Genetic Variant GTF2F1:p.Arg460His (chr19-6380456-C-T) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_002096.3(GTF2F1):c.1379G>A(p.Arg460His) variant causes a missense change. The variant allele was found at a frequency of 0.0000291 in 1,613,910 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R460C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

GTF2F1
NM_002096.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.34

Variant links:

Genes affected

GTF2F1 (HGNC:4652): (general transcription factor IIF subunit 1) Enables several functions, including RNA polymerase II general transcription initiation factor activity; phosphatase activator activity; and promoter-specific chromatin binding activity. Involved in several processes, including positive regulation of transcription by RNA polymerase II; response to virus; and transcription initiation from RNA polymerase II promoter. Located in cell junction and nucleoplasm. Part of transcription factor TFIID complex. [provided by Alliance of Genome Resources, Apr 2022]

GTF2F1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2

High AC in GnomAd4 at 5 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GTF2F1	NM_002096.3 link	c.1379G>A	p.Arg460His	missense_variant	Exon 13 of 13	ENST00000394456.10	NP_002087.2	P35269
GTF2F1	XM_047438710.1 link	c.1406G>A	p.Arg469His	missense_variant	Exon 12 of 12		XP_047294666.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
GTF2F1	ENST00000394456.10 link	c.1379G>A	p.Arg460His	missense_variant	Exon 13 of 13	1	NM_002096.3	ENSP00000377969.3	P35269
GTF2F1	ENST00000593678.5 link	c.1127G>A	p.Arg376His	missense_variant	Exon 10 of 10	2		ENSP00000469091.1	M0QXD6
GTF2F1	ENST00000594213.5 link	n.736G>A		non_coding_transcript_exon_variant	Exon 6 of 6	3
GTF2F1	ENST00000594965.1 link	n.697G>A		non_coding_transcript_exon_variant	Exon 6 of 6	3

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152046

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000725

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

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

GnomAD3 exomes

AF:

0.0000239

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:

0.0000867

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000653

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000287

AC:

AN:

1461864

Hom.:

Cov.:

AF XY:

0.0000206

AC XY:

AN XY:

727236

show subpopulations

Gnomad4 AFR exome

AF:

0.000119

Gnomad4 AMR exome

AF:

0.000112

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000261

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000329

AC:

AN:

152046

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74250

show subpopulations

Gnomad4 AFR

AF:

0.0000725

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000434

Hom.:

Bravo

AF:

0.0000302

ExAC

AF:

0.0000165

AC:

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

Dec 17, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1379G>A (p.R460H) alteration is located in exon 13 (coding exon 13) of the GTF2F1 gene. This alteration results from a G to A substitution at nucleotide position 1379, causing the arginine (R) at amino acid position 460 to be replaced by a histidine (H). 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

Pathogenic

0.79

BayesDel_addAF

Benign

-0.13

BayesDel_noAF

Benign

-0.17

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.55

D;T

Eigen

Uncertain

0.19

Eigen_PC

Benign

0.19

FATHMM_MKL

Uncertain

0.86

LIST_S2

Uncertain

0.97

D;D

M_CAP

Benign

0.066

MetaRNN

Uncertain

0.74

D;D

MetaSVM

Benign

-0.42

MutationAssessor

Pathogenic

3.1

M;.

PrimateAI

Pathogenic

0.80

PROVEAN

Uncertain

-3.6

D;.

REVEL

Benign

0.24

Sift

Uncertain

0.0030

D;.

Sift4G

Uncertain

0.016

D;D

Polyphen

0.044

B;.

Vest4

0.58

MutPred

0.80

Loss of MoRF binding (P = 0.0183);.;

MVP

0.68

MPC

1.0

ClinPred

0.84

GERP RS

2.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.2

Varity_R

0.63

gMVP

0.82

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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