4-634754-T-G

Position:

Variant summary

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

The NM_000283.4(PDE6B):ā€‹c.546T>Gā€‹(p.Asn182Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,613,402 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 32)
Exomes š‘“: 0.0000027 ( 0 hom. )

Consequence

PDE6B
NM_000283.4 missense

Scores

2
5
12

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.75
Variant links:
Genes affected
PDE6B (HGNC:8786): (phosphodiesterase 6B) Photon absorption triggers a signaling cascade in rod photoreceptors that activates cGMP phosphodiesterase (PDE), resulting in the rapid hydrolysis of cGMP, closure of cGMP-gated cation channels, and hyperpolarization of the cell. PDE is a peripheral membrane heterotrimeric enzyme made up of alpha, beta, and gamma subunits. This gene encodes the beta subunit. Mutations in this gene result in retinitis pigmentosa and autosomal dominant congenital stationary night blindness. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Feb 2009]

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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 Protein UniProt
PDE6BNM_000283.4 linkuse as main transcriptc.546T>G p.Asn182Lys missense_variant 2/22 ENST00000496514.6 NP_000274.3 P35913-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PDE6BENST00000496514.6 linkuse as main transcriptc.546T>G p.Asn182Lys missense_variant 2/221 NM_000283.4 ENSP00000420295.1 P35913-1
PDE6BENST00000255622.10 linkuse as main transcriptc.546T>G p.Asn182Lys missense_variant 2/221 ENSP00000255622.6 P35913-2

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152178
Hom.:
0
Cov.:
32
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:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251474
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135912
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:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1461224
Hom.:
0
Cov.:
31
AF XY:
0.00000275
AC XY:
2
AN XY:
726994
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:
0.0000464
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152178
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74342
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:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.00000824
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.74
BayesDel_addAF
Benign
-0.17
T
BayesDel_noAF
Benign
-0.39
CADD
Benign
0.23
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.74
.;D
Eigen
Benign
-0.46
Eigen_PC
Benign
-0.62
FATHMM_MKL
Benign
0.14
N
LIST_S2
Benign
0.84
T;T
M_CAP
Benign
0.070
D
MetaRNN
Uncertain
0.68
D;D
MetaSVM
Benign
-0.51
T
MutationAssessor
Pathogenic
3.1
M;M
PrimateAI
Benign
0.47
T
PROVEAN
Uncertain
-3.1
D;D
REVEL
Benign
0.28
Sift
Uncertain
0.024
D;D
Sift4G
Benign
0.26
T;T
Polyphen
0.53
P;P
Vest4
0.76
MutPred
0.71
Gain of ubiquitination at N182 (P = 0.0539);Gain of ubiquitination at N182 (P = 0.0539);
MVP
0.72
MPC
0.55
ClinPred
0.91
D
GERP RS
-3.8
Varity_R
0.64
gMVP
0.88

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: rs368094720; hg19: chr4-628543; API