Genetic Variant ERP29:p.Val88Ala (chr12-112019874-T-C) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_006817.4(ERP29):c.263T>C(p.Val88Ala) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,890 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: 0.0000014 ( 0 hom. )

Consequence

ERP29
NM_006817.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.50

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 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.816

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ERP29	NM_006817.4 link	c.263T>C	p.Val88Ala	missense_variant	Exon 2 of 3	ENST00000261735.4	NP_006808.1	P30040-1V9HW71
LOC124903021	XR_007063464.1 link	n.1617A>G		non_coding_transcript_exon_variant	Exon 2 of 2
ERP29	NM_001034025.2 link	c.145-2276T>C		intron_variant	Intron 1 of 1		NP_001029197.1	P30040-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
ERP29	ENST00000261735.4 link	c.263T>C	p.Val88Ala	missense_variant	Exon 2 of 3	1	NM_006817.4	ENSP00000261735.3	P30040-1
ERP29	ENST00000546477.1 link	c.-41T>C		5_prime_UTR_variant	Exon 2 of 3	3		ENSP00000449018.1	F8VY02
ERP29	ENST00000455836.1 link	c.145-2276T>C		intron_variant	Intron 1 of 1	2		ENSP00000412083.1	P30040-2
ERP29	ENST00000552052.1 link	c.*38T>C		downstream_gene_variant		3		ENSP00000447472.1	F8W1G0

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461890

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727246

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1112012

Other (OTH)

AF:

0.00

AC:

AN:

60394

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

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 21, 2022

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.263T>C (p.V88A) alteration is located in exon 2 (coding exon 2) of the ERP29 gene. This alteration results from a T to C substitution at nucleotide position 263, causing the valine (V) at amino acid position 88 to be replaced by an alanine (A). 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

0.76

BayesDel_addAF

Pathogenic

0.29

BayesDel_noAF

Pathogenic

0.17

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.50

Eigen

Pathogenic

0.71

Eigen_PC

Pathogenic

0.69

FATHMM_MKL

Uncertain

0.90

LIST_S2

Benign

0.79

M_CAP

Benign

0.025

MetaRNN

Pathogenic

0.82

MetaSVM

Uncertain

-0.13

MutationAssessor

Uncertain

2.4

PhyloP100

5.5

PrimateAI

Uncertain

0.58

PROVEAN

Uncertain

-3.3

REVEL

Uncertain

0.33

Sift

Uncertain

0.0020

Sift4G

Uncertain

0.0030

Polyphen

0.97

Vest4

0.76

MutPred

0.77

Loss of stability (P = 0.0367);

MVP

0.41

MPC

0.79

ClinPred

0.98

GERP RS

5.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.86

gMVP

0.71

Mutation Taster

=42/58

disease causing

(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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chr12-112019874-T-C

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