rs3179757

Variant names:

• chr19-18219036-C-T
• rs3179757
• NM_001098818.4:c.873G>A

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_001098818.4(PDE4C):​c.873G>A​(p.Glu291Glu) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: PDE4C NM_001098818.4 splice_region, synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.672
• Publications: 0 publications found

Genes affected

PDE4C (HGNC:8782): (phosphodiesterase 4C) The protein encoded by this gene belongs to the cyclic nucleotide phosphodiesterase (PDE) family, and PDE4 subfamily. This PDE hydrolyzes the second messenger, cAMP, which is a regulator and mediator of a number of cellular responses to extracellular signals. Thus, by regulating the cellular concentration of cAMP, this protein plays a key role in many important physiological processes. Alternatively spliced transcript variants encoding different isoforms have been described for this gene.[provided by RefSeq, Jul 2011]

PDE4C (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.5).
• BP7: Synonymous conserved (PhyloP=-0.672 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PDE4C	NM_001098818.4	c.873G>A	p.Glu291Glu	splice_region_variant, synonymous_variant	Exon 9 of 15	ENST00000262805.17	NP_001092288.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PDE4C	ENST00000262805.17	c.873G>A	p.Glu291Glu	splice_region_variant, synonymous_variant	Exon 9 of 15	1	NM_001098818.4	ENSP00000262805.10
PDE4C	ENST00000355502.7	c.969G>A	p.Glu323Glu	splice_region_variant, synonymous_variant	Exon 13 of 19	2		ENSP00000347689.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.50
CADD	Benign	8.7
DANN	Benign	0.52
PhyloP100		-0.67

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.040		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs3179757; hg19: chr19-18329846;