rs775235892
Variant summary
Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2
The NM_000264.5(PTCH1):c.2102G>T(p.Ser701Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000821 in 1,461,884 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S701N) has been classified as Uncertain significance.
Frequency
Consequence
NM_000264.5 missense
Scores
Clinical Significance
Conservation
Publications
- basal cell nevus syndrome 1Inheritance: AD Classification: DEFINITIVE Submitted by: G2P
- holoprosencephaly 7Inheritance: AD Classification: DEFINITIVE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P
- nevoid basal cell carcinoma syndromeInheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, ClinGen, Labcorp Genetics (formerly Invitae), Orphanet
- holoprosencephalyInheritance: AD Classification: LIMITED Submitted by: Illumina
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ACMG classification
Our verdict: Benign. The variant received -7 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| PTCH1 | ENST00000331920.11 | c.2102G>T | p.Ser701Ile | missense_variant | Exon 14 of 24 | 5 | NM_000264.5 | ENSP00000332353.6 | ||
| PTCH1 | ENST00000437951.6 | c.2099G>T | p.Ser700Ile | missense_variant | Exon 14 of 24 | 5 | NM_001083603.3 | ENSP00000389744.2 |
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD2 exomes AF: 0.00000398 AC: 1AN: 251436 AF XY: 0.00000736 show subpopulations
GnomAD4 exome AF: 0.00000821 AC: 12AN: 1461884Hom.: 0 Cov.: 33 AF XY: 0.0000124 AC XY: 9AN XY: 727240 show subpopulations
Age Distribution
GnomAD4 genome Cov.: 32
ClinVar
Submissions by phenotype
not provided Uncertain:1
Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: 11331587) -
Hereditary cancer-predisposing syndrome Uncertain:1
The p.S701I variant (also known as c.2102G>T), located in coding exon 14 of the PTCH1 gene, results from a G to T substitution at nucleotide position 2102. The serine at codon 701 is replaced by isoleucine, an amino acid with dissimilar properties. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
Gorlin syndrome Benign:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at