16-284584-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_006849.4(PDIA2):​c.397G>A​(p.Glu133Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000683 in 1,611,626 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 34)
Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

PDIA2
NM_006849.4 missense

Scores

7
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.46
Variant links:
Genes affected
PDIA2 (HGNC:14180): (protein disulfide isomerase family A member 2) This gene encodes a member of the disulfide isomerase (PDI) family of endoplasmic reticulum (ER) proteins that catalyze protein folding and thiol-disulfide interchange reactions. The encoded protein has an N-terminal ER-signal sequence, two catalytically active thioredoxin (TRX) domains, two TRX-like domains and a C-terminal ER-retention sequence. The protein plays a role in the folding of nascent proteins in the endoplasmic reticulum by forming disulfide bonds through its thiol isomerase, oxidase, and reductase activity. The encoded protein also possesses estradiol-binding activity and can modulate intracellular estradiol levels. [provided by RefSeq, Sep 2017]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PDIA2NM_006849.4 linkuse as main transcriptc.397G>A p.Glu133Lys missense_variant 2/11 ENST00000219406.11 NP_006840.2 Q13087-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PDIA2ENST00000219406.11 linkuse as main transcriptc.397G>A p.Glu133Lys missense_variant 2/111 NM_006849.4 ENSP00000219406.7 Q13087-1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152152
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000410
AC:
1
AN:
243674
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
132890
show subpopulations
Gnomad AFR exome
AF:
0.0000672
Gnomad AMR exome
AF:
0.00
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000617
AC:
9
AN:
1459474
Hom.:
0
Cov.:
67
AF XY:
0.00000689
AC XY:
5
AN XY:
726056
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000349
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000450
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152152
Hom.:
0
Cov.:
34
AF XY:
0.0000135
AC XY:
1
AN XY:
74342
show subpopulations
Gnomad4 AFR
AF:
0.0000483
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756
ExAC
AF:
0.00000828
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJun 02, 2024The c.397G>A (p.E133K) alteration is located in exon 2 (coding exon 2) of the PDIA2 gene. This alteration results from a G to A substitution at nucleotide position 397, causing the glutamic acid (E) at amino acid position 133 to be replaced by a lysine (K). 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
Benign
0.12
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.42
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.026
T;.
Eigen
Benign
-0.13
Eigen_PC
Benign
-0.16
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.91
D;D
M_CAP
Benign
0.029
D
MetaRNN
Uncertain
0.52
D;D
MetaSVM
Benign
-0.95
T
MutationAssessor
Benign
0.63
N;N
PrimateAI
Uncertain
0.68
T
PROVEAN
Uncertain
-2.9
D;D
REVEL
Benign
0.21
Sift
Uncertain
0.0030
D;D
Sift4G
Benign
0.096
T;T
Polyphen
0.85
P;.
Vest4
0.57
MutPred
0.60
Gain of ubiquitination at E133 (P = 0.0198);Gain of ubiquitination at E133 (P = 0.0198);
MVP
0.70
ClinPred
0.46
T
GERP RS
3.5
Varity_R
0.44
gMVP
0.63

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs778870993; hg19: chr16-334584; COSMIC: COSV51986205; COSMIC: COSV51986205; API