rs371549948

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PM5PP3_Moderate

The NM_033419.5(PGAP3):​c.314C>T​(p.Pro105Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000062 in 1,611,916 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P105R) has been classified as Pathogenic.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

PGAP3
NM_033419.5 missense

Scores

8
8
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.66

Publications

5 publications found
Variant links:
Genes affected
PGAP3 (HGNC:23719): (post-GPI attachment to proteins phospholipase 3) This gene encodes a glycosylphosphatidylinositol (GPI)-specific phospholipase that primarily localizes to the Golgi apparatus. This ubiquitously expressed gene is predicted to encode a seven-transmembrane protein that removes unsaturated fatty acids from the sn-2 position of GPI. The remodeling of the constituent fatty acids on GPI is thought to be important for the proper association between GPI-anchored proteins and lipid rafts. The tethering of proteins to plasma membranes via posttranslational GPI-anchoring is thought to play a role in protein sorting and trafficking. Mutations in this gene cause an autosomal recessive form of neurologic hyperphosphatasia with cognitive disability (HPMRS4). Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Jul 2017]
PGAP3 Gene-Disease associations (from GenCC):
  • hyperphosphatasia with intellectual disability syndrome 4
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, ClinGen, Labcorp Genetics (formerly Invitae)
  • hyperphosphatasia-intellectual disability syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr17-39684715-G-C is described in ClinVar as Pathogenic. ClinVar VariationId is 125440.Status of the report is no_assertion_criteria_provided, 0 stars.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.857

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_033419.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PGAP3
NM_033419.5
MANE Select
c.314C>Tp.Pro105Leu
missense
Exon 3 of 8NP_219487.3
PGAP3
NM_001291728.2
c.314C>Tp.Pro105Leu
missense
Exon 3 of 7NP_001278657.1Q96FM1-3
PGAP3
NM_001291730.2
c.314C>Tp.Pro105Leu
missense
Exon 3 of 6NP_001278659.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PGAP3
ENST00000300658.9
TSL:1 MANE Select
c.314C>Tp.Pro105Leu
missense
Exon 3 of 8ENSP00000300658.4Q96FM1-1
PGAP3
ENST00000429199.6
TSL:2
c.314C>Tp.Pro105Leu
missense
Exon 3 of 7ENSP00000415765.2Q96FM1-3
PGAP3
ENST00000579146.5
TSL:2
c.314C>Tp.Pro105Leu
missense
Exon 3 of 4ENSP00000463234.1J3QKU0

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152250
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000409
AC:
1
AN:
244690
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.0000634
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000548
AC:
8
AN:
1459666
Hom.:
0
Cov.:
30
AF XY:
0.00000551
AC XY:
4
AN XY:
726038
show subpopulations
African (AFR)
AF:
0.0000898
AC:
3
AN:
33392
American (AMR)
AF:
0.0000226
AC:
1
AN:
44328
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26044
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39602
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85872
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53280
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5750
European-Non Finnish (NFE)
AF:
0.00000270
AC:
3
AN:
1111116
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60282
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.481
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152250
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74384
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41472
American (AMR)
AF:
0.0000654
AC:
1
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5202
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10632
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68034
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.725
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000227
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000165
AC:
2

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.75
BayesDel_addAF
Pathogenic
0.46
D
BayesDel_noAF
Pathogenic
0.42
CADD
Pathogenic
31
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.71
D
Eigen
Uncertain
0.45
Eigen_PC
Uncertain
0.39
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.96
D
M_CAP
Benign
0.074
D
MetaRNN
Pathogenic
0.86
D
MetaSVM
Benign
-0.52
T
MutationAssessor
Uncertain
2.2
M
PhyloP100
8.7
PrimateAI
Uncertain
0.64
T
PROVEAN
Pathogenic
-9.3
D
REVEL
Uncertain
0.49
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.93
MVP
0.49
MPC
1.1
ClinPred
1.0
D
GERP RS
4.5
PromoterAI
0.0066
Neutral
Varity_R
0.89
gMVP
0.88
Mutation Taster
=4/96
disease causing

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

Other links and lift over

dbSNP: rs371549948; hg19: chr17-37840968; API