1-10474984-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_004565.3(PEX14):c.18G>C(p.Gln6His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000199 in 1,609,784 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Q6E) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00020 ( 0 hom. )

Consequence

PEX14
NM_004565.3 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 2.51

Variant links:

Genes affected

PEX14 (HGNC:8856): (peroxisomal biogenesis factor 14) This gene encodes an essential component of the peroxisomal import machinery. The protein is integrated into peroxisome membranes with its C-terminus exposed to the cytosol, and interacts with the cytosolic receptor for proteins containing a PTS1 peroxisomal targeting signal. The protein also functions as a transcriptional corepressor and interacts with a histone deacetylase. A mutation in this gene results in one form of Zellweger syndrome. [provided by RefSeq, Jul 2008]

PEX14 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.24256217).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PEX14	NM_004565.3 linkuse as main transcript	c.18G>C	p.Gln6His	missense_variant	1/9	ENST00000356607.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PEX14	ENST00000356607.9 linkuse as main transcript	c.18G>C	p.Gln6His	missense_variant	1/9	1	NM_004565.3	P1	O75381-1
PEX14	ENST00000491661.2 linkuse as main transcript	c.3G>C	p.Gln1His	missense_variant	1/6	2
PEX14	ENST00000472851.1 linkuse as main transcript	n.293+2404G>C		intron_variant, non_coding_transcript_variant		3

Frequencies

GnomAD3 genomes

AF:

0.000177

AC:

AN:

152228

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

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:

0.000323

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000134

AC:

AN:

239506

Hom.:

AF XY:

0.000115

AC XY:

AN XY:

130334

show subpopulations

Gnomad AFR exome

AF:

0.000135

Gnomad AMR exome

AF:

0.0000888

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000251

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000201

AC:

293

AN:

1457556

Hom.:

Cov.:

AF XY:

0.000199

AC XY:

144

AN XY:

724632

show subpopulations

Gnomad4 AFR exome

AF:

0.0000598

Gnomad4 AMR exome

AF:

0.000158

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000117

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000244

Gnomad4 OTH exome

AF:

0.000200

GnomAD4 genome

AF:

0.000177

AC:

AN:

152228

Hom.:

Cov.:

AF XY:

0.000188

AC XY:

AN XY:

74378

show subpopulations

Gnomad4 AFR

AF:

0.0000482

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000323

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000237

Hom.:

Bravo

AF:

0.000144

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000350

AC:

ExAC

AF:

0.000157

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 01, 2023

The c.18G>C (p.Q6H) alteration is located in exon 1 (coding exon 1) of the PEX14 gene. This alteration results from a G to C substitution at nucleotide position 18, causing the glutamine (Q) at amino acid position 6 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Peroxisome biogenesis disorder, complementation group K

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Oct 04, 2022

This sequence change replaces glutamine, which is neutral and polar, with histidine, which is basic and polar, at codon 6 of the PEX14 protein (p.Gln6His). This variant is present in population databases (rs200395336, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with PEX14-related conditions. ClinVar contains an entry for this variant (Variation ID: 500767). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Not Available"; Align-GVGD: "Class C0"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Eurofins Ntd Llc (ga)

Mar 08, 2017

- -

Peroxisome biogenesis disorder 13A (Zellweger)

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Feb 23, 2022

- -

PEX14-related disorder

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Feb 14, 2024

The PEX14 c.18G>C variant is predicted to result in the amino acid substitution p.Gln6His. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.024% of alleles in individuals of European (Non-Finnish) descent in gnomAD. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.19

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.35

Cadd

Uncertain

Dann

Uncertain

0.99

DEOGEN2

Benign

0.40

T;T

Eigen

Uncertain

0.21

Eigen_PC

Uncertain

0.24

FATHMM_MKL

Benign

0.23

LIST_S2

Benign

0.70

T;D

M_CAP

Benign

0.011

MetaRNN

Benign

0.13

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.4

L;.

MutationTaster

Benign

1.0

D;N

PrimateAI

Uncertain

0.54

PROVEAN

Benign

-1.2

N;.

REVEL

Benign

0.089

Sift

Uncertain

0.012

D;.

Sift4G

Benign

0.092

T;D

Polyphen

0.84

P;.

Vest4

0.34

MutPred

0.080

Gain of loop (P = 0.0312);.;

MVP

0.51

MPC

0.40

ClinPred

0.13

GERP RS

3.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.25

gMVP

0.57

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over