Variant chr17-15230717-A-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -18 ACMG points: 0P and 18B. BP4_ModerateBP6_Very_StrongBS1BS2

The NM_000304.4(PMP22):c.*200T>G variant causes a 3 prime UTR change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000889 in 604,210 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.00064 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00097 ( 4 hom. )

Consequence

PMP22
NM_000304.4 3_prime_UTR

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 8.33

Variant links:

Genes affected

PMP22 (HGNC:9118): (peripheral myelin protein 22) This gene encodes an integral membrane protein that is a major component of myelin in the peripheral nervous system. Studies suggest two alternately used promoters drive tissue-specific expression. Various mutations of this gene are causes of Charcot-Marie-Tooth disease Type IA, Dejerine-Sottas syndrome, and hereditary neuropathy with liability to pressure palsies. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2013]

PMP22 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -18 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.34).

BP6

Variant 17-15230717-A-C is Benign according to our data. Variant chr17-15230717-A-C is described in ClinVar as [Benign]. Clinvar id is 888884.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.000637 (97/152356) while in subpopulation AMR AF= 0.00163 (25/15302). AF 95% confidence interval is 0.00114. There are 0 homozygotes in gnomad4. There are 45 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High Homozygotes in GnomAdExome4 at 4 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PMP22	NM_000304.4 link	c.*200T>G		3_prime_UTR_variant	5/5	ENST00000312280.9	NP_000295.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PMP22	ENST00000312280 link	c.*200T>G		3_prime_UTR_variant	5/5	1	NM_000304.4	ENSP00000308937.3		Q01453

Frequencies

GnomAD3 genomes

AF:

0.000637

AC:

AN:

152238

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000265

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00164

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000621

Gnomad FIN

AF:

0.000282

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000794

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000838

AC:

AN:

69236

Hom.:

AF XY:

0.00109

AC XY:

AN XY:

34708

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000513

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00291

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000997

Gnomad OTH exome

AF:

0.000450

GnomAD4 exome

AF:

0.000974

AC:

440

AN:

451854

Hom.:

Cov.:

AF XY:

0.00109

AC XY:

262

AN XY:

239772

show subpopulations

Gnomad4 AFR exome

AF:

0.0000803

Gnomad4 AMR exome

AF:

0.000765

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00282

Gnomad4 FIN exome

AF:

0.000490

Gnomad4 NFE exome

AF:

0.000923

Gnomad4 OTH exome

AF:

0.00104

GnomAD4 genome

AF:

0.000637

AC:

AN:

152356

Hom.:

Cov.:

AF XY:

0.000604

AC XY:

AN XY:

74508

show subpopulations

Gnomad4 AFR

AF:

0.000264

Gnomad4 AMR

AF:

0.00163

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000621

Gnomad4 FIN

AF:

0.000282

Gnomad4 NFE

AF:

0.000794

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000731

Hom.:

Bravo

AF:

0.000812

ClinVar

Significance: Benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Jan 11, 2020

- -

Hereditary liability to pressure palsies

Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 12, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Charcot-Marie-Tooth disease, type I

Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 12, 2018

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.34

CADD

Benign

DANN

Benign

0.92

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.0

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over