3-123110999-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_006810.4(PDIA5):c.536C>T(p.Ala179Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000205 in 1,612,978 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: 𝑓 0.000033 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000019 (0 hom.)
• Consequence: PDIA5 NM_006810.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.17

Genes affected

PDIA5 (HGNC:24811): (protein disulfide isomerase family A member 5) 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, three catalytically active thioredoxin (TRX) domains, a TRX-like domain, and a C-terminal ER-retention sequence. The N-terminal TRX-like domain is the primary binding site for the major ER chaperone calreticulin and possibly other proteins and substrates as well. Alternative splicing results in multiple protein- and non-protein-coding transcript variants. [provided by RefSeq, Dec 2016]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.918

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PDIA5	NM_006810.4	c.536C>T	p.Ala179Val	missense_variant	7/17	ENST00000316218.12
PDIA5	NR_028444.2	n.676C>T		non_coding_transcript_exon_variant	7/16
PDIA5	XR_007095629.1	n.676C>T		non_coding_transcript_exon_variant	7/14
PDIA5	XR_007095630.1	n.676C>T		non_coding_transcript_exon_variant	7/12

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PDIA5	ENST00000316218.12	c.536C>T	p.Ala179Val	missense_variant	7/17	1	NM_006810.4	P1
PDIA5	ENST00000489923.5	c.536C>T	p.Ala179Val	missense_variant, NMD_transcript_variant	7/16	1
PDIA5	ENST00000495004.1	n.555C>T		non_coding_transcript_exon_variant	6/6	3

Frequencies

GnomAD3 genomes AF: 0.0000329 AC: 5 AN: 152048 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000967

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: 0.0000676 AC: 17 AN: 251458 Hom.: 0 AF XY: 0.0000662 AC XY: 9 AN XY: 135896

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000924

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: 0.0000192 AC: 28 AN: 1460814 Hom.: 0 Cov.: 31 AF XY: 0.0000165 AC XY: 12 AN XY: 726760

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.000630

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000180

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome AF: 0.0000329 AC: 5 AN: 152164 Hom.: 0 Cov.: 32 AF XY: 0.0000403 AC XY: 3 AN XY: 74386

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.000969

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00

Bravo AF: 0.0000264

ExAC AF: 0.0000824 AC: 10

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 03, 2021

The c.536C>T (p.A179V) alteration is located in exon 7 (coding exon 7) of the PDIA5 gene. This alteration results from a C to T substitution at nucleotide position 536, causing the alanine (A) at amino acid position 179 to be replaced by a valine (V). 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	0.19
BayesDel_addAF	Benign	-0.067	T
BayesDel_noAF	Uncertain	0.070
Cadd	Pathogenic	28
Dann	Pathogenic	1.0
DEOGEN2	Benign	0.23	T
Eigen	Pathogenic	0.95
Eigen_PC	Pathogenic	0.87
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Uncertain	0.96	D
M_CAP	Benign	0.022	T
MetaRNN	Pathogenic	0.92	D
MetaSVM	Benign	-0.81	T
MutationAssessor	Pathogenic	3.8	H
MutationTaster	Benign	1.0	D
PrimateAI	Uncertain	0.58	T
PROVEAN	Uncertain	-3.5	D
REVEL	Uncertain	0.46
Sift	Benign	0.17	T
Sift4G	Benign	0.14	T
Polyphen		1.0	D
Vest4		0.92
MutPred		0.93		Gain of MoRF binding (P = 0.1472);
MVP		0.77
MPC		0.41
ClinPred		0.98	D
GERP RS		5.4
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.42
gMVP		0.87

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

Other links and lift over

dbSNP: rs560516430; hg19: chr3-122829846; COSMIC: COSV105145209; COSMIC: COSV105145209;