NM_181882.3:c.4376C>T

Variant summary

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

The NM_181882.3(PRX):​c.4376C>T​(p.Ala1459Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000279 in 1,612,296 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 (★★). Synonymous variant affecting the same amino acid position (i.e. A1459A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

PRX
NM_181882.3 missense

Scores

2
2
14

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 2.13

Publications

5 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: Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics
  • 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=0.25203875).

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.4376C>Tp.Ala1459Val
missense
Exon 7 of 7NP_870998.2Q9BXM0-1
PRX
NM_001411127.1
c.4661C>Tp.Ala1554Val
missense
Exon 7 of 7NP_001398056.1A0A669KBF1
PRX
NM_020956.2
c.*4581C>T
3_prime_UTR
Exon 6 of 6NP_066007.1Q9BXM0-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PRX
ENST00000324001.8
TSL:1 MANE Select
c.4376C>Tp.Ala1459Val
missense
Exon 7 of 7ENSP00000326018.6Q9BXM0-1
PRX
ENST00000291825.11
TSL:1
c.*4581C>T
3_prime_UTR
Exon 6 of 6ENSP00000291825.6Q9BXM0-2
PRX
ENST00000674005.2
c.4661C>Tp.Ala1554Val
missense
Exon 7 of 7ENSP00000501261.1A0A669KBF1

Frequencies

GnomAD3 genomes
AF:
0.0000591
AC:
9
AN:
152176
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000401
AC:
10
AN:
249476
AF XY:
0.0000148
show subpopulations
Gnomad AFR exome
AF:
0.0000620
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000164
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000354
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000247
AC:
36
AN:
1460120
Hom.:
0
Cov.:
30
AF XY:
0.0000206
AC XY:
15
AN XY:
726444
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33474
American (AMR)
AF:
0.0000671
AC:
3
AN:
44710
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26124
East Asian (EAS)
AF:
0.0000756
AC:
3
AN:
39700
South Asian (SAS)
AF:
0.0000928
AC:
8
AN:
86252
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52016
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5690
European-Non Finnish (NFE)
AF:
0.0000135
AC:
15
AN:
1111804
Other (OTH)
AF:
0.0000994
AC:
6
AN:
60350
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.463
Heterozygous variant carriers
0
3
7
10
14
17
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:
0.0000591
AC:
9
AN:
152176
Hom.:
0
Cov.:
33
AF XY:
0.0000942
AC XY:
7
AN XY:
74348
show subpopulations
African (AFR)
AF:
0.0000965
AC:
4
AN:
41452
American (AMR)
AF:
0.00
AC:
0
AN:
15264
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5200
South Asian (SAS)
AF:
0.000414
AC:
2
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68012
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.481
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:
0.0000712
Hom.:
0
Bravo
AF:
0.0000378
ExAC
AF:
0.0000494
AC:
6
Asia WGS
AF:
0.000866
AC:
3
AN:
3478

ClinVar

ClinVar submissions as Germline
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
-
Charcot-Marie-Tooth disease type 4F (1)
-
1
-
Inborn genetic diseases (1)
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.32
T
BayesDel_noAF
Benign
-0.46
CADD
Uncertain
23
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.12
T
Eigen
Benign
0.075
Eigen_PC
Benign
-0.013
FATHMM_MKL
Benign
0.27
N
LIST_S2
Benign
0.58
T
M_CAP
Benign
0.027
D
MetaRNN
Benign
0.25
T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
0.97
L
PhyloP100
2.1
PrimateAI
Uncertain
0.59
T
PROVEAN
Benign
-0.70
N
REVEL
Benign
0.11
Sift
Pathogenic
0.0
D
Sift4G
Uncertain
0.021
D
Polyphen
1.0
D
Vest4
0.31
MutPred
0.44
Gain of sheet (P = 0.0266)
MVP
0.59
MPC
0.61
ClinPred
0.20
T
GERP RS
3.5
Varity_R
0.14
gMVP
0.55
Mutation Taster
=88/12
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: rs373051724; hg19: chr19-40899883; COSMIC: COSV52522073; COSMIC: COSV52522073; API