chr12-112907104-C-T

Variant names:

• chr12-112907104-C-T
• rs370284276
• NM_016816.4:c.65C>T

Variant summary

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

The NM_016816.4(OAS1):​c.65C>T​(p.Pro22Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000434 in 1,614,106 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000020 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000027 (0 hom.)
• Consequence: OAS1 NM_016816.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.22
• Publications: 0 publications found

Genes affected

OAS1 (HGNC:8086): (2'-5'-oligoadenylate synthetase 1) This interferon-induced gene encodes a protein that synthesizes 2',5'-oligoadenylates (2-5As). This protein plays a key role in innate cellular antiviral response, and has been implicated in other cellular processes like cell growth and apoptosis. Alternative splicing results in multiple transcript variants with different enzymatic activities. Polymorphisms in this gene have been associated with susceptibility to viral infection, including SARS-CoV-2, and diabetes mellitus, type 1. This gene is located in a cluster of related genes on chromosome 12. [provided by RefSeq, May 2022]

OAS1 Gene-Disease associations (from GenCC):

• pulmonary alveolar proteinosis with hypogammaglobulinemia

  Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_016816.4. 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
	OAS1	NM_016816.4	MANE Select	c.65C>T	p.Pro22Leu	missense	Exon 1 of 6	NP_058132.2	P00973-1
	OAS1	NM_001032409.3		c.65C>T	p.Pro22Leu	missense	Exon 1 of 6	NP_001027581.1	P00973-3
	OAS1	NM_001406020.1		c.65C>T	p.Pro22Leu	missense	Exon 1 of 6	NP_001392949.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	OAS1	ENST00000202917.10	TSL:1 MANE Select	c.65C>T	p.Pro22Leu	missense	Exon 1 of 6	ENSP00000202917.5	P00973-1
	OAS1	ENST00000445409.7	TSL:1	c.65C>T	p.Pro22Leu	missense	Exon 1 of 6	ENSP00000388001.2	P00973-3
	OAS1	ENST00000540589.3	TSL:1	c.65C>T	p.Pro22Leu	missense	Exon 1 of 7	ENSP00000474083.2	S4R3A5

Frequencies

GnomAD3 genomes AF: 0.0000197 AC: 3 AN: 152216 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000724

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: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 0.00000274 AC: 4 AN: 1461890 Hom.: 0 Cov.: 31 AF XY: 0.00000413 AC XY: 3 AN XY: 727246

African (AFR) AF: 0.000119 AC: 4 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1112008

Other (OTH) AF: 0.00 AC: 0 AN: 60396

GnomAD4 genome AF: 0.0000197 AC: 3 AN: 152216 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74364

African (AFR) AF: 0.0000724 AC: 3 AN: 41450

American (AMR) AF: 0.00 AC: 0 AN: 15282

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5202

South Asian (SAS) AF: 0.00 AC: 0 AN: 4830

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10618

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68044

Other (OTH) AF: 0.00 AC: 0 AN: 2092

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ESP6500AA AF: 0.000227 AC: 1

ESP6500EA AF: 0.00 AC: 0

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

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

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.65
BayesDel_addAF	Uncertain	0.065	T
BayesDel_noAF	Benign	-0.14
CADD	Uncertain	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.42	T
Eigen	Uncertain	0.27
Eigen_PC	Benign	0.057
FATHMM_MKL	Uncertain	0.88	D
LIST_S2	Benign	0.85	D
M_CAP	Benign	0.023	T
MetaRNN	Uncertain	0.66	D
MetaSVM	Benign	-0.78	T
MutationAssessor	Pathogenic	3.0	M
PhyloP100		2.2
PrimateAI	Benign	0.43	T
PROVEAN	Pathogenic	-9.1	D
REVEL	Benign	0.22
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0010	D
Polyphen		1.0	D
Vest4		0.61
MVP		0.58
MPC		0.21
ClinPred		1.0	D
GERP RS		4.2
PromoterAI		-0.0088	Neutral
Varity_R		0.77
gMVP		0.37
Mutation Taster		=93/7	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: rs370284276; hg19: chr12-113344909;