Genetic Variant NM_000264.5:c.3624C>T (chr9-95449249-G-A) – ACMG Classification: Benign (-14 pts)

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_StrongBP6BP7BS1BS2

The NM_000264.5(PTCH1):c.3624C>T(p.Ala1208Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000092 in 1,575,610 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. A1208A) has been classified as Benign.

Frequency

Genomes: 𝑓 0.00055 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000043 ( 0 hom. )

Consequence

PTCH1
NM_000264.5 synonymous

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:6

Conservation

PhyloP100: -2.73

Publications

0 publications found

Variant links:

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 Gene-Disease associations (from GenCC):

basal cell nevus syndrome 1
Inheritance: AD Classification: DEFINITIVE Submitted by: G2P
holoprosencephaly 7
Inheritance: AD Classification: DEFINITIVE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P
nevoid basal cell carcinoma syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, ClinGen, Orphanet, Labcorp Genetics (formerly Invitae)
holoprosencephaly
Inheritance: AD Classification: LIMITED Submitted by: Illumina

PTCH1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -14 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.88).

BP6

Variant 9-95449249-G-A is Benign according to our data. Variant chr9-95449249-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 237482.

BP7

Synonymous conserved (PhyloP=-2.73 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000551 (84/152400) while in subpopulation AFR AF = 0.002 (83/41600). AF 95% confidence interval is 0.00165. There are 0 homozygotes in GnomAd4. There are 46 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High AC in GnomAd4 at 84 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000264.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PTCH1	NM_000264.5	MANE Select	c.3624C>T	p.Ala1208Ala	synonymous	Exon 22 of 24	NP_000255.2	Q13635-1
PTCH1	NM_001083603.3	MANE Plus Clinical	c.3621C>T	p.Ala1207Ala	synonymous	Exon 22 of 24	NP_001077072.1	Q13635-2
PTCH1	NM_001354918.2		c.3468C>T	p.Ala1156Ala	synonymous	Exon 21 of 23	NP_001341847.1	A0A1W5YLI7

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PTCH1	ENST00000331920.11	TSL:5 MANE Select	c.3624C>T	p.Ala1208Ala	synonymous	Exon 22 of 24	ENSP00000332353.6	Q13635-1
PTCH1	ENST00000437951.6	TSL:5 MANE Plus Clinical	c.3621C>T	p.Ala1207Ala	synonymous	Exon 22 of 24	ENSP00000389744.2	Q13635-2
PTCH1	ENST00000429896.6	TSL:1	c.3171C>T	p.Ala1057Ala	synonymous	Exon 22 of 24	ENSP00000414823.2	Q13635-4

Frequencies

GnomAD3 genomes

AF:

0.000552

AC:

AN:

152282

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00200

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000142

AC:

AN:

183546

AF XY:

0.000123

show subpopulations

Gnomad AFR exome

AF:

0.00219

Gnomad AMR exome

AF:

0.0000378

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000205

GnomAD4 exome

AF:

0.0000429

AC:

AN:

1423210

Hom.:

Cov.:

AF XY:

0.0000270

AC XY:

AN XY:

704244

show subpopulations

African (AFR)

AF:

0.00164

AC:

AN:

32882

American (AMR)

AF:

0.000106

AC:

AN:

37746

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25370

East Asian (EAS)

AF:

0.00

AC:

AN:

37988

South Asian (SAS)

AF:

0.00

AC:

AN:

81620

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50516

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5724

European-Non Finnish (NFE)

AF:

9.15e-7

AC:

AN:

1092334

Other (OTH)

AF:

0.0000339

AC:

AN:

59030

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.491

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000551

AC:

AN:

152400

Hom.:

Cov.:

AF XY:

0.000617

AC XY:

AN XY:

74528

show subpopulations

African (AFR)

AF:

0.00200

AC:

AN:

41600

American (AMR)

AF:

0.00

AC:

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5188

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10632

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68046

Other (OTH)

AF:

0.000473

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.504

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000204

Hom.:

Bravo

AF:

0.000631

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Hereditary cancer-predisposing syndrome (2)

Gorlin syndrome (1)

Holoprosencephaly 7;C2751544:Basal cell carcinoma, susceptibility to, 1;CN376810:Basal cell nevus syndrome 1 (1)

not provided (1)

not specified (1)

PTCH1-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.88

CADD

Benign

0.070

(source)

DANN

Benign

0.54

PhyloP100

-2.7

Mutation Taster

=100/0

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over