chr8-76983440-A-G

Variant summary

Our verdict is Likely pathogenic. Variant got 9 ACMG points: 9P and 0B. PM2PM5PP3_StrongPP5

The NM_000318.3(PEX2):​c.739T>C​(p.Cys247Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. C247Y) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 32)

Consequence

PEX2
NM_000318.3 missense

Scores

15
2
2

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 8.73
Variant links:
Genes affected
PEX2 (HGNC:9717): (peroxisomal biogenesis factor 2) This gene encodes an integral peroxisomal membrane protein required for peroxisome biogenesis. The protein is thought to be involved in peroxisomal matrix protein import. Mutations in this gene result in one form of Zellweger syndrome and infantile Refsum disease. Alternative splicing results in multiple transcript variants encoding the same protein. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 9 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr8-76983439-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 265330.Status of the report is criteria_provided_single_submitter, 1 stars.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.994
PP5
Variant 8-76983440-A-G is Pathogenic according to our data. Variant chr8-76983440-A-G is described in ClinVar as [Pathogenic]. Clinvar id is 139589.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PEX2NM_000318.3 linkuse as main transcriptc.739T>C p.Cys247Arg missense_variant 4/4 ENST00000357039.9
PEX2NM_001079867.2 linkuse as main transcriptc.739T>C p.Cys247Arg missense_variant 3/3
PEX2NM_001172086.2 linkuse as main transcriptc.739T>C p.Cys247Arg missense_variant 5/5
PEX2NM_001172087.2 linkuse as main transcriptc.739T>C p.Cys247Arg missense_variant 3/3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PEX2ENST00000357039.9 linkuse as main transcriptc.739T>C p.Cys247Arg missense_variant 4/41 NM_000318.3 P1
PEX2ENST00000522527.5 linkuse as main transcriptc.739T>C p.Cys247Arg missense_variant 3/31 P1
PEX2ENST00000520103.5 linkuse as main transcriptc.739T>C p.Cys247Arg missense_variant 3/32 P1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Cov.:
32
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Peroxisome biogenesis disorder 5A (Zellweger) Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMMar 01, 2004- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.93
BayesDel_addAF
Pathogenic
0.59
D
BayesDel_noAF
Pathogenic
0.61
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.92
D;D;D
Eigen
Pathogenic
0.80
Eigen_PC
Pathogenic
0.70
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.85
.;.;T
M_CAP
Pathogenic
0.74
D
MetaRNN
Pathogenic
0.99
D;D;D
MetaSVM
Pathogenic
0.97
D
MutationAssessor
Pathogenic
3.4
M;M;M
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Uncertain
0.77
T
PROVEAN
Pathogenic
-12
D;D;D
REVEL
Pathogenic
0.94
Sift
Pathogenic
0.0
D;D;D
Sift4G
Pathogenic
0.0
D;D;D
Polyphen
1.0
D;D;D
Vest4
0.95
MutPred
0.92
Gain of disorder (P = 0.0562);Gain of disorder (P = 0.0562);Gain of disorder (P = 0.0562);
MVP
0.97
ClinPred
1.0
D
GERP RS
5.2
Varity_R
0.99
gMVP
0.92

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs61752128; hg19: chr8-77895676; API