chr8-22248487-G-A

Variant summary

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

The NM_001722.3(POLR3D):​c.493G>A​(p.Asp165Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000105 in 1,613,792 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: 0.0000096 ( 0 hom. )

Consequence

POLR3D
NM_001722.3 missense

Scores

3
9
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.45
Variant links:
Genes affected
POLR3D (HGNC:1080): (RNA polymerase III subunit D) This gene complements a temperature-sensitive mutant isolated from the BHK-21 Syrian hamster cell line. It leads to a block in progression through the G1 phase of the cell cycle at nonpermissive temperatures. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

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/exons MANE UniProt
POLR3DNM_001722.3 linkuse as main transcriptc.493G>A p.Asp165Asn missense_variant 6/9 ENST00000306433.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
POLR3DENST00000306433.9 linkuse as main transcriptc.493G>A p.Asp165Asn missense_variant 6/91 NM_001722.3 P1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152168
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000119
AC:
3
AN:
251072
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135718
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000654
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000881
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000958
AC:
14
AN:
1461624
Hom.:
0
Cov.:
33
AF XY:
0.0000124
AC XY:
9
AN XY:
727114
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000928
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000450
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152168
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74342
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.00000756
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

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 submitterclinical testingAmbry GeneticsMay 24, 2023The c.493G>A (p.D165N) alteration is located in exon 6 (coding exon 5) of the POLR3D gene. This alteration results from a G to A substitution at nucleotide position 493, causing the aspartic acid (D) at amino acid position 165 to be replaced by an asparagine (N). 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
Uncertain
0.46
BayesDel_addAF
Benign
-0.085
T
BayesDel_noAF
Benign
-0.16
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Benign
0.16
T;.;T
Eigen
Pathogenic
0.73
Eigen_PC
Pathogenic
0.77
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.94
.;D;D
M_CAP
Benign
0.018
T
MetaRNN
Uncertain
0.54
D;D;D
MetaSVM
Benign
-0.69
T
MutationAssessor
Uncertain
2.5
M;.;M
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.71
T
PROVEAN
Uncertain
-2.5
N;D;N
REVEL
Uncertain
0.39
Sift
Uncertain
0.028
D;T;D
Sift4G
Benign
0.11
T;T;T
Polyphen
0.99
D;.;D
Vest4
0.80
MutPred
0.46
Gain of catalytic residue at D165 (P = 0.0127);Gain of catalytic residue at D165 (P = 0.0127);Gain of catalytic residue at D165 (P = 0.0127);
MVP
0.59
MPC
0.47
ClinPred
0.78
D
GERP RS
5.9
Varity_R
0.25
gMVP
0.70

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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.

Other links and lift over

dbSNP: rs967660557; hg19: chr8-22106000; COSMIC: COSV100120080; COSMIC: COSV100120080; API