Variant chr9-101477055-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_032342.3(PGAP4):c.38G>A(p.Arg13Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000934 in 1,606,002 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R13G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

PGAP4
NM_032342.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.18

Variant links:

Genes affected

PGAP4 (HGNC:28180): (post-GPI attachment to proteins GalNAc transferase 4) Enables glycosyltransferase activity. Involved in GPI anchor biosynthetic process. Located in Golgi membrane. [provided by Alliance of Genome Resources, Apr 2022]

PGAP4 links:

TMEM246-AS1 (HGNC:51191): (TMEM246 antisense RNA 1)

TMEM246-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.108514994).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PGAP4	NM_032342.3 linkuse as main transcript	c.38G>A	p.Arg13Gln	missense_variant	2/2	ENST00000374848.8
TMEM246-AS1	NR_121573.1 linkuse as main transcript	n.337+2013C>T		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PGAP4	ENST00000374848.8 linkuse as main transcript	c.38G>A	p.Arg13Gln	missense_variant	2/2	1	NM_032342.3	P1
TMEM246-AS1	ENST00000424154.6 linkuse as main transcript	n.212-2785C>T		intron_variant, non_coding_transcript_variant		3

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152096

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000124

AC:

AN:

242690

Hom.:

AF XY:

0.00000762

AC XY:

AN XY:

131202

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:

0.0000182

Gnomad OTH exome

AF:

0.000170

GnomAD4 exome

AF:

0.00000963

AC:

AN:

1453906

Hom.:

Cov.:

AF XY:

0.00000968

AC XY:

AN XY:

722906

show subpopulations

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:

0.0000118

Gnomad4 FIN exome

AF:

0.0000188

Gnomad4 NFE exome

AF:

0.00000812

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152096

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74302

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000434

Hom.:

Bravo

AF:

0.0000340

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Apr 26, 2023

The c.38G>A (p.R13Q) alteration is located in exon 2 (coding exon 1) of the TMEM246 gene. This alteration results from a G to A substitution at nucleotide position 38, causing the arginine (R) at amino acid position 13 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.095

BayesDel_noAF

Benign

-0.35

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.016

T;T;T

Eigen

Benign

-0.21

Eigen_PC

Benign

0.026

FATHMM_MKL

Uncertain

0.92

M_CAP

Benign

0.0017

MetaRNN

Benign

0.11

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.20

N;N;N

MutationTaster

Benign

0.84

D;D;D

PrimateAI

Uncertain

0.54

PROVEAN

Benign

-0.30

N;N;N

REVEL

Benign

0.028

Sift

Benign

0.15

T;T;T

Sift4G

Benign

0.53

T;T;T

Polyphen

0.040

B;B;B

Vest4

0.13

MVP

0.092

MPC

0.57

ClinPred

0.15

GERP RS

4.7

Varity_R

0.11

gMVP

0.47

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over