20-18467435-C-A

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBA1

The NM_006466.4(POLR3F):​c.-72C>A variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.953 in 1,546,632 control chromosomes in the GnomAD database, including 703,541 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.91 ( 63424 hom., cov: 37)
Exomes 𝑓: 0.96 ( 640117 hom. )

Consequence

POLR3F
NM_006466.4 5_prime_UTR

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -1.32
Variant links:
Genes affected
POLR3F (HGNC:15763): (RNA polymerase III subunit F) The protein encoded by this gene is one of more than a dozen subunits forming eukaryotic RNA polymerase III (RNA Pol III), which transcribes 5S ribosomal RNA and tRNA genes. This protein has been shown to bind both TFIIIB90 and TBP, two subunits of RNA polymerase III transcription initiation factor IIIB (TFIIIB). Unlike most of the other RNA Pol III subunits, the encoded protein is unique to this polymerase. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2013]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.77).
BP6
Variant 20-18467435-C-A is Benign according to our data. Variant chr20-18467435-C-A is described in ClinVar as [Benign]. Clinvar id is 2688249.Status of the report is criteria_provided_single_submitter, 1 stars.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.971 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
POLR3FNM_006466.4 linkuse as main transcriptc.-72C>A 5_prime_UTR_variant 1/9 ENST00000377603.5 NP_006457.2 Q9H1D9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
POLR3FENST00000377603 linkuse as main transcriptc.-72C>A 5_prime_UTR_variant 1/91 NM_006466.4 ENSP00000366828.4 Q9H1D9

Frequencies

GnomAD3 genomes
AF:
0.908
AC:
138178
AN:
152220
Hom.:
63391
Cov.:
37
show subpopulations
Gnomad AFR
AF:
0.766
Gnomad AMI
AF:
0.901
Gnomad AMR
AF:
0.934
Gnomad ASJ
AF:
0.975
Gnomad EAS
AF:
0.994
Gnomad SAS
AF:
0.914
Gnomad FIN
AF:
0.974
Gnomad MID
AF:
0.949
Gnomad NFE
AF:
0.967
Gnomad OTH
AF:
0.919
GnomAD4 exome
AF:
0.957
AC:
1334998
AN:
1394294
Hom.:
640117
Cov.:
21
AF XY:
0.957
AC XY:
667658
AN XY:
697786
show subpopulations
Gnomad4 AFR exome
AF:
0.759
Gnomad4 AMR exome
AF:
0.931
Gnomad4 ASJ exome
AF:
0.972
Gnomad4 EAS exome
AF:
0.994
Gnomad4 SAS exome
AF:
0.910
Gnomad4 FIN exome
AF:
0.974
Gnomad4 NFE exome
AF:
0.966
Gnomad4 OTH exome
AF:
0.950
GnomAD4 genome
AF:
0.908
AC:
138259
AN:
152338
Hom.:
63424
Cov.:
37
AF XY:
0.910
AC XY:
67746
AN XY:
74480
show subpopulations
Gnomad4 AFR
AF:
0.766
Gnomad4 AMR
AF:
0.934
Gnomad4 ASJ
AF:
0.975
Gnomad4 EAS
AF:
0.994
Gnomad4 SAS
AF:
0.914
Gnomad4 FIN
AF:
0.974
Gnomad4 NFE
AF:
0.967
Gnomad4 OTH
AF:
0.920
Alfa
AF:
0.940
Hom.:
20021
Bravo
AF:
0.900
Asia WGS
AF:
0.939
AC:
3265
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Benign, criteria provided, single submitterclinical testingUnidad de Genómica Garrahan, Hospital de Pediatría GarrahanJan 24, 2024This variant is classified as Benign based on local population frequency. This variant was detected in 98% of patients studied by a panel of primary immunodeficiencies. Number of patients: 93. Only high quality variants are reported. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.77
CADD
Benign
1.6
DANN
Benign
0.63
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0

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: rs1474974; hg19: chr20-18448079; API