NM_181882.3:c.994A>G

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_181882.3(PRX):​c.994A>G​(p.Thr332Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000632 in 1,612,698 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000069 ( 0 hom. )

Consequence

PRX
NM_181882.3 missense

Scores

18

Clinical Significance

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

Conservation

PhyloP100: -1.66

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 -4 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.029032737).

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.994A>Gp.Thr332Ala
missense
Exon 7 of 7NP_870998.2Q9BXM0-1
PRX
NM_001411127.1
c.1279A>Gp.Thr427Ala
missense
Exon 7 of 7NP_001398056.1A0A669KBF1
PRX
NM_020956.2
c.*1199A>G
3_prime_UTR
Exon 6 of 6NP_066007.1Q9BXM0-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PRX
ENST00000324001.8
TSL:1 MANE Select
c.994A>Gp.Thr332Ala
missense
Exon 7 of 7ENSP00000326018.6Q9BXM0-1
PRX
ENST00000291825.11
TSL:1
c.*1199A>G
3_prime_UTR
Exon 6 of 6ENSP00000291825.6Q9BXM0-2
PRX
ENST00000674005.2
c.1279A>Gp.Thr427Ala
missense
Exon 7 of 7ENSP00000501261.1A0A669KBF1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152128
Hom.:
0
Cov.:
32
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000369
AC:
9
AN:
244044
AF XY:
0.0000599
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:
0.0000732
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000692
AC:
101
AN:
1460570
Hom.:
0
Cov.:
35
AF XY:
0.0000716
AC XY:
52
AN XY:
726588
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33476
American (AMR)
AF:
0.00
AC:
0
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26128
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52282
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
0.0000782
AC:
87
AN:
1111882
Other (OTH)
AF:
0.000215
AC:
13
AN:
60358
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.499
Heterozygous variant carriers
0
8
16
23
31
39
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.00000657
AC:
1
AN:
152128
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74334
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41434
American (AMR)
AF:
0.00
AC:
0
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68000
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
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:
0.0000847
Hom.:
0
Bravo
AF:
0.0000378
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000119
AC:
1
ExAC
AF:
0.0000166
AC:
2
EpiCase
AF:
0.000273
EpiControl
AF:
0.00

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 provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.064
BayesDel_addAF
Benign
-0.54
T
BayesDel_noAF
Benign
-0.85
CADD
Benign
0.035
DANN
Benign
0.79
DEOGEN2
Benign
0.16
T
Eigen
Benign
-1.5
Eigen_PC
Benign
-1.5
FATHMM_MKL
Benign
0.011
N
LIST_S2
Benign
0.44
T
M_CAP
Benign
0.0078
T
MetaRNN
Benign
0.029
T
MetaSVM
Benign
-0.90
T
MutationAssessor
Benign
0.36
N
PhyloP100
-1.7
PrimateAI
Benign
0.47
T
PROVEAN
Benign
-0.25
N
REVEL
Benign
0.012
Sift
Benign
0.36
T
Sift4G
Benign
0.59
T
Polyphen
0.0010
B
Vest4
0.054
MVP
0.19
MPC
0.22
ClinPred
0.072
T
GERP RS
-6.6
Varity_R
0.022
gMVP
0.12
Mutation Taster
=99/1
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: rs143710873; hg19: chr19-40903265; API