NM_181882.3:c.134G>A

Variant summary

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

The NM_181882.3(PRX):​c.134G>A​(p.Arg45Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000139 in 1,586,792 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R45G) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

PRX
NM_181882.3 missense

Scores

4
14

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 2.10

Publications

0 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=0.16578647).

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.134G>Ap.Arg45Gln
missense
Exon 5 of 7NP_870998.2Q9BXM0-1
PRX
NM_001411127.1
c.419G>Ap.Arg140Gln
missense
Exon 5 of 7NP_001398056.1A0A669KBF1
PRX
NM_020956.2
c.134G>Ap.Arg45Gln
missense
Exon 5 of 6NP_066007.1Q9BXM0-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PRX
ENST00000324001.8
TSL:1 MANE Select
c.134G>Ap.Arg45Gln
missense
Exon 5 of 7ENSP00000326018.6Q9BXM0-1
PRX
ENST00000291825.11
TSL:1
c.134G>Ap.Arg45Gln
missense
Exon 5 of 6ENSP00000291825.6Q9BXM0-2
PRX
ENST00000674005.2
c.419G>Ap.Arg140Gln
missense
Exon 5 of 7ENSP00000501261.1A0A669KBF1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152142
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000145
AC:
3
AN:
206520
AF XY:
0.0000178
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000111
Gnomad OTH exome
AF:
0.000191
GnomAD4 exome
AF:
0.0000139
AC:
20
AN:
1434650
Hom.:
0
Cov.:
32
AF XY:
0.0000126
AC XY:
9
AN XY:
711772
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32594
American (AMR)
AF:
0.00
AC:
0
AN:
41882
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25612
East Asian (EAS)
AF:
0.00
AC:
0
AN:
37738
South Asian (SAS)
AF:
0.0000727
AC:
6
AN:
82538
European-Finnish (FIN)
AF:
0.0000201
AC:
1
AN:
49642
Middle Eastern (MID)
AF:
0.000180
AC:
1
AN:
5552
European-Non Finnish (NFE)
AF:
0.0000109
AC:
12
AN:
1099832
Other (OTH)
AF:
0.00
AC:
0
AN:
59260
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.478
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152142
Hom.:
0
Cov.:
31
AF XY:
0.0000135
AC XY:
1
AN XY:
74316
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41408
American (AMR)
AF:
0.00
AC:
0
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5198
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2082
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.550
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.0000868
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.0000166
AC:
2

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Charcot-Marie-Tooth disease type 4 (1)
-
1
-
Inborn genetic diseases (1)
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Benign
-0.43
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Benign
0.095
T
Eigen
Benign
0.12
Eigen_PC
Benign
0.19
FATHMM_MKL
Benign
0.41
N
LIST_S2
Uncertain
0.87
D
M_CAP
Benign
0.066
D
MetaRNN
Benign
0.17
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.81
L
PhyloP100
2.1
PrimateAI
Uncertain
0.59
T
PROVEAN
Benign
-1.6
N
REVEL
Benign
0.062
Sift
Benign
0.38
T
Sift4G
Uncertain
0.024
D
Polyphen
0.52
P
Vest4
0.42
MutPred
0.40
Gain of disorder (P = 0.2379)
MVP
0.62
MPC
0.48
ClinPred
0.75
D
GERP RS
4.0
PromoterAI
-0.11
Neutral
Varity_R
0.24
gMVP
0.69
Mutation Taster
=64/36
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: rs751441856; hg19: chr19-40909663; API