OAS3 p.Ile438Ile

Variant names:

• chr12-112949142-C-C
• ENST00000228928.12:c.

Your query was ambiguous. Multiple possible variants found:

• chr12-112949143--
• chr12-112949145-T-C
• chr12-112949145-T-A

Variant summary

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

The ENST00000228928.12(OAS3):​c. variant causes a exon region change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: OAS3 ENST00000228928.12 exon_region
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.372
• Publications: 0 publications found

Genes affected

OAS3 (HGNC:8088): (2'-5'-oligoadenylate synthetase 3) This gene encodes an enzyme included in the 2', 5' oligoadenylate synthase family. This enzyme is induced by interferons and catalyzes the 2', 5' oligomers of adenosine in order to bind and activate RNase L. This enzyme family plays a significant role in the inhibition of cellular protein synthesis and viral infection resistance. [provided by RefSeq, Jul 2008]

ENSG00000257452 (HGNC:):

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: ENST00000228928.12. 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
There are no transcript annotations for this variant.

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	OAS3	ENST00000228928.12	TSL:1 MANE Select	c.		exon_region	Exon 6 of 16	ENSP00000228928.7	Q9Y6K5
	OAS3	ENST00000679493.1		c.		exon_region	Exon 6 of 16	ENSP00000506397.1	A0A7P0TAU8
	OAS3	ENST00000681346.1		c.		exon_region	Exon 6 of 17	ENSP00000505939.1	A0A7P0Z4F1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 56

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		0.37

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr12-113386947;