rs144305922

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_181882.3(PRX):​c.1546C>T​(p.Arg516Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000837 in 1,613,544 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R516Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000083 ( 1 hom. )

Consequence

PRX
NM_181882.3 missense

Scores

6
12

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:7B:1

Conservation

PhyloP100: 0.416

Publications

1 publications found
Variant links:
Genes affected
PRX (HGNC:13797): (periaxin) This gene encodes a protein involved in peripheral nerve myelin upkeep. The encoded protein contains 2 PDZ domains which were named after PSD95 (post synaptic density protein), DlgA (Drosophila disc large tumor suppressor), and ZO1 (a mammalian tight junction protein). Two alternatively spliced transcript variants have been described for this gene which encode different protein isoforms and which are targeted differently in the Schwann cell. Mutations in this gene cause Charcot-Marie-Tooth neuoropathy, type 4F and Dejerine-Sottas neuropathy. [provided by RefSeq, Jul 2008]
PRX Gene-Disease associations (from GenCC):
  • Charcot-Marie-Tooth disease type 4
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • Charcot-Marie-Tooth disease type 4F
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Orphanet
  • Charcot-Marie-Tooth disease type 3
    Inheritance: AD, AR Classification: MODERATE, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.15558222).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_181882.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PRX
NM_181882.3
MANE Select
c.1546C>Tp.Arg516Trp
missense
Exon 7 of 7NP_870998.2Q9BXM0-1
PRX
NM_001411127.1
c.1831C>Tp.Arg611Trp
missense
Exon 7 of 7NP_001398056.1A0A669KBF1
PRX
NM_020956.2
c.*1751C>T
3_prime_UTR
Exon 6 of 6NP_066007.1Q9BXM0-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PRX
ENST00000324001.8
TSL:1 MANE Select
c.1546C>Tp.Arg516Trp
missense
Exon 7 of 7ENSP00000326018.6Q9BXM0-1
PRX
ENST00000291825.11
TSL:1
c.*1751C>T
3_prime_UTR
Exon 6 of 6ENSP00000291825.6Q9BXM0-2
PRX
ENST00000674005.2
c.1831C>Tp.Arg611Trp
missense
Exon 7 of 7ENSP00000501261.1A0A669KBF1

Frequencies

GnomAD3 genomes
AF:
0.0000921
AC:
14
AN:
151962
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000656
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00955
Gnomad NFE
AF:
0.000118
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000100
AC:
25
AN:
249778
AF XY:
0.000133
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000318
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000797
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000828
AC:
121
AN:
1461464
Hom.:
1
Cov.:
36
AF XY:
0.0000990
AC XY:
72
AN XY:
726982
show subpopulations
African (AFR)
AF:
0.0000598
AC:
2
AN:
33468
American (AMR)
AF:
0.000269
AC:
12
AN:
44658
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39656
South Asian (SAS)
AF:
0.000337
AC:
29
AN:
86078
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53408
Middle Eastern (MID)
AF:
0.00173
AC:
10
AN:
5764
European-Non Finnish (NFE)
AF:
0.0000531
AC:
59
AN:
1111922
Other (OTH)
AF:
0.000133
AC:
8
AN:
60374
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.443
Heterozygous variant carriers
0
9
17
26
34
43
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
2
4
6
8
10
<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:
0.0000921
AC:
14
AN:
152080
Hom.:
0
Cov.:
33
AF XY:
0.0000538
AC XY:
4
AN XY:
74362
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41490
American (AMR)
AF:
0.0000655
AC:
1
AN:
15270
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.000194
AC:
1
AN:
5160
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10588
Middle Eastern (MID)
AF:
0.0103
AC:
3
AN:
292
European-Non Finnish (NFE)
AF:
0.000118
AC:
8
AN:
67986
Other (OTH)
AF:
0.00
AC:
0
AN:
2104
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.414
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000141
Hom.:
0
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000157
AC:
19
EpiCase
AF:
0.000327
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
Charcot-Marie-Tooth disease type 4F (2)
-
2
-
Dejerine-Sottas disease;C3540453:Charcot-Marie-Tooth disease type 4F (2)
-
1
-
Charcot-Marie-Tooth disease type 4 (1)
-
1
-
Dejerine-Sottas disease (1)
-
-
1
Inborn genetic diseases (1)
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.19
BayesDel_addAF
Benign
-0.42
T
BayesDel_noAF
Benign
-0.53
CADD
Benign
20
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.52
D
Eigen
Benign
-0.40
Eigen_PC
Benign
-0.57
FATHMM_MKL
Benign
0.089
N
LIST_S2
Uncertain
0.87
D
M_CAP
Benign
0.0089
T
MetaRNN
Benign
0.16
T
MetaSVM
Benign
-0.96
T
MutationAssessor
Benign
2.0
M
PhyloP100
0.42
PrimateAI
Benign
0.20
T
PROVEAN
Uncertain
-2.5
N
REVEL
Benign
0.064
Sift
Uncertain
0.015
D
Sift4G
Uncertain
0.0050
D
Polyphen
0.99
D
Vest4
0.29
MVP
0.43
MPC
0.73
ClinPred
0.17
T
GERP RS
2.5
Varity_R
0.083
gMVP
0.11
Mutation Taster
=94/6
polymorphism

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

Other links and lift over

dbSNP: rs144305922; hg19: chr19-40902713; COSMIC: COSV52533362; API