Variant 7-74714904-A-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2

The NM_032999.4(GTF2I):c.811A>C(p.Lys271Gln) variant causes a missense change. The variant allele was found at a frequency of 0.00000562 in 1,601,924 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

GTF2I
NM_032999.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.00

Variant links:

Genes affected

GTF2I (HGNC:4659): (general transcription factor IIi) This gene encodes a phosphoprotein containing six characteristic repeat motifs. The encoded protein binds to the initiator element (Inr) and E-box element in promoters and functions as a regulator of transcription. This locus, along with several other neighboring genes, is deleted in Williams-Beuren syndrome. There are many closely related genes and pseudogenes for this gene on chromosome 7. This gene also has pseudogenes on chromosomes 9, 13, and 21. Alternatively spliced transcript variants encoding multiple isoforms have been observed. [provided by RefSeq, Jul 2013]

GTF2I links:

GTF2I-AS1 (HGNC:):

GTF2I-AS1 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.38988766).

BS2

High AC in GnomAdExome4 at 6 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GTF2I	NM_032999.4 linkuse as main transcript	c.811A>C	p.Lys271Gln	missense_variant	10/35	ENST00000573035.6	NP_127492.1	P78347-1X5DR09Q499G6A8K9W7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GTF2I	ENST00000573035.6 linkuse as main transcript	c.811A>C	p.Lys271Gln	missense_variant	10/35	1	NM_032999.4	ENSP00000460070.1		P78347-1

Frequencies

GnomAD3 genomes

AF:

0.0000198

AC:

AN:

151890

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000621

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000805

AC:

AN:

248340

Hom.:

AF XY:

0.0000149

AC XY:

AN XY:

134422

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:

0.0000662

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000414

AC:

AN:

1450034

Hom.:

Cov.:

AF XY:

0.00000693

AC XY:

AN XY:

721706

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:

0.0000589

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.06e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000198

AC:

AN:

151890

Hom.:

Cov.:

AF XY:

0.0000270

AC XY:

AN XY:

74170

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000621

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

ExAC

AF:

0.0000165

AC:

Asia WGS

AF:

0.000578

AC:

AN:

3476

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

Oct 04, 2024

The c.811A>C (p.K271Q) alteration is located in exon 10 (coding exon 9) of the GTF2I gene. This alteration results from a A to C substitution at nucleotide position 811, causing the lysine (K) at amino acid position 271 to be replaced by a glutamine (Q). 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

0.099

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.31

CADD

Uncertain

DANN

Benign

0.90

DEOGEN2

Benign

0.29

T;.

Eigen

Uncertain

0.32

Eigen_PC

Uncertain

0.32

FATHMM_MKL

Uncertain

0.81

LIST_S2

Uncertain

0.87

D;D

M_CAP

Benign

0.013

MetaRNN

Benign

0.39

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.1

L;L

PrimateAI

Uncertain

0.55

Sift4G

Benign

0.36

T;T

Polyphen

0.98

D;D

Vest4

0.54

MutPred

0.18

Loss of ubiquitination at K271 (P = 0.0012);Loss of ubiquitination at K271 (P = 0.0012);

MVP

0.81

ClinPred

0.32

GERP RS

5.4

Varity_R

0.12

gMVP

0.25

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.10

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