chr21-42743784-C-A

Variant summary

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

The NM_002606.3(PDE9A):​c.577C>A​(p.Leu193Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000697 in 1,435,206 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign 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. L193P) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 7.0e-7 ( 0 hom. )

Consequence

PDE9A
NM_002606.3 missense

Scores

4
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.14
Variant links:
Genes affected
PDE9A (HGNC:8795): (phosphodiesterase 9A) The protein encoded by this gene catalyzes the hydrolysis of cAMP and cGMP to their corresponding monophosphates. The encoded protein plays a role in signal transduction by regulating the intracellular concentration of these cyclic nucleotides. Multiple transcript variants encoding several different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

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=0.22272846).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PDE9ANM_002606.3 linkuse as main transcriptc.577C>A p.Leu193Ile missense_variant 8/20 ENST00000291539.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PDE9AENST00000291539.11 linkuse as main transcriptc.577C>A p.Leu193Ile missense_variant 8/201 NM_002606.3 O76083-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000461
AC:
1
AN:
216732
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
116568
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:
0.0000376
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.97e-7
AC:
1
AN:
1435206
Hom.:
0
Cov.:
29
AF XY:
0.00
AC XY:
0
AN XY:
712284
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:
0.0000121
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

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 GeneticsAug 04, 2023The c.577C>A (p.L193I) alteration is located in exon 8 (coding exon 8) of the PDE9A gene. This alteration results from a C to A substitution at nucleotide position 577, causing the leucine (L) at amino acid position 193 to be replaced by an isoleucine (I). 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
0.20
BayesDel_addAF
Benign
-0.058
T
BayesDel_noAF
Benign
-0.32
CADD
Benign
22
DANN
Uncertain
0.98
DEOGEN2
Benign
0.076
.;T;.;.;.;.;.;.;.;.;.;.;.
Eigen
Benign
-0.25
Eigen_PC
Benign
-0.18
FATHMM_MKL
Benign
0.73
D
LIST_S2
Uncertain
0.97
D;D;D;D;D;D;D;D;D;D;D;D;D
M_CAP
Benign
0.031
D
MetaRNN
Benign
0.22
T;T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.71
T
MutationAssessor
Uncertain
2.0
.;M;.;.;.;.;.;.;.;.;.;.;.
MutationTaster
Benign
0.71
N;N;N;N;N;N;N;N;N;N;N;N;N;N
PrimateAI
Uncertain
0.72
T
PROVEAN
Benign
-1.1
N;N;N;N;N;N;N;N;N;N;N;N;N
REVEL
Benign
0.076
Sift
Benign
0.13
T;T;T;T;T;T;T;T;T;T;T;T;T
Sift4G
Benign
0.15
T;T;T;T;T;T;T;T;T;T;T;T;T
Polyphen
0.36
B;B;B;P;B;P;B;P;D;B;P;P;P
Vest4
0.39
MutPred
0.31
.;Gain of methylation at K194 (P = 0.0432);.;.;.;.;.;.;.;.;.;.;.;
MVP
0.70
MPC
0.82
ClinPred
0.68
D
GERP RS
3.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.059
gMVP
0.58

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: rs982358967; hg19: chr21-44163894; API