Variant 12-112997557-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_002535.3(OAS2):c.665C>T(p.Pro222Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000336 in 1,613,948 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00032 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00034 ( 0 hom. )

Consequence

OAS2
NM_002535.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -2.14

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:

(HGNC:):

links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.043819755).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
OAS2	NM_002535.3 linkuse as main transcript	c.665C>T	p.Pro222Leu	missense_variant	4/10	ENST00000392583.7	NP_002526.2
OAS2	NM_016817.3 linkuse as main transcript	c.665C>T	p.Pro222Leu	missense_variant	4/11		NP_058197.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
OAS2	ENST00000392583.7 linkuse as main transcript	c.665C>T	p.Pro222Leu	missense_variant	4/10	1	NM_002535.3	ENSP00000376362	P2	P29728-2
	ENST00000552784.1 linkuse as main transcript	n.353+19842G>A		intron_variant, non_coding_transcript_variant		4

Frequencies

GnomAD3 genomes

AF:

0.000315

AC:

AN:

152158

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000193

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:

0.000588

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000358

AC:

AN:

251114

Hom.:

AF XY:

0.000361

AC XY:

AN XY:

135700

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000980

Gnomad FIN exome

AF:

0.0000924

Gnomad NFE exome

AF:

0.000731

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000338

AC:

494

AN:

1461790

Hom.:

Cov.:

AF XY:

0.000333

AC XY:

242

AN XY:

727198

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000348

Gnomad4 FIN exome

AF:

0.000168

Gnomad4 NFE exome

AF:

0.000419

Gnomad4 OTH exome

AF:

0.000215

GnomAD4 genome

AF:

0.000315

AC:

AN:

152158

Hom.:

Cov.:

AF XY:

0.000269

AC XY:

AN XY:

74318

show subpopulations

Gnomad4 AFR

AF:

0.000193

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:

0.000588

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000590

Hom.:

Bravo

AF:

0.000374

TwinsUK

AF:

0.000809

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000814

AC:

ExAC

AF:

0.000478

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000709

EpiControl

AF:

0.000653

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 submitter

clinical testing

Ambry Genetics

Jul 06, 2021

The c.665C>T (p.P222L) alteration is located in exon 4 (coding exon 4) of the OAS2 gene. This alteration results from a C to T substitution at nucleotide position 665, causing the proline (P) at amino acid position 222 to be replaced by a leucine (L). 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

0.089

BayesDel_addAF

Benign

-0.58

BayesDel_noAF

Benign

-0.70

CADD

Benign

0.10

DANN

Benign

0.61

DEOGEN2

Benign

0.026

T;.;.;T

Eigen

Benign

-1.6

Eigen_PC

Benign

-1.6

FATHMM_MKL

Benign

0.0058

LIST_S2

Benign

0.61

T;T;T;T

M_CAP

Benign

0.0034

MetaRNN

Benign

0.044

T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.32

N;N;.;.

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.23

PROVEAN

Benign

0.26

N;N;N;.

REVEL

Benign

0.0060

Sift

Benign

0.38

T;T;T;.

Sift4G

Benign

1.0

T;T;T;T

Polyphen

0.0030

B;B;.;.

Vest4

0.049

MVP

0.29

MPC

0.17

ClinPred

0.015

GERP RS

-7.6

Varity_R

0.015

gMVP

0.27

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over