4-653866-G-T

Variant names:

• chr4-653866-G-T
• rs200975847
• NM_000283.4:c.726G>T

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 2P and 6B. PM2 BP4_Strong BP6_Moderate

The NM_001350154.3(PDE6B):​c.-112G>T variant causes a 5 prime UTR premature start codon gain 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. Variant has been reported in ClinVar as Likely benign (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: PDE6B NM_001350154.3 5_prime_UTR_premature_start_codon_gain
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -2.31
• Publications: 0 publications found

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]

PDE6B-AS1 (HGNC:40438): (PDE6B antisense RNA 1)

ACMG classification

Our verdict: Likely_benign. The variant received -4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.67).
• BP6: Variant 4-653866-G-T is Benign according to our data. Variant chr4-653866-G-T is described in ClinVar as Likely_benign. ClinVar VariationId is 2860494.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001350154.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PDE6B	NM_000283.4	MANE Select	c.726G>T	p.Ser242Ser	synonymous	Exon 4 of 22	NP_000274.3	P35913-1
	PDE6B	NM_001350154.3		c.-112G>T		5_prime_UTR_premature_start_codon_gain	Exon 2 of 20	NP_001337083.1
	PDE6B	NM_001145292.2		c.-112G>T		5_prime_UTR_premature_start_codon_gain	Exon 2 of 20	NP_001138764.2	P35913-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PDE6B	ENST00000496514.6	TSL:1 MANE Select	c.726G>T	p.Ser242Ser	synonymous	Exon 4 of 22	ENSP00000420295.1	P35913-1
	PDE6B	ENST00000255622.10	TSL:1	c.726G>T	p.Ser242Ser	synonymous	Exon 4 of 22	ENSP00000255622.6	P35913-2
	PDE6B	ENST00000467152.1	TSL:1	n.124G>T		non_coding_transcript_exon	Exon 2 of 3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions

Significance: Likely benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.67
CADD	Benign	0.42
DANN	Benign	0.86
PhyloP100		-2.3

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: rs200975847; hg19: chr4-647655;