Genetic Variant ERP29:p.Gly134Glu (chr12-112022267-G-A) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_006817.4(ERP29):c.401G>A(p.Gly134Glu) variant causes a missense change. The variant allele was found at a frequency of 0.000000685 in 1,460,772 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

ERP29
NM_006817.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.81

Publications

0 publications found

Variant links:

Genes affected

ERP29 (HGNC:13799): (endoplasmic reticulum protein 29) This gene encodes a protein which localizes to the lumen of the endoplasmic reticulum (ER). It is a member of the protein disulfide isomerase (PDI) protein family but lacks an active thioredoxin motif, suggesting that this protein does not function as a disulfide isomerase. The canonical protein dimerizes and is thought to play a role in the processing of secretory proteins within the ER. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Dec 2016]

ERP29 links:

LOC124903021 (HGNC:):

LOC124903021 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.937

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ERP29	NM_006817.4 link	c.401G>A	p.Gly134Glu	missense_variant	Exon 3 of 3	ENST00000261735.4	NP_006808.1	P30040-1V9HW71
ERP29	NM_001034025.2 link	c.*100G>A		3_prime_UTR_variant	Exon 2 of 2		NP_001029197.1	P30040-2
LOC124903021	XR_007063464.1 link	n.-117C>T		upstream_gene_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
ERP29	ENST00000261735.4 link	c.401G>A	p.Gly134Glu	missense_variant	Exon 3 of 3	1	NM_006817.4	ENSP00000261735.3	P30040-1
ERP29	ENST00000546477.1 link	c.98G>A	p.Gly33Glu	missense_variant	Exon 3 of 3	3		ENSP00000449018.1	F8VY02
ERP29	ENST00000455836.1 link	c.*100G>A		3_prime_UTR_variant	Exon 2 of 2	2		ENSP00000412083.1	P30040-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1460772

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726658

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33450

American (AMR)

AF:

0.00

AC:

AN:

44578

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26040

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86112

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53370

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5756

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111442

Other (OTH)

AF:

0.00

AC:

AN:

60324

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 05, 2022

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.401G>A (p.G134E) alteration is located in exon 3 (coding exon 3) of the ERP29 gene. This alteration results from a G to A substitution at nucleotide position 401, causing the glycine (G) at amino acid position 134 to be replaced by a glutamic acid (E). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.59

BayesDel_addAF

Pathogenic

0.23

BayesDel_noAF

Uncertain

0.090

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.33

T;T

Eigen

Uncertain

0.63

Eigen_PC

Uncertain

0.63

FATHMM_MKL

Uncertain

0.93

LIST_S2

Benign

0.82

T;T

M_CAP

Benign

0.010

MetaRNN

Pathogenic

0.94

D;D

MetaSVM

Benign

-0.38

MutationAssessor

Benign

1.7

L;.

PhyloP100

6.8

PrimateAI

Uncertain

0.53

PROVEAN

Uncertain

-3.0

D;D

REVEL

Benign

0.25

Sift

Benign

0.11

T;D

Sift4G

Uncertain

0.030

D;D

Polyphen

0.98

D;.

Vest4

0.60

MutPred

0.83

Loss of catalytic residue at A135 (P = 0.0581);.;

MVP

0.60

MPC

0.82

ClinPred

0.97

GERP RS

5.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.43

gMVP

0.82

Mutation Taster

=72/28

polymorphism

(source)

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

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chr12-112022267-G-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over