rs1280830531

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2

The NM_000264.5(PTCH1):​c.3592C>T​(p.Pro1198Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000769 in 1,560,054 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000071 ( 0 hom. )

Consequence

PTCH1
NM_000264.5 missense

Scores

3
7
9

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 6.61
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.2837471).
BS2
High AC in GnomAdExome4 at 10 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PTCH1NM_000264.5 linkc.3592C>T p.Pro1198Ser missense_variant Exon 22 of 24 ENST00000331920.11 NP_000255.2 Q13635-1
PTCH1NM_001083603.3 linkc.3589C>T p.Pro1197Ser 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
PTCH1ENST00000331920.11 linkc.3592C>T p.Pro1198Ser missense_variant Exon 22 of 24 5 NM_000264.5 ENSP00000332353.6 Q13635-1
PTCH1ENST00000437951.6 linkc.3589C>T p.Pro1197Ser missense_variant Exon 22 of 24 5 NM_001083603.3 ENSP00000389744.2 Q13635-2

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152284
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000710
AC:
10
AN:
1407770
Hom.:
0
Cov.:
31
AF XY:
0.00000575
AC XY:
4
AN XY:
695378
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000922
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152284
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74402
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000294
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Basal cell carcinoma, susceptibility to, 1 Uncertain:1
Nov 11, 2023
Baylor Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Gorlin syndrome Uncertain:1
Nov 05, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces proline, which is neutral and non-polar, with serine, which is neutral and polar, at codon 1198 of the PTCH1 protein (p.Pro1198Ser). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with PTCH1-related conditions. ClinVar contains an entry for this variant (Variation ID: 524573). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt PTCH1 protein function with a negative predictive value of 95%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Hereditary cancer-predisposing syndrome Uncertain:1
Jun 03, 2024
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The p.P1198S variant (also known as c.3592C>T), located in coding exon 22 of the PTCH1 gene, results from a C to T substitution at nucleotide position 3592. The proline at codon 1198 is replaced by serine, an amino acid with similar properties. This amino acid position is well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.084
BayesDel_addAF
Uncertain
0.049
T
BayesDel_noAF
Benign
-0.17
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.85
D;.;.;.;.;.;.
Eigen
Benign
-0.086
Eigen_PC
Benign
0.11
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.93
D;.;D;D;.;.;D
M_CAP
Benign
0.050
D
MetaRNN
Benign
0.28
T;T;T;T;T;T;T
MetaSVM
Uncertain
-0.17
T
MutationAssessor
Benign
1.6
L;.;.;.;.;.;.
PrimateAI
Uncertain
0.55
T
PROVEAN
Pathogenic
-4.6
D;D;D;D;D;D;D
REVEL
Uncertain
0.34
Sift
Uncertain
0.0060
D;D;D;D;D;D;D
Sift4G
Benign
0.16
T;T;T;T;T;T;T
Polyphen
0.0080
B;.;.;B;B;.;B
Vest4
0.42
MutPred
0.21
Gain of relative solvent accessibility (P = 0.0166);.;.;.;.;.;.;
MVP
0.70
MPC
0.56
ClinPred
0.96
D
GERP RS
5.3
Varity_R
0.33
gMVP
0.74

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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.

Other links and lift over

dbSNP: rs1280830531; hg19: chr9-98211563; COSMIC: COSV59467872; API