Genetic Variant PRDX1:p.Lys168Ile (chr1-45514518-T-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_181697.3(PRDX1):c.503A>T(p.Lys168Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,886 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. K168R) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

PRDX1
NM_181697.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.75

Publications

2 publications found

Variant links:

Genes affected

PRDX1 (HGNC:9352): (peroxiredoxin 1) This gene encodes a member of the peroxiredoxin family of antioxidant enzymes, which reduce hydrogen peroxide and alkyl hydroperoxides. The encoded protein may play an antioxidant protective role in cells, and may contribute to the antiviral activity of CD8(+) T-cells. This protein may have a proliferative effect and play a role in cancer development or progression. Four transcript variants encoding the same protein have been identified for this gene. [provided by RefSeq, Jan 2011]

PRDX1 Gene-Disease associations (from GenCC):

methylmalonic aciduria and homocystinuria type cblC
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)

PRDX1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PRDX1	NM_181697.3 link	c.503A>T	p.Lys168Ile	missense_variant	Exon 5 of 6	ENST00000319248.13	NP_859048.1	Q06830A0A384NPQ2
PRDX1	NM_001202431.2 link	c.503A>T	p.Lys168Ile	missense_variant	Exon 5 of 6		NP_001189360.1	Q06830A0A384NPQ2
PRDX1	NM_002574.4 link	c.503A>T	p.Lys168Ile	missense_variant	Exon 5 of 6		NP_002565.1	Q06830A0A384NPQ2
PRDX1	NM_181696.3 link	c.503A>T	p.Lys168Ile	missense_variant	Exon 5 of 6		NP_859047.1	Q06830A0A384NPQ2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PRDX1	ENST00000319248.13 link	c.503A>T	p.Lys168Ile	missense_variant	Exon 5 of 6	1	NM_181697.3	ENSP00000361152.5		Q06830

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000795

AC:

AN:

251446

AF XY:

0.00000736

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461886

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727244

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:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00000270

AC:

AN:

1112006

Other (OTH)

AF:

0.00

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.508

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.19

BayesDel_addAF

Uncertain

0.068

BayesDel_noAF

Benign

-0.12

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.58

D;D;T;T;T

Eigen

Uncertain

0.55

Eigen_PC

Uncertain

0.60

FATHMM_MKL

Uncertain

0.97

LIST_S2

Uncertain

0.93

D;.;D;.;D

M_CAP

Uncertain

0.093

MetaRNN

Uncertain

0.67

D;D;D;D;D

MetaSVM

Benign

-0.36

MutationAssessor

Pathogenic

3.3

M;M;.;.;.

PhyloP100

7.8

PrimateAI

Pathogenic

0.80

PROVEAN

Pathogenic

-6.0

D;D;D;D;D

REVEL

Uncertain

0.36

Sift

Uncertain

0.0010

D;D;D;D;D

Sift4G

Uncertain

0.019

D;D;D;.;.

Polyphen

0.14

B;B;.;.;.

Vest4

0.51

MutPred

0.52

Loss of methylation at K168 (P = 0.0174);Loss of methylation at K168 (P = 0.0174);.;Loss of methylation at K168 (P = 0.0174);Loss of methylation at K168 (P = 0.0174);

MVP

0.72

MPC

0.28

ClinPred

0.99

GERP RS

5.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.87

gMVP

0.67

Mutation Taster

=20/80

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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chr1-45514518-T-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over