chr21-42743785-T-C

Variant summary

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

The NM_002606.3(PDE9A):ā€‹c.578T>Cā€‹(p.Leu193Pro) variant causes a missense change. The variant allele was found at a frequency of 0.000022 in 1,587,984 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā˜…). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L193I) has been classified as Uncertain significance.

Frequency

Genomes: š‘“ 0.000026 ( 0 hom., cov: 33)
Exomes š‘“: 0.000022 ( 0 hom. )

Consequence

PDE9A
NM_002606.3 missense

Scores

3
13
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.11
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 2 ACMG points.

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

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PDE9ANM_002606.3 linkuse as main transcriptc.578T>C p.Leu193Pro missense_variant 8/20 ENST00000291539.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PDE9AENST00000291539.11 linkuse as main transcriptc.578T>C p.Leu193Pro missense_variant 8/201 NM_002606.3 O76083-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152170
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000460
AC:
1
AN:
217164
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
116768
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:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000104
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000216
AC:
31
AN:
1435814
Hom.:
0
Cov.:
29
AF XY:
0.0000239
AC XY:
17
AN XY:
712570
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000283
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152170
Hom.:
0
Cov.:
33
AF XY:
0.0000404
AC XY:
3
AN XY:
74320
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000588
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000654
Hom.:
0
Bravo
AF:
0.0000302
ExAC
AF:
0.0000165
AC:
2

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 10, 2022The c.578T>C (p.L193P) alteration is located in exon 8 (coding exon 8) of the PDE9A gene. This alteration results from a T to C substitution at nucleotide position 578, causing the leucine (L) at amino acid position 193 to be replaced by a proline (P). 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
Pathogenic
0.89
BayesDel_addAF
Pathogenic
0.18
D
BayesDel_noAF
Uncertain
0.020
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.49
.;T;.;.;.;.;.;.;.;.;.;.;.
Eigen
Uncertain
0.31
Eigen_PC
Uncertain
0.35
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.96
D;D;D;D;D;D;D;D;D;D;D;D;D
M_CAP
Benign
0.073
D
MetaRNN
Uncertain
0.52
D;D;D;D;D;D;D;D;D;D;D;D;D
MetaSVM
Benign
-0.69
T
MutationAssessor
Uncertain
2.0
.;M;.;.;.;.;.;.;.;.;.;.;.
MutationTaster
Benign
1.0
D;D;D;D;D;D;D;D;D;D;D;D;D;D
PrimateAI
Pathogenic
0.79
T
PROVEAN
Uncertain
-4.1
D;D;D;D;D;D;D;D;D;D;D;D;D
REVEL
Uncertain
0.45
Sift
Uncertain
0.019
D;D;T;D;D;D;D;D;D;T;D;D;D
Sift4G
Uncertain
0.027
D;D;D;T;D;D;T;T;D;T;T;T;D
Polyphen
0.16
B;D;B;D;B;D;D;D;D;D;D;D;D
Vest4
0.69
MVP
0.85
MPC
1.2
ClinPred
0.97
D
GERP RS
5.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.65
gMVP
0.90

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: rs200110573; hg19: chr21-44163895; API