rs146253630

chr10-77986123-T-Achr10-77986123-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP2 PP3

The NM_007055.4(POLR3A):c.2938A>T(p.Ile980Phe) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I980V) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: POLR3A NM_007055.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.85

Genes affected

POLR3A (HGNC:30074): (RNA polymerase III subunit A) The protein encoded by this gene is the catalytic component of RNA polymerase III, which synthesizes small RNAs. The encoded protein also acts as a sensor to detect foreign DNA and trigger an innate immune response. [provided by RefSeq, Aug 2011]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant where missense usually causes diseases, POLR3A
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.745

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
POLR3A	NM_007055.4	c.2938A>T	p.Ile980Phe	missense_variant	22/31	ENST00000372371.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
POLR3A	ENST00000372371.8	c.2938A>T	p.Ile980Phe	missense_variant	22/31	1	NM_007055.4	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 27

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.64
BayesDel_addAF	Uncertain	0.050	T
BayesDel_noAF	Benign	-0.17
Cadd	Uncertain	25
Dann	Uncertain	0.99
DEOGEN2	Benign	0.33	T
Eigen	Uncertain	0.39
Eigen_PC	Uncertain	0.45
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.89	D
M_CAP	Benign	0.034	D
MetaRNN	Pathogenic	0.74	D
MetaSVM	Benign	-0.60	T
MutationAssessor	Benign	1.7	L
MutationTaster	Benign	1.0	D
PrimateAI	Uncertain	0.77	T
PROVEAN	Benign	-2.2	N
REVEL	Benign	0.22
Sift	Benign	0.13	T
Sift4G	Benign	0.14	T
Polyphen		0.68	P
Vest4		0.76
MutPred		0.45		Gain of methylation at K981 (P = 0.0426);
MVP		0.78
MPC		0.59
ClinPred		0.87	D
GERP RS		5.3
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.21
gMVP		0.76

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: chr10-79745881;