17-44207721-C-T

Position:

chr17-44207721-C-T

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 1P and 2B. PP2BP4_Moderate

The NM_014233.4(UBTF):c.2003G>A(p.Arg668Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000434 in 1,614,040 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

UBTF
NM_014233.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.37

Variant links:

Genes affected

UBTF (HGNC:12511): (upstream binding transcription factor) This gene encodes a member of the HMG-box DNA-binding protein family. The encoded protein plays a critical role in ribosomal RNA transcription as a key component of the pre-initiation complex, mediating the recruitment of RNA polymerase I to rDNA promoter regions. The encoded protein may also play important roles in chromatin remodeling and pre-rRNA processing, and its activity is regulated by both phosphorylation and acetylation. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. Pseudogenes of this gene are located on the short arm of chromosomes 3, 11 and X and the long arm of chromosome 11. [provided by RefSeq, Aug 2011]

UBTF links:

ATXN7L3-AS1 (HGNC:55298): (ATXN7L3 antisense RNA 1)

ATXN7L3-AS1 links:

MIR6782 (HGNC:50270): (microRNA 6782) microRNAs (miRNAs) are short (20-24 nt) non-coding RNAs that are involved in post-transcriptional regulation of gene expression in multicellular organisms by affecting both the stability and translation of mRNAs. miRNAs are transcribed by RNA polymerase II as part of capped and polyadenylated primary transcripts (pri-miRNAs) that can be either protein-coding or non-coding. The primary transcript is cleaved by the Drosha ribonuclease III enzyme to produce an approximately 70-nt stem-loop precursor miRNA (pre-miRNA), which is further cleaved by the cytoplasmic Dicer ribonuclease to generate the mature miRNA and antisense miRNA star (miRNA*) products. The mature miRNA is incorporated into a RNA-induced silencing complex (RISC), which recognizes target mRNAs through imperfect base pairing with the miRNA and most commonly results in translational inhibition or destabilization of the target mRNA. The RefSeq represents the predicted microRNA stem-loop. [provided by RefSeq, Sep 2009]

MIR6782 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), UBTF. . Gene score misZ 4.7489 (greater than the threshold 3.09). Trascript score misZ 6.257 (greater than threshold 3.09). GenCC has associacion of gene with childhood-onset motor and cognitive regression syndrome with extrapyramidal movement disorder.

BP4

Computational evidence support a benign effect (MetaRNN=0.1227712).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
UBTF	NM_014233.4 linkuse as main transcript	c.2003G>A	p.Arg668Gln	missense_variant	19/21	ENST00000436088.6	NP_055048.1
ATXN7L3-AS1	NR_184071.1 linkuse as main transcript	n.91+8791C>T		intron_variant, non_coding_transcript_variant
MIR6782	NR_106840.1 linkuse as main transcript			downstream_gene_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
UBTF	ENST00000436088.6 linkuse as main transcript	c.2003G>A	p.Arg668Gln	missense_variant	19/21	2	NM_014233.4	ENSP00000390669	P1	P17480-1
ATXN7L3-AS1	ENST00000586560.1 linkuse as main transcript	n.54-8370C>T		intron_variant, non_coding_transcript_variant		3
MIR6782	ENST00000619539.1 linkuse as main transcript			downstream_gene_variant

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152146

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000159

AC:

AN:

251490

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135920

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000109

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000924

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1461894

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727248

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152146

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74312

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000942

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.00000378

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00000824

AC:

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 submitter

clinical testing

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Jun 14, 2024

Variant summary: UBTF c.2003G>A (p.Arg668Gln) results in a conservative amino acid change in the encoded protein sequence. Three of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 1.6e-05 in 251490 control chromosomes. The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. To our knowledge, no occurrence of c.2003G>A in individuals affected with Childhood-Onset Motor And Cognitive Regression Syndrome With Extrapyramidal Movement Disorder and no experimental evidence demonstrating its impact on protein function have been reported. No submitters have cited clinical-significance assessments for this variant to ClinVar. Based on the evidence outlined above, the variant was classified as uncertain significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.17

BayesDel_addAF

Benign

0.00019

BayesDel_noAF

Uncertain

-0.010

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.12

.;T;T;.;T;.;.;T

Eigen

Benign

-0.015

Eigen_PC

Benign

0.098

FATHMM_MKL

Uncertain

0.81

LIST_S2

Benign

0.85

.;.;T;.;.;.;T;T

M_CAP

Benign

0.048

MetaRNN

Benign

0.12

T;T;T;T;T;T;T;T

MetaSVM

Uncertain

0.41

MutationAssessor

Benign

0.79

.;N;.;.;N;.;.;N

MutationTaster

Benign

0.57

D;D;D;D;D;N;N;N

PrimateAI

Benign

0.43

PROVEAN

Benign

-1.2

N;N;N;N;N;N;N;N

REVEL

Benign

0.28

Sift

Benign

0.36

T;D;T;T;D;T;T;D

Sift4G

Benign

0.40

T;T;T;T;T;T;T;T

Polyphen

0.56

P;P;.;P;P;P;P;P

Vest4

0.34

MVP

0.66

MPC

0.35

ClinPred

0.39

GERP RS

4.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.10

gMVP

0.091

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over