rs1555696947
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Variant summary
Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate
The NM_176787.5(PIGN):c.222-9A>G variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000623 in 1,604,464 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).
Frequency
Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000062 ( 0 hom. )
Consequence
PIGN
NM_176787.5 splice_polypyrimidine_tract, intron
NM_176787.5 splice_polypyrimidine_tract, intron
Scores
2
Clinical Significance
Conservation
PhyloP100: -0.341
Genes affected
PIGN (HGNC:8967): (phosphatidylinositol glycan anchor biosynthesis class N) This gene encodes a protein that is involved in glycosylphosphatidylinositol (GPI)-anchor biosynthesis. The GPI-anchor is a glycolipid found on many blood cells and serves to anchor proteins to the cell surface. This protein is expressed in the endoplasmic reticulum and transfers phosphoethanolamine (EtNP) to the first mannose of the GPI anchor. Two alternatively spliced variants, which encode an identical isoform, have been reported. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Likely_benign. Variant got -4 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
BP4
?
Computational evidence support a benign effect (BayesDel_noAF=-0.62).
BP6
?
Variant 18-62157817-T-C is Benign according to our data. Variant chr18-62157817-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 539556.Status of the report is criteria_provided_single_submitter, 1 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
PIGN | NM_176787.5 | c.222-9A>G | splice_polypyrimidine_tract_variant, intron_variant | ENST00000640252.2 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
PIGN | ENST00000640252.2 | c.222-9A>G | splice_polypyrimidine_tract_variant, intron_variant | 1 | NM_176787.5 | P1 |
Frequencies
GnomAD3 genomes ? AF: 0.00000657 AC: 1AN: 152162Hom.: 0 Cov.: 33
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GnomAD4 exome AF: 0.00000620 AC: 9AN: 1452302Hom.: 0 Cov.: 28 AF XY: 0.0000125 AC XY: 9AN XY: 721870
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GnomAD4 genome ? AF: 0.00000657 AC: 1AN: 152162Hom.: 0 Cov.: 33 AF XY: 0.0000135 AC XY: 1AN XY: 74330
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ClinVar
Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Multiple congenital anomalies-hypotonia-seizures syndrome 1 Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Invitae | Nov 30, 2017 | - - |
Computational scores
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BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at