Variant 2-48646512-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_006872.5(GTF2A1L):c.448A>G(p.Ile150Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000547 in 1,461,800 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

GTF2A1L
NM_006872.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.183

Variant links:

Genes affected

GTF2A1L (HGNC:30727): (general transcription factor IIA subunit 1 like) The assembly and stability of the RNA polymerase II transcription pre-initiation complex on a eukaryotic core promoter involve the effects of transcription factor IIA (TFIIA) on the interaction between TATA-binding protein (TBP) and DNA. This gene encodes a germ cell-specific counterpart of the large (alpha/beta) subunit of general transcription factor TFIIA that is able to stabilize the binding of TBP to DNA and may be uniquely important to testis biology. Alternative splicing for this locus has been observed and two variants, encoding distinct isoforms, have been identified. Co-transcription of this gene and the neighboring upstream gene generates a rare transcript (SALF), which encodes a fusion protein comprised of sequence sharing identity with each individual gene product. [provided by RefSeq, Mar 2014]

GTF2A1L links:

STON1-GTF2A1L (HGNC:):

STON1-GTF2A1L links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.10825366).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GTF2A1L	NM_006872.5 linkuse as main transcript	c.448A>G	p.Ile150Val	missense_variant	6/9	ENST00000403751.8
STON1-GTF2A1L	NM_001198593.2 linkuse as main transcript	c.2560A>G	p.Ile854Val	missense_variant	8/11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GTF2A1L	ENST00000403751.8 linkuse as main transcript	c.448A>G	p.Ile150Val	missense_variant	6/9	1	NM_006872.5	P1	Q9UNN4-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000402

AC:

AN:

248800

Hom.:

AF XY:

0.00

AC XY:

AN XY:

134672

show subpopulations

Gnomad AFR exome

AF:

0.0000615

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000547

AC:

AN:

1461800

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

727194

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

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:

0.00000180

Gnomad4 OTH exome

AF:

0.0000828

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000824

AC:

Asia WGS

AF:

0.00289

AC:

AN:

3478

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

Dec 08, 2023

The c.448A>G (p.I150V) alteration is located in exon 6 (coding exon 6) of the GTF2A1L gene. This alteration results from a A to G substitution at nucleotide position 448, causing the isoleucine (I) at amino acid position 150 to be replaced by a valine (V). 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

0.078

BayesDel_addAF

Benign

-0.44

BayesDel_noAF

Benign

-0.68

CADD

Benign

1.0

DANN

Benign

0.79

DEOGEN2

Benign

0.056

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

Eigen

Benign

-0.97

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.025

LIST_S2

Benign

0.67

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

M_CAP

Benign

0.012

MetaRNN

Benign

0.11

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

MetaSVM

Benign

-0.98

MutationAssessor

Benign

1.5

.;.;.;.;.;.;.;L

MutationTaster

Benign

1.0

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

PrimateAI

Benign

0.33

PROVEAN

Benign

-0.16

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

REVEL

Benign

0.086

Sift

Benign

0.38

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

Sift4G

Benign

0.72

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

Polyphen

0.0010

B;.;B;.;.;.;B;B

Vest4

0.080

MutPred

0.59

Gain of catalytic residue at I854 (P = 0.0279);Gain of catalytic residue at I854 (P = 0.0279);Gain of catalytic residue at I854 (P = 0.0279);.;.;.;.;.;

MVP

0.030

MPC

0.0039, 0.0069

ClinPred

0.033

GERP RS

-6.7

Varity_R

0.036

gMVP

0.20

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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