rs777270227

Variant names:

• chr19-12800920-C-A
• rs777270227
• NM_005809.6:c.253G>T

Variant summary

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

The NM_005809.6(PRDX2):​c.253G>T​(p.Ala85Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,457,342 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0000027 (0 hom.)
• Consequence: PRDX2 NM_005809.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.83
• Publications: 1 publications found

Genes affected

PRDX2 (HGNC:9353): (peroxiredoxin 2) This gene encodes a member of the peroxiredoxin family of antioxidant enzymes, which reduce hydrogen peroxide and alkyl hydroperoxides. The encoded protein plays an antioxidant protective role in cells, and it may contribute to the antiviral activity of CD8(+) T-cells. The crystal structure of this protein has been resolved to 2.7 angstroms. This protein prevents hemolytic anemia from oxidative stress by stabilizing hemoglobin, thus making this gene a therapeutic target for patients with hemolytic anemia. This protein may have a proliferative effect and play a role in cancer development or progression. Related pseudogenes have been identified on chromosomes 5, 6, 10 and 13. [provided by RefSeq, Mar 2013]

ENSG00000267062 (HGNC:):

HOOK2 (HGNC:19885): (hook microtubule tethering protein 2) Hook proteins are cytosolic coiled-coil proteins that contain conserved N-terminal domains, which attach to microtubules, and more divergent C-terminal domains, which mediate binding to organelles. The Drosophila Hook protein is a component of the endocytic compartment.[supplied by OMIM, Apr 2004]

ACMG classification

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

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005809.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PRDX2	NM_005809.6	MANE Select	c.253G>T	p.Ala85Ser	missense	Exon 3 of 6	NP_005800.3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PRDX2	ENST00000301522.3	TSL:1 MANE Select	c.253G>T	p.Ala85Ser	missense	Exon 3 of 6	ENSP00000301522.2	P32119-1
	PRDX2	ENST00000466174.5	TSL:1	n.312G>T		non_coding_transcript_exon	Exon 3 of 4
	PRDX2	ENST00000866180.1		c.253G>T	p.Ala85Ser	missense	Exon 3 of 6	ENSP00000536239.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD2 exomes AF: 0.00000412 AC: 1 AN: 242682 AF XY: 0.00000761

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: 0.00000915

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000274 AC: 4 AN: 1457342 Hom.: 0 Cov.: 31 AF XY: 0.00000414 AC XY: 3 AN XY: 724538

African (AFR) AF: 0.00 AC: 0 AN: 33330

American (AMR) AF: 0.00 AC: 0 AN: 44186

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25994

East Asian (EAS) AF: 0.00 AC: 0 AN: 39490

South Asian (SAS) AF: 0.00 AC: 0 AN: 85488

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52882

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5764

European-Non Finnish (NFE) AF: 0.00000360 AC: 4 AN: 1109986

Other (OTH) AF: 0.00 AC: 0 AN: 60222

GnomAD4 genome Cov.: 31

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ExAC AF: 0.00000824 AC: 1

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.26
BayesDel_addAF	Benign	-0.048	T
BayesDel_noAF	Benign	-0.31
CADD	Pathogenic	30
DANN	Uncertain	1.0
DEOGEN2	Benign	0.034	T
Eigen	Pathogenic	0.70
Eigen_PC	Uncertain	0.63
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Uncertain	0.86	D
M_CAP	Benign	0.036	D
MetaRNN	Uncertain	0.74	D
MetaSVM	Benign	-0.87	T
MutationAssessor	Uncertain	2.3	M
PhyloP100		7.8
PrimateAI	Uncertain	0.76	T
PROVEAN	Uncertain	-3.0	D
REVEL	Uncertain	0.32
Sift	Uncertain	0.0010	D
Sift4G	Uncertain	0.019	D
Polyphen		0.89	P
Vest4		0.69
MutPred		0.74		Loss of catalytic residue at A85 (P = 0.0636)
MVP		0.59
MPC		1.1
ClinPred		0.97	D
GERP RS		4.1
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.0
Varity_R		0.65
gMVP		0.43
Mutation Taster		=67/33	polymorphism

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

Other links and lift over

dbSNP: rs777270227; hg19: chr19-12911734;