11-3811261-T-G

Position:

• chr11-3811261-T-G

Variant summary

Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PVS1 PS1_Moderate PM2 PP5_Moderate

The NM_014489.4(PGAP2):​c.2T>G​(p.Met1?) variant causes a start lost change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: PGAP2 NM_014489.4 start_lost
• Clinical Significance: Pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 5.56

Genes affected

PGAP2 (HGNC:17893): (post-GPI attachment to proteins 2) The protein encoded by this gene plays a role in the maturation of glycosylphosphatidylinositol (GPI) anchors on GPI-anchored proteins. Mutations in this gene are associated with an autosomal recessive syndrome characterized by hyperphosphatasia and intellectual disability. [provided by RefSeq, Jul 2017]

LOC124902618 (HGNC:):

ACMG classification

Verdict is Pathogenic. Variant got 14 ACMG points.

• PVS1: Start lost variant, no new inframe start found.
• PS1: Another start lost variant in NM_014489.4 (PGAP2) was described as [Likely_pathogenic] in ClinVar as 1678531
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 11-3811261-T-G is Pathogenic according to our data. Variant chr11-3811261-T-G is described in ClinVar as [Pathogenic]. Clinvar id is 694699.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr11-3811261-T-G is described in Lovd as [Likely_pathogenic]. Variant chr11-3811261-T-G is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PGAP2	NM_014489.4	c.2T>G	p.Met1?	start_lost	2/7	ENST00000278243.9
LOC124902618	XR_007062559.1	n.456A>C		non_coding_transcript_exon_variant	3/3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PGAP2	ENST00000278243.9	c.2T>G	p.Met1?	start_lost	2/7	1	NM_014489.4	A1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

Hyperphosphatasia with intellectual disability syndrome 3 Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Institute for Genomic Statistics and Bioinformatics, University Hospital Bonn

-

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.45	D
BayesDel_noAF	Pathogenic	0.41
CADD	Uncertain	24
DANN	Uncertain	0.98
Eigen	Uncertain	0.60
Eigen_PC	Uncertain	0.64
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Benign	0.53	T;T;D;D;.;D;D;D;D
M_CAP	Uncertain	0.20	D
MetaRNN	Uncertain	0.54	D;D;D;D;D;D;D;D;D
MetaSVM	Uncertain	-0.10	T
MutationTaster	Benign	1.0	D;D;D;D;D;D;D;D;D;D
PrimateAI	Uncertain	0.69	T
PROVEAN	Benign	-1.8	N;N;.;.;.;N;N;N;N
REVEL	Benign	0.28
Sift	Uncertain	0.0010	D;D;.;.;.;D;D;D;D
Sift4G	Pathogenic	0.0	D;D;D;D;D;D;D;D;D
Polyphen		0.92	P;.;.;.;.;.;.;P;.
Vest4		0.91
MutPred		0.36		Gain of solvent accessibility (P = 0.0171);Gain of solvent accessibility (P = 0.0171);.;.;.;.;.;.;.;
MVP		0.58
ClinPred		0.99	D
GERP RS		5.8
Varity_R		0.91
gMVP		0.89

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		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: rs1590215915; hg19: chr11-3832491;