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17-15230712-G-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 0P and 3B. BP4_ModerateBP6

The NM_000304.4(PMP22):c.*205C>A variant causes a 3 prime UTR change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00153 in 598,700 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0015 ( 1 hom., cov: 33)
Exomes 𝑓: 0.0016 ( 4 hom. )

Consequence

PMP22
NM_000304.4 3_prime_UTR

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 8.94
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.32).
BP6
Variant 17-15230712-G-T is Benign according to our data. Variant chr17-15230712-G-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 321856.We mark this variant Likely_benign, oryginal submissions are: {Benign=1, Uncertain_significance=2}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PMP22NM_000304.4 linkuse as main transcriptc.*205C>A 3_prime_UTR_variant 5/5 ENST00000312280.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PMP22ENST00000312280.9 linkuse as main transcriptc.*205C>A 3_prime_UTR_variant 5/51 NM_000304.4 P1

Frequencies

GnomAD3 genomes
AF:
0.00148
AC:
226
AN:
152190
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000748
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00151
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000283
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00234
Gnomad OTH
AF:
0.00478
GnomAD3 exomes
AF:
0.00121
AC:
83
AN:
68428
Hom.:
0
AF XY:
0.00123
AC XY:
42
AN XY:
34146
show subpopulations
Gnomad AFR exome
AF:
0.000342
Gnomad AMR exome
AF:
0.00145
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000956
Gnomad NFE exome
AF:
0.00199
Gnomad OTH exome
AF:
0.000904
GnomAD4 exome
AF:
0.00155
AC:
692
AN:
446392
Hom.:
4
Cov.:
4
AF XY:
0.00159
AC XY:
377
AN XY:
236952
show subpopulations
Gnomad4 AFR exome
AF:
0.000242
Gnomad4 AMR exome
AF:
0.00169
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.000574
Gnomad4 NFE exome
AF:
0.00219
Gnomad4 OTH exome
AF:
0.00190
GnomAD4 genome
AF:
0.00148
AC:
226
AN:
152308
Hom.:
1
Cov.:
33
AF XY:
0.00140
AC XY:
104
AN XY:
74470
show subpopulations
Gnomad4 AFR
AF:
0.000746
Gnomad4 AMR
AF:
0.00150
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000283
Gnomad4 NFE
AF:
0.00234
Gnomad4 OTH
AF:
0.00473
Alfa
AF:
0.00205
Hom.:
0
Bravo
AF:
0.00155

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Hereditary liability to pressure palsies Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJun 14, 2016- -
Charcot-Marie-Tooth disease, type I Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJun 14, 2016- -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxJan 24, 2020- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.32
Cadd
Benign
18
Dann
Benign
0.94

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: rs189734097; hg19: chr17-15134029; API