17-15259072-T-C

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000304.4(PMP22):​c.178+22A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.536 in 1,544,988 control chromosomes in the GnomAD database, including 224,994 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.59 ( 27480 hom., cov: 32)
Exomes 𝑓: 0.53 ( 197514 hom. )

Consequence

PMP22
NM_000304.4 intron

Scores

2

Clinical Significance

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

Conservation

PhyloP100: -1.57
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.9).
BP6
Variant 17-15259072-T-C is Benign according to our data. Variant chr17-15259072-T-C is described in ClinVar as [Benign]. Clinvar id is 633487.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr17-15259072-T-C is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.748 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PMP22NM_000304.4 linkuse as main transcriptc.178+22A>G intron_variant ENST00000312280.9 NP_000295.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PMP22ENST00000312280.9 linkuse as main transcriptc.178+22A>G intron_variant 1 NM_000304.4 ENSP00000308937 P1

Frequencies

GnomAD3 genomes
AF:
0.591
AC:
89832
AN:
151976
Hom.:
27423
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.755
Gnomad AMI
AF:
0.701
Gnomad AMR
AF:
0.570
Gnomad ASJ
AF:
0.561
Gnomad EAS
AF:
0.593
Gnomad SAS
AF:
0.527
Gnomad FIN
AF:
0.423
Gnomad MID
AF:
0.636
Gnomad NFE
AF:
0.527
Gnomad OTH
AF:
0.592
GnomAD3 exomes
AF:
0.541
AC:
134747
AN:
249120
Hom.:
36933
AF XY:
0.535
AC XY:
72015
AN XY:
134542
show subpopulations
Gnomad AFR exome
AF:
0.762
Gnomad AMR exome
AF:
0.541
Gnomad ASJ exome
AF:
0.558
Gnomad EAS exome
AF:
0.594
Gnomad SAS exome
AF:
0.518
Gnomad FIN exome
AF:
0.430
Gnomad NFE exome
AF:
0.526
Gnomad OTH exome
AF:
0.550
GnomAD4 exome
AF:
0.530
AC:
738269
AN:
1392894
Hom.:
197514
Cov.:
22
AF XY:
0.530
AC XY:
369255
AN XY:
697010
show subpopulations
Gnomad4 AFR exome
AF:
0.764
Gnomad4 AMR exome
AF:
0.548
Gnomad4 ASJ exome
AF:
0.560
Gnomad4 EAS exome
AF:
0.592
Gnomad4 SAS exome
AF:
0.519
Gnomad4 FIN exome
AF:
0.427
Gnomad4 NFE exome
AF:
0.524
Gnomad4 OTH exome
AF:
0.540
GnomAD4 genome
AF:
0.591
AC:
89940
AN:
152094
Hom.:
27480
Cov.:
32
AF XY:
0.586
AC XY:
43580
AN XY:
74334
show subpopulations
Gnomad4 AFR
AF:
0.755
Gnomad4 AMR
AF:
0.569
Gnomad4 ASJ
AF:
0.561
Gnomad4 EAS
AF:
0.594
Gnomad4 SAS
AF:
0.528
Gnomad4 FIN
AF:
0.423
Gnomad4 NFE
AF:
0.527
Gnomad4 OTH
AF:
0.595
Alfa
AF:
0.550
Hom.:
18218
Bravo
AF:
0.609
Asia WGS
AF:
0.571
AC:
1983
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxJun 24, 2018- -
Charcot-Marie-Tooth disease, type I Benign:1
Benign, criteria provided, single submitterclinical testingClinical Molecular Genetics Laboratory, Johns Hopkins All Children's HospitalJan 30, 2019- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.90
CADD
Benign
0.20
DANN
Benign
0.53

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.

Other links and lift over

dbSNP: rs231020; hg19: chr17-15162389; API