rs199522392

Positions:

• chr9-95506495-C-A
• chr9-95506495-C-G
• chr9-95506495-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP3

The NM_001083604.3(PTCH1):​c.-148G>T variant causes a 5 prime UTR premature start codon gain change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: PTCH1 NM_001083604.3 5_prime_UTR_premature_start_codon_gain
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.87

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 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.772

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PTCH1	NM_000264.5	c.306G>T	p.Leu102Phe	missense_variant	2/24	ENST00000331920.11	NP_000255.2
PTCH1	NM_001083603.3	c.303G>T	p.Leu101Phe	missense_variant	2/24	ENST00000437951.6	NP_001077072.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PTCH1	ENST00000331920.11	c.306G>T	p.Leu102Phe	missense_variant	2/24	5	NM_000264.5	ENSP00000332353.6
PTCH1	ENST00000437951.6	c.303G>T	p.Leu101Phe	missense_variant	2/24	5	NM_001083603.3	ENSP00000389744.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.53
BayesDel_addAF	Pathogenic	0.40	D
BayesDel_noAF	Pathogenic	0.34
CADD	Pathogenic	27
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.73	D;.;.;.;.
Eigen	Uncertain	0.58
Eigen_PC	Uncertain	0.52
FATHMM_MKL	Uncertain	0.84	D
LIST_S2	Uncertain	0.86	D;D;.;D;D
M_CAP	Pathogenic	0.33	D
MetaRNN	Pathogenic	0.77	D;D;D;D;D
MetaSVM	Uncertain	0.63	D
MutationAssessor	Uncertain	2.4	M;.;.;.;.
PrimateAI	Pathogenic	0.84	D
PROVEAN	Uncertain	-3.0	D;D;D;D;D
REVEL	Uncertain	0.63
Sift	Benign	0.060	T;D;D;T;D
Sift4G	Uncertain	0.0050	D;D;D;D;D
Polyphen		0.99	D;D;D;D;.
Vest4		0.89
MutPred		0.28		Loss of sheet (P = 0.0357);.;.;.;.;
MVP		0.82
MPC		1.1
ClinPred		0.99	D
GERP RS		4.5
Varity_R		0.79
gMVP		0.78

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr9-98268777;