X-133754180-TAAAAAA-TAAAAAAAAAA

Variant names:

• chrX-133754180-T-TAAAA
• NM_004484.4:c.338-8_338-5dupTTTT

Variant summary

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

The NM_004484.4(GPC3):​c.338-8_338-5dupTTTT variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 19)
  • Exomes 𝑓: 0.000018 (0 hom. 0 hem.)
• Consequence: GPC3 NM_004484.4 splice_region, intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.883

Genes affected

GPC3 (HGNC:4451): (glypican 3) Cell surface heparan sulfate proteoglycans are composed of a membrane-associated protein core substituted with a variable number of heparan sulfate chains. Members of the glypican-related integral membrane proteoglycan family (GRIPS) contain a core protein anchored to the cytoplasmic membrane via a glycosyl phosphatidylinositol linkage. These proteins may play a role in the control of cell division and growth regulation. The protein encoded by this gene can bind to and inhibit the dipeptidyl peptidase activity of CD26, and it can induce apoptosis in certain cell types. Deletion mutations in this gene are associated with Simpson-Golabi-Behmel syndrome, also known as Simpson dysmorphia syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2009]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GPC3	NM_004484.4	c.338-8_338-5dupTTTT		splice_region_variant, intron_variant	Intron 2 of 7	ENST00000370818.8	NP_004475.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GPC3	ENST00000370818.8	c.338-5_338-4insTTTT		splice_region_variant, intron_variant	Intron 2 of 7	1	NM_004484.4	ENSP00000359854.3

Frequencies

GnomAD3 genomes Cov.: 19

GnomAD4 exome AF: 0.0000184 AC: 16 AN: 867542 Hom.: 0 Cov.: 0 AF XY: 0.00 AC XY: 0 AN XY: 254352

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000244

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 19

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Splicing

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chrX-132888207;