chr2-46612250-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6BP7

The NM_002643.4(PIGF):​c.415C>T​(p.Leu139=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000396 in 1,344,538 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 (no stars).

Frequency

Genomes: 𝑓 0.00026 ( 0 hom., cov: 31)
Exomes 𝑓: 0.00041 ( 0 hom. )

Consequence

PIGF
NM_002643.4 synonymous

Scores

2

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 3.06
Variant links:
Genes affected
PIGF (HGNC:8962): (phosphatidylinositol glycan anchor biosynthesis class F) This gene encodes a protein involved in glycosylphosphatidylinositol (GPI)-anchor biosynthesis. The GPI-anchor, a glycolipid containing three mannose molecules in its core backbone, is found on many blood cells where it serves to anchor proteins to the cell surface. The encoded protein and another GPI synthesis protein, PIGO, function in the transfer of ethanolaminephosphate to the third mannose in GPI. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.41).
BP6
Variant 2-46612250-G-A is Benign according to our data. Variant chr2-46612250-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 3353967.Status of the report is no_assertion_criteria_provided, 0 stars.
BP7
Synonymous conserved (PhyloP=3.06 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PIGFNM_002643.4 linkuse as main transcriptc.415C>T p.Leu139= synonymous_variant 4/6 ENST00000281382.11 NP_002634.1
PIGFNM_173074.3 linkuse as main transcriptc.415C>T p.Leu139= synonymous_variant 4/7 NP_775097.1
PIGFXM_011532908.4 linkuse as main transcriptc.415C>T p.Leu139= synonymous_variant 4/7 XP_011531210.1
PIGFXM_005264369.4 linkuse as main transcriptc.415C>T p.Leu139= synonymous_variant 4/6 XP_005264426.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PIGFENST00000281382.11 linkuse as main transcriptc.415C>T p.Leu139= synonymous_variant 4/61 NM_002643.4 ENSP00000281382 P1Q07326-1

Frequencies

GnomAD3 genomes
AF:
0.000264
AC:
40
AN:
151424
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.000194
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000456
Gnomad OTH
AF:
0.000481
GnomAD3 exomes
AF:
0.000193
AC:
20
AN:
103420
Hom.:
0
AF XY:
0.000144
AC XY:
8
AN XY:
55572
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000431
Gnomad OTH exome
AF:
0.000397
GnomAD4 exome
AF:
0.000412
AC:
492
AN:
1193114
Hom.:
0
Cov.:
17
AF XY:
0.000380
AC XY:
225
AN XY:
591900
show subpopulations
Gnomad4 AFR exome
AF:
0.0000815
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000689
Gnomad4 FIN exome
AF:
0.0000653
Gnomad4 NFE exome
AF:
0.000505
Gnomad4 OTH exome
AF:
0.000182
GnomAD4 genome
AF:
0.000264
AC:
40
AN:
151424
Hom.:
0
Cov.:
31
AF XY:
0.000325
AC XY:
24
AN XY:
73886
show subpopulations
Gnomad4 AFR
AF:
0.000194
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000456
Gnomad4 OTH
AF:
0.000481
Alfa
AF:
0.000290
Hom.:
0
Bravo
AF:
0.000219

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

PIGF-related condition Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesJul 10, 2024This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.41
CADD
Benign
9.2
DANN
Benign
0.91

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

Publications

LitVar

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

Other links and lift over

dbSNP: rs370735799; hg19: chr2-46839389; API