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chr9-136979999-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_000954.6(PTGDS):​c.385G>A​(p.Ala129Thr) variant causes a missense change. The variant allele was found at a frequency of 0.00000186 in 1,613,020 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

PTGDS
NM_000954.6 missense

Scores

1
7
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.93
Variant links:
Genes affected
PTGDS (HGNC:9592): (prostaglandin D2 synthase) The protein encoded by this gene is a glutathione-independent prostaglandin D synthase that catalyzes the conversion of prostaglandin H2 (PGH2) to postaglandin D2 (PGD2). PGD2 functions as a neuromodulator as well as a trophic factor in the central nervous system. PGD2 is also involved in smooth muscle contraction/relaxation and is a potent inhibitor of platelet aggregation. This gene is preferentially expressed in brain. Studies with transgenic mice overexpressing this gene suggest that this gene may be also involved in the regulation of non-rapid eye movement sleep. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PTGDSNM_000954.6 linkuse as main transcriptc.385G>A p.Ala129Thr missense_variant 4/7 ENST00000371625.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PTGDSENST00000371625.8 linkuse as main transcriptc.385G>A p.Ala129Thr missense_variant 4/71 NM_000954.6 P1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152144
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000159
AC:
4
AN:
250800
Hom.:
0
AF XY:
0.00000737
AC XY:
1
AN XY:
135644
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000579
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:
0.00000883
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1460876
Hom.:
0
Cov.:
32
AF XY:
0.00000138
AC XY:
1
AN XY:
726768
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152144
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74320
show subpopulations
Gnomad4 AFR
AF:
0.0000241
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:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.00000824
AC:
1

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 GeneticsNov 03, 2023The c.385G>A (p.A129T) alteration is located in exon 4 (coding exon 4) of the PTGDS gene. This alteration results from a G to A substitution at nucleotide position 385, causing the alanine (A) at amino acid position 129 to be replaced by a threonine (T). 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
Uncertain
0.46
BayesDel_addAF
Benign
-0.20
T
BayesDel_noAF
Benign
-0.36
CADD
Uncertain
24
DANN
Uncertain
1.0
Eigen
Benign
0.055
Eigen_PC
Benign
-0.035
FATHMM_MKL
Uncertain
0.84
D
LIST_S2
Benign
0.78
T;.;T
M_CAP
Benign
0.062
D
MetaRNN
Uncertain
0.60
D;D;D
MetaSVM
Uncertain
-0.21
T
MutationTaster
Benign
1.0
D;D
PrimateAI
Benign
0.48
T
PROVEAN
Uncertain
-3.4
D;D;.
REVEL
Uncertain
0.29
Sift
Benign
0.032
D;D;.
Sift4G
Pathogenic
0.0
D;T;D
Polyphen
1.0
.;D;.
Vest4
0.67
MutPred
0.79
.;Gain of phosphorylation at A129 (P = 0.1001);.;
MVP
0.19
MPC
0.95
ClinPred
0.72
D
GERP RS
4.8
Varity_R
0.48
gMVP
0.80

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: rs778530805; hg19: chr9-139874451; API