rs199998309

Variant names:

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2

The NM_003738.5(PTCH2):c.2782G>A(p.Glu928Lys) variant causes a missense change. The variant allele was found at a frequency of 0.000213 in 1,607,508 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00017 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00022 ( 1 hom. )

Consequence

PTCH2
NM_003738.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: 3.80

Variant links:

Genes affected

PTCH2 (HGNC:9586): (patched 2) This gene encodes a transmembrane receptor of the patched gene family. The encoded protein may function as a tumor suppressor in the hedgehog signaling pathway. Alterations in this gene have been associated with nevoid basal cell carcinoma syndrome, basal cell carcinoma, medulloblastoma, and susceptibility to congenital macrostomia. Alternatively spliced transcript variants have been described.[provided by RefSeq, Oct 2009]

PTCH2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.07000625).

BP6

Variant 1-44826682-C-T is Benign according to our data. Variant chr1-44826682-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 415450.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=1}.

BS2

High AC in GnomAd4 at 26 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PTCH2	NM_003738.5 link	c.2782G>A	p.Glu928Lys	missense_variant	Exon 18 of 22	ENST00000372192.4	NP_003729.3	Q9Y6C5-1
PTCH2	NM_001166292.2 link	c.2782G>A	p.Glu928Lys	missense_variant	Exon 18 of 23		NP_001159764.1	Q9Y6C5-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PTCH2	ENST00000372192.4 link	c.2782G>A	p.Glu928Lys	missense_variant	Exon 18 of 22	1	NM_003738.5	ENSP00000361266.3		Q9Y6C5-1
PTCH2	ENST00000447098.6 link	c.2782G>A	p.Glu928Lys	missense_variant	Exon 18 of 23	1		ENSP00000389703.2		Q9Y6C5-2

Frequencies

GnomAD3 genomes

AF:

0.000171

AC:

AN:

152164

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000338

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

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:

0.000132

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000424

AC:

102

AN:

240764

Hom.:

AF XY:

0.000365

AC XY:

AN XY:

131552

show subpopulations

Gnomad AFR exome

AF:

0.000471

Gnomad AMR exome

AF:

0.0000889

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000667

Gnomad FIN exome

AF:

0.000479

Gnomad NFE exome

AF:

0.000722

Gnomad OTH exome

AF:

0.000342

GnomAD4 exome

AF:

0.000217

AC:

316

AN:

1455226

Hom.:

Cov.:

AF XY:

0.000202

AC XY:

146

AN XY:

723262

show subpopulations

Gnomad4 AFR exome

AF:

0.000330

Gnomad4 AMR exome

AF:

0.0000681

Gnomad4 ASJ exome

AF:

0.0000388

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000467

Gnomad4 FIN exome

AF:

0.000286

Gnomad4 NFE exome

AF:

0.000227

Gnomad4 OTH exome

AF:

0.000466

GnomAD4 genome

AF:

0.000171

AC:

AN:

152282

Hom.:

Cov.:

AF XY:

0.000175

AC XY:

AN XY:

74446

show subpopulations

Gnomad4 AFR

AF:

0.000337

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000132

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000330

Hom.:

Bravo

AF:

0.000140

ExAC

AF:

0.000652

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 12, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.2782G>A (p.E928K) alteration is located in exon 18 (coding exon 18) of the PTCH2 gene. This alteration results from a G to A substitution at nucleotide position 2782, causing the glutamic acid (E) at amino acid position 928 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Basal cell carcinoma, susceptibility to, 1

Benign:1

Jul 07, 2023

KCCC/NGS Laboratory, Kuwait Cancer Control Center

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Gorlin syndrome

Benign:1

Aug 31, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

PTCH2-related disorder

Benign:1

Feb 12, 2020

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.092

BayesDel_addAF

Benign

-0.17

BayesDel_noAF

Benign

-0.11

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.23

.;T

Eigen

Benign

-0.21

Eigen_PC

Benign

-0.10

FATHMM_MKL

Uncertain

0.93

LIST_S2

Uncertain

0.88

D;D

M_CAP

Benign

0.065

MetaRNN

Benign

0.070

T;T

MetaSVM

Uncertain

-0.077

MutationAssessor

Benign

-0.35

N;N

PrimateAI

Uncertain

0.75

PROVEAN

Benign

-0.86

N;N

REVEL

Uncertain

0.54

Sift

Benign

0.49

T;T

Sift4G

Benign

0.41

T;T

Polyphen

0.55

P;D

Vest4

0.39

MVP

0.89

MPC

0.20

ClinPred

0.015

GERP RS

3.0

Varity_R

0.11

gMVP

0.78

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.

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