1-66368007-C-T
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Variant summary
Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2
The NM_002600.4(PDE4B):c.1604C>T(p.Thr535Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000186 in 1,613,686 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000020 ( 0 hom. )
Consequence
PDE4B
NM_002600.4 missense
NM_002600.4 missense
Scores
9
9
1
Clinical Significance
Conservation
PhyloP100: 7.89
Genes affected
PDE4B (HGNC:8781): (phosphodiesterase 4B) This gene is a member of the type IV, cyclic AMP (cAMP)-specific, cyclic nucleotide phosphodiesterase (PDE) family. The encoded protein regulates the cellular concentrations of cyclic nucleotides and thereby play a role in signal transduction. Altered activity of this protein has been associated with schizophrenia and bipolar affective disorder. Alternative splicing and the use of alternative promoters results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2014]
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ACMG classification
Classification made for transcript
Verdict is Likely_benign. Variant got -4 ACMG points.
BS2
High AC in GnomAdExome4 at 29 AD gene.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152152Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.0000239 AC: 6AN: 250808Hom.: 0 AF XY: 0.0000221 AC XY: 3AN XY: 135522
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GnomAD4 exome AF: 0.0000198 AC: 29AN: 1461534Hom.: 0 Cov.: 31 AF XY: 0.0000179 AC XY: 13AN XY: 727066
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GnomAD4 genome AF: 0.00000657 AC: 1AN: 152152Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74324
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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 submitter | clinical testing | Ambry Genetics | Oct 03, 2022 | The c.1604C>T (p.T535M) alteration is located in exon 15 (coding exon 14) of the PDE4B gene. This alteration results from a C to T substitution at nucleotide position 1604, causing the threonine (T) at amino acid position 535 to be replaced by a methionine (M). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
CADD
Pathogenic
DANN
Pathogenic
DEOGEN2
Pathogenic
D;D;.;.;.
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Uncertain
D
LIST_S2
Uncertain
.;D;D;D;D
M_CAP
Uncertain
D
MetaRNN
Uncertain
D;D;D;D;D
MetaSVM
Uncertain
D
MutationAssessor
Uncertain
M;M;.;.;.
PrimateAI
Pathogenic
D
PROVEAN
Pathogenic
D;D;D;D;D
REVEL
Pathogenic
Sift
Uncertain
D;D;D;D;D
Sift4G
Uncertain
D;D;D;D;D
Polyphen
D;D;D;.;.
Vest4
MVP
MPC
ClinPred
D
GERP RS
Varity_R
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at