chr9-95443397-TACAA-T

Position:

• chr9-95443397-TACAA-T

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP6_Moderate BS1 BS2

The NM_000264.5(PTCH1):​c.*2992_*2995del variant causes a 3 prime UTR change. The variant allele was found at a frequency of 0.00445 in 152,340 control chromosomes in the GnomAD database, including 5 homozygotes. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: 𝑓 0.0045 (5 hom., cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: PTCH1 NM_000264.5 3_prime_UTR
• Clinical Significance: Likely benign criteria provided, single submitter B:2
• Conservation: PhyloP100: 4.76

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]

ACMG classification

Verdict is Benign. Variant got -10 ACMG points.

• BP6: Variant 9-95443397-TACAA-T is Benign according to our data. Variant chr9-95443397-TACAA-T is described in ClinVar as [Likely_benign]. Clinvar id is 367624.Status of the report is criteria_provided_single_submitter, 1 stars.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00445 (678/152340) while in subpopulation AFR AF= 0.0149 (621/41580). AF 95% confidence interval is 0.014. There are 5 homozygotes in gnomad4. There are 339 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High AC in GnomAd4 at 678 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PTCH1	NM_000264.5	c.*2992_*2995del		3_prime_UTR_variant	24/24	ENST00000331920.11
PTCH1	NM_001083603.3	c.*2992_*2995del		3_prime_UTR_variant	24/24	ENST00000437951.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PTCH1	ENST00000331920.11	c.*2992_*2995del		3_prime_UTR_variant	24/24	5	NM_000264.5	A2
PTCH1	ENST00000437951.6	c.*2992_*2995del		3_prime_UTR_variant	24/24	5	NM_001083603.3

Frequencies

GnomAD3 genomes AF: 0.00444 AC: 676 AN: 152222 Hom.: 5 Cov.: 32

Gnomad AFR AF: 0.0150

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00268

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00316

Gnomad NFE AF: 0.0000588

Gnomad OTH AF: 0.00430

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 406 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 240

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome AF: 0.00445 AC: 678 AN: 152340 Hom.: 5 Cov.: 32 AF XY: 0.00455 AC XY: 339 AN XY: 74498

Gnomad4 AFR AF: 0.0149

Gnomad4 AMR AF: 0.00268

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000588

Gnomad4 OTH AF: 0.00520

Alfa AF: 0.00356 Hom.: 0

Bravo AF: 0.00558

Asia WGS AF: 0.000578 AC: 2 AN: 3474

ClinVar

Significance: Likely benign

Submissions summary: Benign:2

Revision: criteria provided, single submitter

Submissions by phenotype

Holoprosencephaly sequence Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jun 14, 2016

- -

Gorlin syndrome Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jun 14, 2016

- -

Computational scores

Source: dbNSFP v4.3

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

LitVar

Other links and lift over

dbSNP: rs139748418; hg19: chr9-98205679;