9-95449181-A-G

Variant names:

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_000264.5(PTCH1):c.3692T>C(p.Val1231Ala) variant causes a missense change. The variant allele was found at a frequency of 0.00078 in 1,612,384 control chromosomes in the GnomAD database, including 4 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 0.0012 ( 1 hom., cov: 33)

Exomes 𝑓: 0.00074 ( 3 hom. )

Consequence

PTCH1
NM_000264.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:6

Conservation

PhyloP100: 4.04

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 Benign. Variant got -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.009612292).

BP6

Variant 9-95449181-A-G is Benign according to our data. Variant chr9-95449181-A-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 135895.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Benign=3, Uncertain_significance=1}.

BS1

Variant frequency is greater than expected in population eas. gnomad4_exome allele frequency = 0.000738 (1077/1460028) while in subpopulation EAS AF= 0.000706 (28/39660). AF 95% confidence interval is 0.000501. There are 3 homozygotes in gnomad4_exome. There are 511 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck.

BS2

High AC in GnomAd4 at 181 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PTCH1	NM_000264.5 link	c.3692T>C	p.Val1231Ala	missense_variant	Exon 22 of 24	ENST00000331920.11	NP_000255.2	Q13635-1
PTCH1	NM_001083603.3 link	c.3689T>C	p.Val1230Ala	missense_variant	Exon 22 of 24	ENST00000437951.6	NP_001077072.1	Q13635-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PTCH1	ENST00000331920.11 link	c.3692T>C	p.Val1231Ala	missense_variant	Exon 22 of 24	5	NM_000264.5	ENSP00000332353.6		Q13635-1
PTCH1	ENST00000437951.6 link	c.3689T>C	p.Val1230Ala	missense_variant	Exon 22 of 24	5	NM_001083603.3	ENSP00000389744.2		Q13635-2

Frequencies

GnomAD3 genomes

AF:

0.00119

AC:

181

AN:

152238

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000192

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.0137

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000412

Gnomad OTH

AF:

0.00191

GnomAD3 exomes

AF:

0.00165

AC:

404

AN:

245144

Hom.:

AF XY:

0.00161

AC XY:

214

AN XY:

132750

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000776

Gnomad SAS exome

AF:

0.000166

Gnomad FIN exome

AF:

0.0136

Gnomad NFE exome

AF:

0.000797

Gnomad OTH exome

AF:

0.00201

GnomAD4 exome

AF:

0.000738

AC:

1077

AN:

1460028

Hom.:

Cov.:

AF XY:

0.000704

AC XY:

511

AN XY:

726164

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000451

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000706

Gnomad4 SAS exome

AF:

0.000221

Gnomad4 FIN exome

AF:

0.0140

Gnomad4 NFE exome

AF:

0.000196

Gnomad4 OTH exome

AF:

0.00104

GnomAD4 genome

AF:

0.00119

AC:

181

AN:

152356

Hom.:

Cov.:

AF XY:

0.00157

AC XY:

117

AN XY:

74504

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000653

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.0137

Gnomad4 NFE

AF:

0.000412

Gnomad4 OTH

AF:

0.00189

Alfa

AF:

0.000282

Hom.:

Bravo

AF:

0.0000982

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.00170

AC:

206

Asia WGS

AF:

0.00115

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:6

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Uncertain:1Benign:1

Mar 04, 2025

Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Aug 23, 2017

GeneDx

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Gorlin syndrome

Benign:2

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Jan 20, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided

Benign:1

Jan 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

PTCH1: BS1 -

Hereditary cancer-predisposing syndrome

Benign:1

Jun 22, 2017

Ambry Genetics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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. -

Holoprosencephaly 7

Benign:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.17

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Uncertain

-0.060

CADD

Benign

DANN

Benign

0.94

DEOGEN2

Benign

0.28

T;.;.;.;.;.;.

Eigen

Benign

-0.069

Eigen_PC

Benign

0.045

FATHMM_MKL

Uncertain

0.83

LIST_S2

Uncertain

0.89

D;.;D;D;.;.;D

MetaRNN

Benign

0.0096

T;T;T;T;T;T;T

MetaSVM

Uncertain

-0.056

MutationAssessor

Benign

1.9

L;.;.;.;.;.;.

PrimateAI

Uncertain

0.64

PROVEAN

Benign

-0.12

N;N;N;N;N;N;N

REVEL

Uncertain

0.50

Sift

Benign

0.61

T;T;T;T;T;T;T

Sift4G

Benign

0.92

T;T;T;T;T;T;T

Polyphen

0.45

B;.;.;B;B;.;P

Vest4

0.56

MVP

0.66

MPC

0.092

ClinPred

0.041

GERP RS

4.8

Varity_R

0.11

gMVP

0.61

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