Genetic Variant OAS2:c.*2056G>C (chr12-113011311-G-C) – ACMG Classification: Benign (-12 pts)

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_StrongBA1

The NM_002535.3(OAS2):c.*2056G>C variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.767 in 152,170 control chromosomes in the GnomAD database, including 46,084 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.77 ( 46083 hom., cov: 32)

Exomes 𝑓: 0.75 ( 1 hom. )

Consequence

OAS2
NM_002535.3 3_prime_UTR

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.0530

Publications

7 publications found

Variant links:

Genes affected

OAS2 (HGNC:8087): (2'-5'-oligoadenylate synthetase 2) This gene encodes a member of the 2-5A synthetase family, essential proteins involved in the innate immune response to viral infection. The encoded protein is induced by interferons and uses adenosine triphosphate in 2'-specific nucleotidyl transfer reactions to synthesize 2',5'-oligoadenylates (2-5As). These molecules activate latent RNase L, which results in viral RNA degradation and the inhibition of viral replication. The three known members of this gene family are located in a cluster on chromosome 12. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jul 2008]

OAS2 links:

ENSG00000257452 (HGNC:):

ENSG00000257452 links:

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ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -12 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.93).

BA1

GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.972 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
OAS2	NM_002535.3 link	c.*2056G>C		3_prime_UTR_variant	Exon 10 of 10	ENST00000392583.7	NP_002526.2	P29728-2
OAS2	NM_016817.3 link	c.*827G>C		3_prime_UTR_variant	Exon 11 of 11		NP_058197.2	P29728-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
OAS2	ENST00000392583.7 link	c.*2056G>C		3_prime_UTR_variant	Exon 10 of 10	1	NM_002535.3	ENSP00000376362.3		P29728-2

Frequencies

GnomAD3 genomes

AF:

0.766

AC:

116526

AN:

152048

Hom.:

46017

Cov.:

show subpopulations

Gnomad AFR

AF:

0.938

Gnomad AMI

AF:

0.592

Gnomad AMR

AF:

0.764

Gnomad ASJ

AF:

0.542

Gnomad EAS

AF:

0.995

Gnomad SAS

AF:

0.817

Gnomad FIN

AF:

0.774

Gnomad MID

AF:

0.579

Gnomad NFE

AF:

0.656

Gnomad OTH

AF:

0.719

GnomAD4 exome

AF:

0.750

AC:

AN:

Hom.:

Cov.:

AF XY:

0.750

AC XY:

AN XY:

show subpopulations

African (AFR)

AC:

AN:

American (AMR)

AC:

AN:

Ashkenazi Jewish (ASJ)

AC:

AN:

East Asian (EAS)

AC:

AN:

South Asian (SAS)

AC:

AN:

European-Finnish (FIN)

AC:

AN:

Middle Eastern (MID)

AC:

AN:

European-Non Finnish (NFE)

AF:

0.750

AC:

AN:

Other (OTH)

AC:

AN:

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.675

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.767

AC:

116656

AN:

152166

Hom.:

46083

Cov.:

AF XY:

0.774

AC XY:

57532

AN XY:

74376

show subpopulations

African (AFR)

AF:

0.938

AC:

38964

AN:

41544

American (AMR)

AF:

0.765

AC:

11682

AN:

15280

Ashkenazi Jewish (ASJ)

AF:

0.542

AC:

1878

AN:

3468

East Asian (EAS)

AF:

0.995

AC:

5152

AN:

5180

South Asian (SAS)

AF:

0.816

AC:

3942

AN:

4828

European-Finnish (FIN)

AF:

0.774

AC:

8185

AN:

10572

Middle Eastern (MID)

AF:

0.588

AC:

173

AN:

294

European-Non Finnish (NFE)

AF:

0.656

AC:

44616

AN:

67976

Other (OTH)

AF:

0.722

AC:

1524

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.503

Heterozygous variant carriers

1277

2554

3832

5109

6386

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

848

1696

2544

3392

4240

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.727

Hom.:

5107

Bravo

AF:

0.773

Asia WGS

AF:

0.900

AC:

3129

AN:

3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.93

CADD

Benign

1.7

(source)

DANN

Benign

0.47

PhyloP100

-0.053

Mutation Taster

=100/0

polymorphism (auto)

(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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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