Genetic Variant GTF2IRD2B:p.Ser141Leu (chr7-75123199-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

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

The NM_001003795.3(GTF2IRD2B):c.422C>T(p.Ser141Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000623 in 1,397,000 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 11/17 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000015 ( 0 hom., cov: 21)

Exomes 𝑓: 0.000062 ( 1 hom. )

Failed GnomAD Quality Control

Consequence

GTF2IRD2B
NM_001003795.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.36

Variant links:

Genes affected

GTF2IRD2B (HGNC:33125): (GTF2I repeat domain containing 2B) This gene encodes a glycosylated phosphoprotein with a leucine zipper motif, two helix-loop-helix motifs (I repeats) that are similar to domains found in the TFII-I family of transcription factors, one CHARLIE8 transposable element-like sequence, and a BED zinc finger. This gene lies within a region that is deleted in Williams-Beuren syndrome. Alternatively spliced variants which encode different protein isoforms have been described; however, not all variants have been fully characterized. [provided by RefSeq, Jul 2008]

GTF2IRD2B 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=0.20064628).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GTF2IRD2B	NM_001003795.3 link	c.422C>T	p.Ser141Leu	missense_variant	Exon 5 of 16	ENST00000472837.7	NP_001003795.1	Q6EKJ0-1
GTF2IRD2B	NM_001368302.1 link	c.908C>T	p.Ser303Leu	missense_variant	Exon 5 of 16		NP_001355231.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GTF2IRD2B	ENST00000472837.7 link	c.422C>T	p.Ser141Leu	missense_variant	Exon 5 of 16	1	NM_001003795.3	ENSP00000480524.1		Q6EKJ0-1

Frequencies

GnomAD3 genomes

AF:

0.0000147

AC:

AN:

136128

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:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000313

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000338

AC:

AN:

206988

Hom.:

AF XY:

0.00000879

AC XY:

AN XY:

113782

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:

0.0000512

Gnomad NFE exome

AF:

0.0000610

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000623

AC:

AN:

1397000

Hom.:

Cov.:

AF XY:

0.0000636

AC XY:

AN XY:

691766

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:

0.0000126

Gnomad4 FIN exome

AF:

0.0000194

Gnomad4 NFE exome

AF:

0.0000771

Gnomad4 OTH exome

AF:

0.0000174

GnomAD4 genome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.0000147

AC:

AN:

136128

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

65372

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:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000313

Gnomad4 OTH

AF:

0.00

ExAC

AF:

0.0000331

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Sep 16, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.422C>T (p.S141L) alteration is located in exon 5 (coding exon 4) of the GTF2IRD2B gene. This alteration results from a C to T substitution at nucleotide position 422, causing the serine (S) at amino acid position 141 to be replaced by a leucine (L). 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

-0.26

BayesDel_noAF

Benign

-0.47

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.030

T;.;.

Eigen

Benign

-0.58

Eigen_PC

Benign

-0.70

FATHMM_MKL

Benign

0.062

LIST_S2

Uncertain

0.88

D;.;D

M_CAP

Benign

0.0067

MetaRNN

Benign

0.20

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.1

M;.;.

PrimateAI

Benign

0.43

Sift4G

Uncertain

0.0090

D;D;D

Polyphen

0.68

P;.;.

Vest4

0.30

MutPred

0.66

Loss of phosphorylation at S141 (P = 0.0827);Loss of phosphorylation at S141 (P = 0.0827);Loss of phosphorylation at S141 (P = 0.0827);

MVP

0.048

ClinPred

0.099

GERP RS

2.1

Varity_R

0.20

gMVP

0.094

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