9-95480466-C-T
Variant summary
Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2PP2PP3_Moderate
The NM_000264.5(PTCH1):c.869G>A(p.Gly290Asp) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G290S) has been classified as Uncertain significance.
Frequency
Genomes: not found (cov: 31)
Consequence
PTCH1
NM_000264.5 missense
NM_000264.5 missense
Scores
12
6
1
Clinical Significance
Conservation
PhyloP100: 3.83
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 5 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
PP2
?
Missense variant where missense usually causes diseases, PTCH1
PP3
?
MetaRNN computational evidence supports a deleterious effect, 0.865
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
PTCH1 | NM_000264.5 | c.869G>A | p.Gly290Asp | missense_variant | 6/24 | ENST00000331920.11 | |
PTCH1 | NM_001083603.3 | c.866G>A | p.Gly289Asp | missense_variant | 6/24 | ENST00000437951.6 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
PTCH1 | ENST00000331920.11 | c.869G>A | p.Gly290Asp | missense_variant | 6/24 | 5 | NM_000264.5 | A2 | |
PTCH1 | ENST00000437951.6 | c.866G>A | p.Gly289Asp | missense_variant | 6/24 | 5 | NM_001083603.3 |
Frequencies
GnomAD3 genomes ? Cov.: 31
GnomAD3 genomes
?
Cov.:
31
GnomAD4 exome Cov.: 32
GnomAD4 exome
Cov.:
32
GnomAD4 genome ? Cov.: 31
GnomAD4 genome
?
Cov.:
31
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 | Invitae | Jun 23, 2021 | 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. This sequence change replaces glycine with aspartic acid at codon 290 of the PTCH1 protein (p.Gly290Asp). The glycine residue is highly conserved and there is a moderate physicochemical difference between glycine and aspartic acid. This variant is not present in population databases (ExAC no frequency). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). This variant has been observed in several individuals with clinical features of Gorlin syndrome (Invitae). ClinVar contains an entry for this variant (Variation ID: 219509). - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
Cadd
Pathogenic
Dann
Uncertain
DEOGEN2
Pathogenic
D;.;.;.;.;.;.;.;.;.;.;.;.
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
D;.;D;D;.;.;D;D;D;.;.;.;D
M_CAP
Pathogenic
D
MetaRNN
Pathogenic
D;D;D;D;D;D;D;D;D;D;D;D;D
MetaSVM
Pathogenic
D
MutationAssessor
Uncertain
M;.;.;.;.;.;.;.;.;.;.;.;.
MutationTaster
Benign
D;D;D;D;D;D;D
PrimateAI
Pathogenic
D
PROVEAN
Uncertain
D;D;D;D;D;D;D;D;D;D;D;D;D
REVEL
Pathogenic
Sift
Uncertain
D;D;D;D;D;D;D;D;D;D;D;D;D
Sift4G
Uncertain
D;D;D;D;D;D;D;.;.;D;D;D;D
Polyphen
D;D;D;D;D;D;D;.;.;.;.;.;.
Vest4
MutPred
Loss of helix (P = 0.0196);.;.;.;.;.;.;.;.;.;.;.;.;
MVP
MPC
ClinPred
D
GERP RS
RBP_binding_hub_radar
RBP_regulation_power_radar
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