2-178432116-A-G

Variant names:

• chr2-178432116-A-G
• NM_003690.5:c.923T>C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_003690.5(PRKRA):​c.923T>C​(p.Ile308Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 35)
• Consequence: PRKRA NM_003690.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.93

Genes affected

PRKRA (HGNC:9438): (protein activator of interferon induced protein kinase EIF2AK2) This gene encodes a protein kinase activated by double-stranded RNA which mediates the effects of interferon in response to viral infection. Mutations in this gene have been associated with dystonia. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2008]

CHROMR (HGNC:54059): (cholesterol induced regulator of metabolism RNA)

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

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

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PRKRA	NM_003690.5	c.923T>C	p.Ile308Thr	missense_variant	Exon 8 of 8	ENST00000325748.9	NP_003681.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PRKRA	ENST00000325748.9	c.923T>C	p.Ile308Thr	missense_variant	Exon 8 of 8	1	NM_003690.5	ENSP00000318176.4

Frequencies

GnomAD3 genomes Cov.: 35

GnomAD4 exome Cov.: 59

GnomAD4 genome Cov.: 35

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Dystonia 16 Uncertain:1

Jul 23, 2020

Revvity Omics, Revvity

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.93
BayesDel_addAF	Uncertain	0.14	D
BayesDel_noAF	Uncertain	-0.030
CADD	Pathogenic	27
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.52	D;.;.
Eigen	Pathogenic	0.72
Eigen_PC	Pathogenic	0.70
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.94	D;D;D
M_CAP	Uncertain	0.11	D
MetaRNN	Uncertain	0.61	D;D;D
MetaSVM	Uncertain	0.42	D
MutationAssessor	Uncertain	2.7	M;.;.
PrimateAI	Pathogenic	0.82	D
PROVEAN	Uncertain	-4.0	D;D;D
REVEL	Pathogenic	0.72
Sift	Uncertain	0.0010	D;D;D
Sift4G	Uncertain	0.0020	D;D;D
Polyphen		1.0	D;.;P
Vest4		0.55
MutPred		0.37		Loss of stability (P = 0.026);.;.;
MVP		0.92
MPC		1.9
ClinPred		0.99	D
GERP RS		5.3
Varity_R		0.49
gMVP		0.59

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-179296843; COSMIC: COSV57870589; COSMIC: COSV57870589;