16-51636-G-A

Position:

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PS1_ModeratePM2PP5

The ENST00000293860.6(POLR3K):​c.121C>T​(p.Arg41Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000496 in 1,613,610 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (no stars). Another nucleotide change resulting in same amino acid change has been previously reported as Likely pathogenicin UniProt. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R41Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

POLR3K
ENST00000293860.6 missense

Scores

5
8
3

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 2.00
Variant links:
Genes affected
POLR3K (HGNC:14121): (RNA polymerase III subunit K) This gene encodes a small essential subunit of RNA polymerase III, the polymerase responsible for synthesizing transfer and small ribosomal RNAs in eukaryotes. The carboxy-terminal domain of this subunit shares a high degree of sequence similarity to the carboxy-terminal domain of an RNA polymerase II elongation factor. This similarity in sequence is supported by functional studies showing that this subunit is required for proper pausing and termination during transcription. Pseudogenes of this gene are found on chromosomes 13 and 17.[provided by RefSeq, Jul 2010]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PS1
Transcript ENST00000293860.6 (POLR3K) is affected with MISSENSE_VARIANT having same AA change as one Pathogenic present in UniProt
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 16-51636-G-A is Pathogenic according to our data. Variant chr16-51636-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 1065610.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
POLR3KNM_016310.5 linkuse as main transcriptc.121C>T p.Arg41Trp missense_variant 2/3 ENST00000293860.6 NP_057394.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
POLR3KENST00000293860.6 linkuse as main transcriptc.121C>T p.Arg41Trp missense_variant 2/31 NM_016310.5 ENSP00000293860 P1
POLR3KENST00000481810.1 linkuse as main transcriptn.507C>T non_coding_transcript_exon_variant 1/22

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152118
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000411
AC:
6
AN:
1461492
Hom.:
0
Cov.:
30
AF XY:
0.00000413
AC XY:
3
AN XY:
727078
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000540
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152118
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74306
show subpopulations
Gnomad4 AFR
AF:
0.0000242
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Leukodystrophy, hypomyelinating, 21 Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMMay 04, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.52
BayesDel_addAF
Pathogenic
0.24
D
BayesDel_noAF
Uncertain
0.11
CADD
Pathogenic
26
DANN
Uncertain
1.0
Eigen
Uncertain
0.28
Eigen_PC
Uncertain
0.36
FATHMM_MKL
Uncertain
0.91
D
M_CAP
Benign
0.083
D
MetaRNN
Uncertain
0.72
D
MetaSVM
Benign
-0.62
T
MutationTaster
Benign
1.0
D
PrimateAI
Pathogenic
0.82
D
PROVEAN
Pathogenic
-6.3
D
REVEL
Uncertain
0.32
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0010
D
Vest4
0.76
MutPred
0.57
Loss of disorder (P = 0.0276);
MVP
0.60
MPC
0.44
ClinPred
0.99
D
GERP RS
5.3
gMVP
0.67

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1432006875; hg19: chr16-101636; API