16-372649-G-A

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_021259.3(PGAP6):​c.1981C>T​(p.Pro661Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000093 in 1,612,292 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

PGAP6
NM_021259.3 missense

Scores

10
6
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.97
Variant links:
Genes affected
PGAP6 (HGNC:17205): (post-GPI attachment to proteins 6) Predicted to enable phospholipase A2 activity. Located in extracellular exosome and lysosomal membrane. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.946

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PGAP6NM_021259.3 linkuse as main transcriptc.1981C>T p.Pro661Ser missense_variant 12/13 ENST00000431232.7 NP_067082.2 Q9HCN3
PGAP6XM_047434413.1 linkuse as main transcriptc.1402C>T p.Pro468Ser missense_variant 13/14 XP_047290369.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PGAP6ENST00000431232.7 linkuse as main transcriptc.1981C>T p.Pro661Ser missense_variant 12/131 NM_021259.3 ENSP00000401338.2 Q9HCN3
PGAP6ENST00000250930.7 linkuse as main transcriptc.1402C>T p.Pro468Ser missense_variant 12/132 ENSP00000250930.3 K4DI83
PGAP6ENST00000448854.1 linkuse as main transcriptc.625C>T p.Pro209Ser missense_variant 5/52 ENSP00000401931.1 H7C1S0
PGAP6ENST00000424078.5 linkuse as main transcriptc.421-366C>T intron_variant 3 ENSP00000397620.1 H0Y5B2

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152152
Hom.:
0
Cov.:
33
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:
0.00000400
AC:
1
AN:
249862
Hom.:
0
AF XY:
0.00000739
AC XY:
1
AN XY:
135396
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:
0.00000886
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000959
AC:
14
AN:
1460140
Hom.:
0
Cov.:
31
AF XY:
0.00000964
AC XY:
7
AN XY:
726350
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000126
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152152
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74328
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
Bravo
AF:
0.00000378
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

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 submitterclinical testingAmbry GeneticsJul 05, 2023The c.1981C>T (p.P661S) alteration is located in exon 12 (coding exon 12) of the TMEM8A gene. This alteration results from a C to T substitution at nucleotide position 1981, causing the proline (P) at amino acid position 661 to be replaced by a serine (S). 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
Pathogenic
0.82
BayesDel_addAF
Pathogenic
0.36
D
BayesDel_noAF
Pathogenic
0.28
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Benign
0.40
T;.;.
Eigen
Pathogenic
0.72
Eigen_PC
Uncertain
0.62
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.91
D;D;D
M_CAP
Uncertain
0.087
D
MetaRNN
Pathogenic
0.95
D;D;D
MetaSVM
Uncertain
-0.036
T
MutationAssessor
Pathogenic
3.3
M;.;.
PrimateAI
Benign
0.41
T
PROVEAN
Pathogenic
-7.2
D;D;D
REVEL
Pathogenic
0.73
Sift
Pathogenic
0.0
D;D;D
Sift4G
Pathogenic
0.0
D;D;D
Polyphen
1.0
D;.;.
Vest4
0.88
MutPred
0.83
Gain of relative solvent accessibility (P = 0.09);.;.;
MVP
0.73
MPC
0.30
ClinPred
1.0
D
GERP RS
4.0
Varity_R
0.83
gMVP
0.85

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs752798057; hg19: chr16-422649; API