rs774819810

Positions:

chr9-95447221-ACGGGCCCCGCGAGGGCCCCAG-A

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM4BP6BS2

The NM_000264.5(PTCH1):c.4014_4034del(p.Trp1339_Arg1345del) variant causes a inframe deletion change. The variant allele was found at a frequency of 0.000424 in 1,612,766 control chromosomes in the GnomAD database, including 2 homozygotes. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00015 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00045 ( 2 hom. )

Consequence

PTCH1
NM_000264.5 inframe_deletion

Scores

Not classified

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:3

Conservation

PhyloP100: 5.65

Variant links:

Genes affected

PTCH1 (HGNC:9585): (patched 1) This gene encodes a member of the patched family of proteins and a component of the hedgehog signaling pathway. Hedgehog signaling is important in embryonic development and tumorigenesis. The encoded protein is the receptor for the secreted hedgehog ligands, which include sonic hedgehog, indian hedgehog and desert hedgehog. Following binding by one of the hedgehog ligands, the encoded protein is trafficked away from the primary cilium, relieving inhibition of the G-protein-coupled receptor smoothened, which results in activation of downstream signaling. Mutations of this gene have been associated with basal cell nevus syndrome and holoprosencephaly. [provided by RefSeq, Aug 2017]

PTCH1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM4

Nonframeshift variant in NON repetitive region in NM_000264.5.

BP6

Variant 9-95447221-ACGGGCCCCGCGAGGGCCCCAG-A is Benign according to our data. Variant chr9-95447221-ACGGGCCCCGCGAGGGCCCCAG-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 219471.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Benign=2, Uncertain_significance=1}.

BS2

High AC in GnomAd4 at 23 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PTCH1	NM_000264.5 linkuse as main transcript	c.4014_4034del	p.Trp1339_Arg1345del	inframe_deletion	23/24	ENST00000331920.11	NP_000255.2
PTCH1	NM_001083603.3 linkuse as main transcript	c.4011_4031del	p.Trp1338_Arg1344del	inframe_deletion	23/24	ENST00000437951.6	NP_001077072.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PTCH1	ENST00000331920.11 linkuse as main transcript	c.4014_4034del	p.Trp1339_Arg1345del	inframe_deletion	23/24	5	NM_000264.5	ENSP00000332353	A2	Q13635-1
PTCH1	ENST00000437951.6 linkuse as main transcript	c.4011_4031del	p.Trp1338_Arg1344del	inframe_deletion	23/24	5	NM_001083603.3	ENSP00000389744		Q13635-2

Frequencies

GnomAD3 genomes

AF:

0.000151

AC:

AN:

152186

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

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:

0.000309

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000150

AC:

AN:

246172

Hom.:

AF XY:

0.000141

AC XY:

AN XY:

134338

show subpopulations

Gnomad AFR exome

AF:

0.0000665

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000165

Gnomad SAS exome

AF:

0.000131

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000263

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000453

AC:

661

AN:

1460580

Hom.:

AF XY:

0.000421

AC XY:

306

AN XY:

726600

show subpopulations

Gnomad4 AFR exome

AF:

0.000149

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.0000927

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000570

Gnomad4 OTH exome

AF:

0.000199

GnomAD4 genome

AF:

0.000151

AC:

AN:

152186

Hom.:

Cov.:

AF XY:

0.0000942

AC XY:

AN XY:

74346

show subpopulations

Gnomad4 AFR

AF:

0.0000483

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:

0.000309

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000130

Hom.:

Bravo

AF:

0.000178

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Hereditary cancer-predisposing syndrome

Benign:2

Likely benign, criteria provided, single submitter	curation	Sema4, Sema4	Sep 23, 2021	- -
Benign, criteria provided, single submitter	clinical testing	Ambry Genetics	Mar 17, 2021	This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

PTCH1-related disorder

Uncertain:1

Uncertain significance, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Aug 12, 2024

The PTCH1 c.4014_4034del21 variant is predicted to result in an in-frame deletion (p.Trp1339_Arg1345del). This variant was reported in the heterozygous state a 5-year-old boy with overgrowth, macrocephaly, and autism; however inheritance is unknown as parental samples were not available for testing (Klein et al. 2019. PubMed ID: 31639285). This variant is reported in 0.025% of alleles in individuals of European (Non-Finnish) descent in gnomAD, which may be too common to be a primary cause of disease. This variant has conflicting classifications of pathogenicity in ClinVar ranging from benign to uncertain significance (https://www.ncbi.nlm.nih.gov/clinvar/variation/219471/). Although we suspect that this variant may be benign, at this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Feb 01, 2022

In-frame deletion of 7 amino acids in a non-repeat region; In silico analysis supports a deleterious effect on protein structure/function; Reported in a child with overgrowth and autism spectrum disorder (Klein et al., 2019); This variant is associated with the following publications: (PMID: 31639285) -

Gorlin syndrome

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 28, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

Splicing

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over