Variant 2-27337941-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001035521.3(GTF3C2):c.935A>G(p.His312Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000552 in 1,449,332 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000055 ( 0 hom. )

Consequence

GTF3C2
NM_001035521.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.83

Variant links:

Genes affected

GTF3C2 (HGNC:4665): (general transcription factor IIIC subunit 2) Contributes to DNA binding activity. Involved in transcription by RNA polymerase III. Located in nucleoplasm. Part of transcription factor TFIIIC complex. [provided by Alliance of Genome Resources, Apr 2022]

GTF3C2 links:

GTF3C2-AS1 (HGNC:40269): (GTF3C2 antisense RNA 1)

GTF3C2-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.21031639).

BS2

High AC in GnomAdExome4 at 80 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GTF3C2	NM_001035521.3 link	c.935A>G	p.His312Arg	missense_variant	5/19	ENST00000264720.8	NP_001030598.1	Q8WUA4-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GTF3C2	ENST00000264720.8 link	c.935A>G	p.His312Arg	missense_variant	5/19	1	NM_001035521.3	ENSP00000264720.3		Q8WUA4-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000159

AC:

AN:

251488

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135918

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:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000352

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000552

AC:

AN:

1449332

Hom.:

Cov.:

AF XY:

0.0000540

AC XY:

AN XY:

721934

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:

0.0000727

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000579

Hom.:

Bravo

AF:

0.0000189

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.000119

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

Ambry Genetics

Aug 01, 2024

The c.935A>G (p.H312R) alteration is located in exon 6 (coding exon 4) of the GTF3C2 gene. This alteration results from a A to G substitution at nucleotide position 935, causing the histidine (H) at amino acid position 312 to be replaced by an arginine (R). 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

Benign

0.086

BayesDel_addAF

Benign

-0.080

BayesDel_noAF

Benign

-0.29

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.18

T;T;T

Eigen

Benign

0.038

Eigen_PC

Benign

0.19

FATHMM_MKL

Benign

0.71

LIST_S2

Benign

0.75

.;T;T

M_CAP

Benign

0.024

MetaRNN

Benign

0.21

T;T;T

MetaSVM

Benign

-0.75

MutationAssessor

Benign

0.34

N;N;.

PrimateAI

Uncertain

0.49

PROVEAN

Benign

-0.68

N;N;.

REVEL

Benign

0.10

Sift

Benign

0.19

T;T;.

Sift4G

Benign

0.070

T;T;T

Polyphen

0.65

P;P;.

Vest4

0.41

MVP

0.21

MPC

0.27

ClinPred

0.22

GERP RS

4.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.054

gMVP

0.21

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