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GeneBe

12-20369514-T-A

Variant summary

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

The NM_000921.5(PDE3A):c.230T>A(p.Leu77Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000213 in 1,408,036 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. L77L) has been classified as Benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

PDE3A
NM_000921.5 missense

Scores

1
7
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.54
Variant links:
Genes affected
PDE3A (HGNC:8778): (phosphodiesterase 3A) This gene encodes a member of the cGMP-inhibited cyclic nucleotide phosphodiesterase (cGI-PDE) family. cGI-PDE enzymes hydrolyze both cAMP and cGMP, and play critical roles in many cellular processes by regulating the amplitude and duration of intracellular cyclic nucleotide signals. The encoded protein mediates platelet aggregation and also plays important roles in cardiovascular function by regulating vascular smooth muscle contraction and relaxation. Inhibitors of the encoded protein may be effective in treating congestive heart failure. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Sep 2011]
PDE3A-AS1 (HGNC:40436): (PDE3A antisense RNA 1)

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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
PDE3ANM_000921.5 linkuse as main transcriptc.230T>A p.Leu77Gln missense_variant 1/16 ENST00000359062.4
PDE3ANM_001378407.1 linkuse as main transcriptc.230T>A p.Leu77Gln missense_variant 1/14
PDE3ANM_001378408.1 linkuse as main transcriptc.-799T>A 5_prime_UTR_variant 1/18

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PDE3AENST00000359062.4 linkuse as main transcriptc.230T>A p.Leu77Gln missense_variant 1/161 NM_000921.5 P1
PDE3A-AS1ENST00000535755.1 linkuse as main transcriptn.422+327A>T intron_variant, non_coding_transcript_variant 4

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000183
AC:
3
AN:
163732
Hom.:
0
AF XY:
0.0000228
AC XY:
2
AN XY:
87616
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000113
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000213
AC:
3
AN:
1408036
Hom.:
0
Cov.:
34
AF XY:
0.00000288
AC XY:
2
AN XY:
695140
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000803
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000284
Hom.:
0
Bravo
AF:
0.0000340

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJan 16, 2024The c.230T>A (p.L77Q) alteration is located in exon 1 (coding exon 1) of the PDE3A gene. This alteration results from a T to A substitution at nucleotide position 230, causing the leucine (L) at amino acid position 77 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
Uncertain
0.38
BayesDel_addAF
Benign
-0.12
T
BayesDel_noAF
Benign
-0.19
Cadd
Uncertain
25
Dann
Uncertain
0.99
DEOGEN2
Benign
0.21
T
Eigen
Benign
-0.16
Eigen_PC
Benign
-0.0029
FATHMM_MKL
Benign
0.48
N
LIST_S2
Benign
0.55
T
M_CAP
Pathogenic
0.41
D
MetaRNN
Uncertain
0.56
D
MetaSVM
Benign
-0.75
T
MutationAssessor
Benign
1.5
L
MutationTaster
Benign
0.73
D
PrimateAI
Uncertain
0.76
T
PROVEAN
Benign
-1.3
N
REVEL
Uncertain
0.30
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.0070
D
Polyphen
0.15
B
Vest4
0.61
MutPred
0.38
Gain of disorder (P = 0.0569);
MVP
0.61
MPC
1.6
ClinPred
0.56
D
GERP RS
3.6
Varity_R
0.29
gMVP
0.37

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.18
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: rs1008149263; hg19: chr12-20522448; API