rs146644725

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_StrongBP6BP7BS1BS2

The NM_002857.4(PEX19):​c.261C>T​(p.Phe87Phe) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00312 in 1,614,122 control chromosomes in the GnomAD database, including 8 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0020 ( 1 hom., cov: 32)
Exomes 𝑓: 0.0032 ( 7 hom. )

Consequence

PEX19
NM_002857.4 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: -0.441

Publications

5 publications found
Variant links:
Genes affected
PEX19 (HGNC:9713): (peroxisomal biogenesis factor 19) This gene is necessary for early peroxisomal biogenesis. It acts both as a cytosolic chaperone and as an import receptor for peroxisomal membrane proteins (PMPs). Peroxins (PEXs) are proteins that are essential for the assembly of functional peroxisomes. The peroxisome biogenesis disorders (PBDs) are a group of genetically heterogeneous autosomal recessive, lethal diseases characterized by multiple defects in peroxisome function. These disorders have at least 14 complementation groups, with more than one phenotype being observed for some complementation groups. Although the clinical features of PBD patients vary, cells from all PBD patients exhibit a defect in the import of one or more classes of peroxisomal matrix proteins into the organelle. Defects in this gene are a cause of Zellweger syndrome (ZWS), as well as peroxisome biogenesis disorder complementation group 14 (PBD-CG14), which is also known as PBD-CGJ. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2010]
PEX19 Gene-Disease associations (from GenCC):
  • peroxisome biogenesis disorder
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • peroxisome biogenesis disorder 12A (Zellweger)
    Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • Zellweger spectrum disorders
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.65).
BP6
Variant 1-160283029-G-A is Benign according to our data. Variant chr1-160283029-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 284050.
BP7
Synonymous conserved (PhyloP=-0.441 with no splicing effect.
BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.00204 (311/152260) while in subpopulation NFE AF = 0.00335 (228/68018). AF 95% confidence interval is 0.003. There are 1 homozygotes in GnomAd4. There are 153 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAdExome4 at 7 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PEX19NM_002857.4 linkc.261C>T p.Phe87Phe synonymous_variant Exon 3 of 8 ENST00000368072.10 NP_002848.1 P40855-1A0A0S2Z497
PEX19NM_001193644.1 linkc.261C>T p.Phe87Phe synonymous_variant Exon 3 of 8 NP_001180573.1 P40855
PEX19NR_036492.2 linkn.160C>T non_coding_transcript_exon_variant Exon 2 of 7
PEX19NR_036493.2 linkn.270C>T non_coding_transcript_exon_variant Exon 3 of 7

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PEX19ENST00000368072.10 linkc.261C>T p.Phe87Phe synonymous_variant Exon 3 of 8 1 NM_002857.4 ENSP00000357051.5 P40855-1

Frequencies

GnomAD3 genomes
AF:
0.00204
AC:
311
AN:
152140
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000845
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00177
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00228
Gnomad FIN
AF:
0.000471
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00335
Gnomad OTH
AF:
0.00191
GnomAD2 exomes
AF:
0.00185
AC:
464
AN:
251482
AF XY:
0.00197
show subpopulations
Gnomad AFR exome
AF:
0.000984
Gnomad AMR exome
AF:
0.000405
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad FIN exome
AF:
0.000139
Gnomad NFE exome
AF:
0.00327
Gnomad OTH exome
AF:
0.00114
GnomAD4 exome
AF:
0.00323
AC:
4728
AN:
1461862
Hom.:
7
Cov.:
32
AF XY:
0.00319
AC XY:
2322
AN XY:
727226
show subpopulations
African (AFR)
AF:
0.000597
AC:
20
AN:
33478
American (AMR)
AF:
0.000470
AC:
21
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.0000383
AC:
1
AN:
26136
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39700
South Asian (SAS)
AF:
0.00152
AC:
131
AN:
86246
European-Finnish (FIN)
AF:
0.000412
AC:
22
AN:
53420
Middle Eastern (MID)
AF:
0.000347
AC:
2
AN:
5762
European-Non Finnish (NFE)
AF:
0.00395
AC:
4389
AN:
1112002
Other (OTH)
AF:
0.00233
AC:
141
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.489
Heterozygous variant carriers
0
274
549
823
1098
1372
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
164
328
492
656
820
<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:
0.00204
AC:
311
AN:
152260
Hom.:
1
Cov.:
32
AF XY:
0.00205
AC XY:
153
AN XY:
74456
show subpopulations
African (AFR)
AF:
0.000843
AC:
35
AN:
41542
American (AMR)
AF:
0.00177
AC:
27
AN:
15294
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5178
South Asian (SAS)
AF:
0.00228
AC:
11
AN:
4828
European-Finnish (FIN)
AF:
0.000471
AC:
5
AN:
10608
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00335
AC:
228
AN:
68018
Other (OTH)
AF:
0.00189
AC:
4
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
20
40
60
80
100
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.00219
Hom.:
0
Bravo
AF:
0.00221
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.00354
EpiControl
AF:
0.00373

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:3
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Peroxisome biogenesis disorder 12A (Zellweger) Uncertain:1Benign:1
Jan 23, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

not specified Benign:1
Oct 23, 2015
Eurofins Ntd Llc (ga)
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

PEX19-related disorder Benign:1
Jan 21, 2020
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.65
CADD
Benign
7.4
DANN
Benign
0.74
PhyloP100
-0.44
Mutation Taster
=276/24
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: rs146644725; hg19: chr1-160252819; COSMIC: COSV63619249; COSMIC: COSV63619249; API