9-95468981-C-G
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Variant summary
Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2PP2BP4_Moderate
The NM_000264.5(PTCH1):c.2020G>C(p.Val674Leu) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: not found (cov: 32)
Consequence
PTCH1
NM_000264.5 missense
NM_000264.5 missense
Scores
1
3
15
Clinical Significance
Conservation
PhyloP100: 4.50
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]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 1 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), PTCH1. . Gene score misZ 1.6774 (greater than the threshold 3.09). Trascript score misZ 3.1343 (greater than threshold 3.09). GenCC has associacion of gene with holoprosencephaly 7, nevoid basal cell carcinoma syndrome, holoprosencephaly.
BP4
Computational evidence support a benign effect (MetaRNN=0.19896507).
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
PTCH1 | NM_000264.5 | c.2020G>C | p.Val674Leu | missense_variant | 14/24 | ENST00000331920.11 | NP_000255.2 | |
PTCH1 | NM_001083603.3 | c.2017G>C | p.Val673Leu | missense_variant | 14/24 | ENST00000437951.6 | NP_001077072.1 | |
LOC100507346 | NR_038982.1 | n.919C>G | non_coding_transcript_exon_variant | 4/4 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
PTCH1 | ENST00000331920.11 | c.2020G>C | p.Val674Leu | missense_variant | 14/24 | 5 | NM_000264.5 | ENSP00000332353 | A2 | |
PTCH1 | ENST00000437951.6 | c.2017G>C | p.Val673Leu | missense_variant | 14/24 | 5 | NM_001083603.3 | ENSP00000389744 |
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD3 genomes
Cov.:
32
GnomAD4 exome Cov.: 33
GnomAD4 exome
Cov.:
33
GnomAD4 genome Cov.: 32
GnomAD4 genome
Cov.:
32
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Gorlin syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Jul 07, 2023 | This sequence change replaces valine, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 674 of the PTCH1 protein (p.Val674Leu). 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. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt PTCH1 protein function. This variant has not been reported in the literature in individuals affected with PTCH1-related conditions. This variant is not present in population databases (gnomAD no frequency). - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
DEOGEN2
Benign
T;.;.;.;.;.;.;.
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
D;.;D;D;.;.;D;D
M_CAP
Benign
D
MetaRNN
Benign
T;T;T;T;T;T;T;T
MetaSVM
Benign
T
MutationAssessor
Benign
N;.;.;.;.;.;.;.
MutationTaster
Benign
N;N;N;N;N;N;N
PrimateAI
Uncertain
T
PROVEAN
Benign
N;N;N;N;N;N;N;N
REVEL
Uncertain
Sift
Benign
T;T;T;T;T;T;T;T
Sift4G
Benign
T;T;T;T;T;T;T;.
Polyphen
B;B;B;B;B;B;B;.
Vest4
MutPred
Loss of catalytic residue at V674 (P = 0.0596);.;.;.;.;.;.;.;
MVP
MPC
ClinPred
T
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at
Publications
No publications associated with this variant yet.