chr4-94334521-C-T

Variant summary

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

The NM_014485.3(HPGDS):​c.109G>A​(p.Ala37Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00002 in 1,446,456 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

HPGDS
NM_014485.3 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.60
Variant links:
Genes affected
HPGDS (HGNC:17890): (hematopoietic prostaglandin D synthase) Prostaglandin-D synthase is a sigma class glutathione-S-transferase family member. The enzyme catalyzes the conversion of PGH2 to PGD2 and plays a role in the production of prostanoids in the immune system and mast cells. The presence of this enzyme can be used to identify the differentiation stage of human megakaryocytes. [provided by RefSeq, Jul 2008]

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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=0.07879579).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
HPGDSNM_014485.3 linkuse as main transcriptc.109G>A p.Ala37Thr missense_variant 2/6 ENST00000295256.10
HPGDSXM_005262932.4 linkuse as main transcriptc.109G>A p.Ala37Thr missense_variant 2/5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
HPGDSENST00000295256.10 linkuse as main transcriptc.109G>A p.Ala37Thr missense_variant 2/61 NM_014485.3 P1
ENST00000667612.1 linkuse as main transcriptn.2871-8423C>T intron_variant, non_coding_transcript_variant
HPGDSENST00000506331.1 linkuse as main transcriptn.200G>A non_coding_transcript_exon_variant 2/23
HPGDSENST00000514774.1 linkuse as main transcriptn.189G>A non_coding_transcript_exon_variant 2/54

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000834
AC:
2
AN:
239732
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
129490
show subpopulations
Gnomad AFR exome
AF:
0.0000640
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:
0.00000905
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000200
AC:
29
AN:
1446456
Hom.:
0
Cov.:
31
AF XY:
0.0000167
AC XY:
12
AN XY:
719008
show subpopulations
Gnomad4 AFR exome
AF:
0.0000305
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:
0.0000253
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000329
Hom.:
0
Bravo
AF:
0.00000378

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 29, 2021The c.109G>A (p.A37T) alteration is located in exon 2 (coding exon 1) of the HPGDS gene. This alteration results from a G to A substitution at nucleotide position 109, causing the alanine (A) at amino acid position 37 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
Benign
0.080
BayesDel_addAF
Benign
-0.41
T
BayesDel_noAF
Benign
-0.64
CADD
Benign
18
DANN
Uncertain
0.98
DEOGEN2
Benign
0.024
T
Eigen
Benign
-0.39
Eigen_PC
Benign
-0.27
FATHMM_MKL
Benign
0.28
N
LIST_S2
Benign
0.69
T
M_CAP
Benign
0.0032
T
MetaRNN
Benign
0.079
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.5
L
MutationTaster
Benign
0.98
D
PrimateAI
Benign
0.39
T
PROVEAN
Benign
-0.91
N
REVEL
Benign
0.046
Sift
Benign
0.40
T
Sift4G
Benign
0.47
T
Polyphen
0.0
B
Vest4
0.25
MVP
0.20
MPC
0.0089
ClinPred
0.066
T
GERP RS
3.8
Varity_R
0.13
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.

Other links and lift over

dbSNP: rs933311564; hg19: chr4-95255672; API