chr17-36537715-C-CTGTT

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001346754.2(PIGW):​c.617_620dupTTTG​(p.Trp207fs) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)

Consequence

PIGW
NM_001346754.2 frameshift

Scores

Not classified

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.305
Variant links:
Genes affected
PIGW (HGNC:23213): (phosphatidylinositol glycan anchor biosynthesis class W) The protein encoded by this gene is an inositol acyltransferase that acylates the inositol ring of phosphatidylinositol. This occurs in the endoplasmic reticulum and is a step in the biosynthesis of glycosylphosphatidylinositol (GPI), which anchors many cell surface proteins to the membrane. Defects in this gene are a cause of the age-dependent epileptic encephalopathy West syndrome as well as a syndrome exhibiting hyperphosphatasia and cognitive disability (HPMRS5). [provided by RefSeq, Jul 2017]
MYO19 (HGNC:26234): (myosin XIX) Enables actin binding activity. Involved in regulation of cytokinesis and regulation of mitochondrial fission. Acts upstream of or within mitochondrion migration along actin filament. Located in cytosol and mitochondrial outer membrane. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PIGWNM_001346754.2 linkuse as main transcriptc.617_620dupTTTG p.Trp207fs frameshift_variant 2/2 ENST00000614443.2 NP_001333683.1 Q7Z7B1
PIGWNM_001346755.2 linkuse as main transcriptc.617_620dupTTTG p.Trp207fs frameshift_variant 2/2 NP_001333684.1 Q7Z7B1
PIGWNM_178517.5 linkuse as main transcriptc.617_620dupTTTG p.Trp207fs frameshift_variant 2/2 NP_848612.2 Q7Z7B1
MYO19XM_047436823.1 linkuse as main transcriptc.-295-3615_-295-3612dupAACA intron_variant XP_047292779.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PIGWENST00000614443.2 linkuse as main transcriptc.617_620dupTTTG p.Trp207fs frameshift_variant 2/21 NM_001346754.2 ENSP00000482202.1 Q7Z7B1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Cov.:
32
GnomAD4 genome
Cov.:
32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs753385776; hg19: chr17-34893564; API