		intron	N/A	NP_001186902.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GLA	ENST00000218516.4	TSL:1 MANE Select	c.1229C>A	p.Thr410Lys	missense	Exon 7 of 7	ENSP00000218516.4
	RPL36A-HNRNPH2	ENST00000409170.3	TSL:4	c.300+2413G>T		intron	N/A	ENSP00000386655.4
	GLA	ENST00000649178.1		c.1352C>A	p.Thr451Lys	missense	Exon 8 of 8	ENSP00000498186.1

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1093038 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 358558

African (AFR) AF: 0.00 AC: 0 AN: 26328

American (AMR) AF: 0.00 AC: 0 AN: 35200

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 19349

East Asian (EAS) AF: 0.00 AC: 0 AN: 30178

South Asian (SAS) AF: 0.00 AC: 0 AN: 54036

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 40532

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4128

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 837371

Other (OTH) AF: 0.00 AC: 0 AN: 45916

GnomAD4 genome Cov.: 23

Alfa AF: 0.00 Hom.: 0

ClinVar

ClinVar submissions as Germline

Significance: Likely pathogenic

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
2	-	-	Fabry disease (2)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.43
CardioboostCm	Uncertain	0.11
BayesDel_addAF	Pathogenic	0.55	D
BayesDel_noAF	Pathogenic	0.56
CADD	Benign	23
DANN	Uncertain	0.98
DEOGEN2	Pathogenic	0.97	D
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Uncertain	0.88	D
M_CAP	Pathogenic	0.92	D
MetaRNN	Pathogenic	0.98	D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Uncertain	2.5	M
PhyloP100		6.9
PrimateAI	Benign	0.39	T
PROVEAN	Uncertain	-2.9	D
REVEL	Pathogenic	0.82
Sift	Uncertain	0.0030	D
Sift4G	Uncertain	0.0060	D
Polyphen		0.96	D
Vest4		0.87
MutPred		0.89		Gain of ubiquitination at T410 (P = 0.0289)
MVP		1.0
MPC		1.5
ClinPred		0.98	D
GERP RS		5.4
Varity_R		0.98
gMVP		0.99
Mutation Taster		=27/73	disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs730880442; hg19: chrX-100652858;