Genetic Variant NM_003630.3:c.-197T>G (chr6-143450846-T-G) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

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

The NM_003630.3(PEX3):c.-197T>G variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000635 in 756,008 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

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

Exomes 𝑓: 0.000066 ( 0 hom. )

Consequence

PEX3
NM_003630.3 5_prime_UTR

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.708

Variant links:

Genes affected

PEX3 (HGNC:8858): (peroxisomal biogenesis factor 3) The product of this gene is involved in peroxisome biosynthesis and integrity. It assembles membrane vesicles before the matrix proteins are translocated. 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. The peroxisomal biogenesis disorders are a heterogeneous group with at least 14 complementation groups and with more than 1 phenotype being observed in cases falling into particular 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 Zellweger syndrome (ZWS). [provided by RefSeq, Oct 2008]

PEX3 links:

ADAT2 (HGNC:21172): (adenosine deaminase tRNA specific 2) Predicted to enable tRNA-specific adenosine-34 deaminase activity. Predicted to be involved in tRNA wobble adenosine to inosine editing. Predicted to be located in nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

ADAT2 links:

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 (BayesDel_noAF=-0.79).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PEX3	NM_003630.3 link	c.-197T>G		5_prime_UTR_variant	Exon 1 of 12	ENST00000367591.5	NP_003621.1	P56589
ADAT2	NM_182503.3 link	c.-188A>C		upstream_gene_variant		ENST00000237283.9	NP_872309.2	Q7Z6V5-1

Ensembl

Gene	Transcript	HGVSc	Effect	Exon rank	TSL	MANE	Protein	UniProt
PEX3	ENST00000367591.5 link	c.-197T>G	5_prime_UTR_variant	Exon 1 of 12	1	NM_003630.3	ENSP00000356563.4	P56589
PEX3	ENST00000367592.5 link	c.-197T>G	5_prime_UTR_variant	Exon 1 of 7	5		ENSP00000356564.1	Q7Z6V3
ADAT2	ENST00000237283.9 link	c.-188A>C	upstream_gene_variant		1	NM_182503.3	ENSP00000237283.8	Q7Z6V5-1
ADAT2	ENST00000367593.1 link	n.-173A>C	upstream_gene_variant		3

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

152206

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.0000588

Gnomad OTH

AF:

0.000955

GnomAD4 exome

AF:

0.0000662

AC:

AN:

603802

Hom.:

Cov.:

AF XY:

0.0000589

AC XY:

AN XY:

322462

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

16494

American (AMR)

AF:

0.000186

AC:

AN:

32230

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

17054

East Asian (EAS)

AF:

0.00

AC:

AN:

34320

South Asian (SAS)

AF:

0.0000167

AC:

AN:

59836

European-Finnish (FIN)

AF:

0.00

AC:

AN:

36558

Middle Eastern (MID)

AF:

0.000824

AC:

AN:

2426

European-Non Finnish (NFE)

AF:

0.0000831

AC:

AN:

373164

Other (OTH)

AF:

0.00

AC:

AN:

31720

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.489

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000526

AC:

AN:

152206

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74368

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41444

American (AMR)

AF:

0.0000654

AC:

AN:

15282

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5188

South Asian (SAS)

AF:

0.00

AC:

AN:

4836

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

68038

Other (OTH)

AF:

0.000955

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000536

Hom.:

Bravo

AF:

0.0000604

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.79

CADD

Benign

(source)

DANN

Benign

0.66

PhyloP100

0.71

PromoterAI

0.025

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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NM_003630.3:c.-197T>G

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over