rs557355077

Variant summary

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

The NM_181882.3(PRX):​c.839C>T​(p.Pro280Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000144 in 1,548,932 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 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. P280P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00015 ( 0 hom. )

Consequence

PRX
NM_181882.3 missense

Scores

1
17

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: -0.234

Publications

2 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), Orphanet, 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 -4 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.052047938).

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

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PRX
NM_181882.3
MANE Select
c.839C>Tp.Pro280Leu
missense
Exon 7 of 7NP_870998.2
PRX
NM_001411127.1
c.1124C>Tp.Pro375Leu
missense
Exon 7 of 7NP_001398056.1
PRX
NM_020956.2
c.*1044C>T
3_prime_UTR
Exon 6 of 6NP_066007.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PRX
ENST00000324001.8
TSL:1 MANE Select
c.839C>Tp.Pro280Leu
missense
Exon 7 of 7ENSP00000326018.6
PRX
ENST00000291825.11
TSL:1
c.*1044C>T
3_prime_UTR
Exon 6 of 6ENSP00000291825.6
PRX
ENST00000674005.2
c.1124C>Tp.Pro375Leu
missense
Exon 7 of 7ENSP00000501261.1

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
151960
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
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:
0.000189
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000736
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000825
AC:
12
AN:
145378
AF XY:
0.0000629
show subpopulations
Gnomad AFR exome
AF:
0.000147
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000901
Gnomad FIN exome
AF:
0.0000878
Gnomad NFE exome
AF:
0.000126
Gnomad OTH exome
AF:
0.000238
GnomAD4 exome
AF:
0.000154
AC:
215
AN:
1396854
Hom.:
0
Cov.:
35
AF XY:
0.000158
AC XY:
109
AN XY:
689654
show subpopulations
African (AFR)
AF:
0.0000945
AC:
3
AN:
31746
American (AMR)
AF:
0.00
AC:
0
AN:
36132
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25112
East Asian (EAS)
AF:
0.0000278
AC:
1
AN:
35986
South Asian (SAS)
AF:
0.0000249
AC:
2
AN:
80220
European-Finnish (FIN)
AF:
0.000253
AC:
11
AN:
43412
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5362
European-Non Finnish (NFE)
AF:
0.000179
AC:
194
AN:
1080842
Other (OTH)
AF:
0.0000689
AC:
4
AN:
58042
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.482
Heterozygous variant carriers
0
16
33
49
66
82
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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:
0.0000526
AC:
8
AN:
152078
Hom.:
0
Cov.:
32
AF XY:
0.0000538
AC XY:
4
AN XY:
74334
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41528
American (AMR)
AF:
0.00
AC:
0
AN:
15298
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5128
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4804
European-Finnish (FIN)
AF:
0.000189
AC:
2
AN:
10610
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
290
European-Non Finnish (NFE)
AF:
0.0000736
AC:
5
AN:
67936
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.556
Heterozygous variant carriers
0
1
1
2
2
3
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:
0.000113
Hom.:
0
Bravo
AF:
0.0000378
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ExAC
AF:
0.0000539
AC:
6

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
not provided (2)
-
1
-
Charcot-Marie-Tooth disease (1)
-
1
-
Charcot-Marie-Tooth disease type 4 (1)
-
1
-
Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.071
BayesDel_addAF
Benign
-0.52
T
BayesDel_noAF
Benign
-0.73
CADD
Benign
3.1
DANN
Benign
0.90
DEOGEN2
Benign
0.087
T
Eigen
Benign
-1.0
Eigen_PC
Benign
-0.96
FATHMM_MKL
Benign
0.053
N
LIST_S2
Benign
0.73
T
M_CAP
Benign
0.038
D
MetaRNN
Benign
0.052
T
MetaSVM
Benign
-0.90
T
MutationAssessor
Benign
0.0
N
PhyloP100
-0.23
PrimateAI
Uncertain
0.53
T
PROVEAN
Benign
-0.55
N
REVEL
Benign
0.017
Sift
Benign
0.089
T
Sift4G
Benign
0.14
T
Polyphen
0.021
B
Vest4
0.17
MVP
0.44
MPC
0.74
ClinPred
0.040
T
GERP RS
2.4
Varity_R
0.021
gMVP
0.13
Mutation Taster
=100/0
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: rs557355077; hg19: chr19-40903420; API