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GeneBe

2-196842706-A-G

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 2P and 10B. PM2BP4_StrongBP6_ModerateBS1

The NM_024989.4(PGAP1):c.2630+15T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000244 in 1,373,220 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.00032 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00024 ( 1 hom. )

Consequence

PGAP1
NM_024989.4 intron

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.165
Variant links:
Genes affected
PGAP1 (HGNC:25712): (post-GPI attachment to proteins inositol deacylase 1) The protein encoded by this gene functions early in the glycosylphosphatidylinositol (GPI) biosynthetic pathway, catalyzing the inositol deacylation of GPI. The encoded protein is required for the production of GPI that can attach to proteins, and this may be an important factor in the transport of GPI-anchored proteins from the endoplasmic reticulum to the Golgi. Defects in this gene are a cause an autosomal recessive form of cognitive impairment. [provided by RefSeq, Jul 2017]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.6).
BP6
Variant 2-196842706-A-G is Benign according to our data. Variant chr2-196842706-A-G is described in ClinVar as [Benign]. Clinvar id is 1630202.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population amr. gnomad4_exome allele frequency = 0.000235 (287/1221110) while in subpopulation AMR AF= 0.00219 (69/31558). AF 95% confidence interval is 0.00177. There are 1 homozygotes in gnomad4_exome. There are 148 alleles in male gnomad4_exome subpopulation. Median coverage is 17. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PGAP1NM_024989.4 linkuse as main transcriptc.2630+15T>C intron_variant ENST00000354764.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PGAP1ENST00000354764.9 linkuse as main transcriptc.2630+15T>C intron_variant 1 NM_024989.4 P1Q75T13-1

Frequencies

GnomAD3 genomes
AF:
0.000316
AC:
48
AN:
152110
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000654
Gnomad ASJ
AF:
0.00836
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000883
Gnomad OTH
AF:
0.000956
GnomAD3 exomes
AF:
0.000584
AC:
121
AN:
207322
Hom.:
1
AF XY:
0.000433
AC XY:
49
AN XY:
113192
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00268
Gnomad ASJ exome
AF:
0.00595
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000600
Gnomad OTH exome
AF:
0.00169
GnomAD4 exome
AF:
0.000235
AC:
287
AN:
1221110
Hom.:
1
Cov.:
17
AF XY:
0.000241
AC XY:
148
AN XY:
615100
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00219
Gnomad4 ASJ exome
AF:
0.00645
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000506
Gnomad4 OTH exome
AF:
0.000527
GnomAD4 genome
AF:
0.000316
AC:
48
AN:
152110
Hom.:
0
Cov.:
32
AF XY:
0.000296
AC XY:
22
AN XY:
74328
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.000654
Gnomad4 ASJ
AF:
0.00836
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000883
Gnomad4 OTH
AF:
0.000956
Alfa
AF:
0.000984
Hom.:
1
Bravo
AF:
0.000480

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Intellectual disability, autosomal recessive 42 Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeDec 01, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.60
Cadd
Benign
10
Dann
Benign
0.89
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

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

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

Other links and lift over

dbSNP: rs375452864; hg19: chr2-197707430; API