NM_001083962.2:c.790-9T>C

Variant names:

Variant summary

Our verdict is Benign. The variant received -16 ACMG points: 0P and 16B. BA1BS2BP5_Strong

This summary comes from the ClinGen Evidence Repository: The highest population minor allele frequency of the c.790-9T>C variant in TCF4 in gnomAD v4.1 is 0.006579 in the Amish population, which is higher than the ClinGen Rett and Angelman-like Disorders VCEP threshold (≥0.0003) for BA1, and therefore meets this criterion (BA1). The c.790-9T>C variant is observed in at least 2 unaffected individuals (internal database - GeneDx) (BS2). The c.790-9T>C variant is found in at least 3 patients with an alternate molecular basis of disease (internal database - GeneDx) (BP5_Strong). In summary, the c.790-9T>C variant in TCF4 is classified as benign based on the ACMG/AMP criteria (BA1, BS2, BP5_Strong). LINK:https://erepo.genome.network/evrepo/ui/classification/CA8970387/MONDO:0012589/032

Frequency

Genomes: 𝑓 0.00033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00054 ( 0 hom. )

Consequence

TCF4
NM_001083962.2 intron

Scores

Splicing: ADA: 0.00001215

Clinical Significance

Benign reviewed by expert panel U:1B:6

Conservation

PhyloP100: 2.97

Publications

0 publications found

Variant links:

Genes affected

TCF4 (HGNC:11634): (transcription factor 4) This gene encodes transcription factor 4, a basic helix-loop-helix transcription factor. The encoded protein recognizes an Ephrussi-box ('E-box') binding site ('CANNTG') - a motif first identified in immunoglobulin enhancers. This gene is broadly expressed, and may play an important role in nervous system development. Defects in this gene are a cause of Pitt-Hopkins syndrome. In addition, an intronic CTG repeat normally numbering 10-37 repeat units can expand to >50 repeat units and cause Fuchs endothelial corneal dystrophy. Multiple alternatively spliced transcript variants that encode different proteins have been described. [provided by RefSeq, Jul 2016]

TCF4 Gene-Disease associations (from GenCC):

Pitt-Hopkins syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Orphanet, G2P, ClinGen
corneal dystrophy, Fuchs endothelial, 3
Inheritance: AD Classification: STRONG Submitted by: G2P
autosomal dominant non-syndromic intellectual disability
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Fuchs' endothelial dystrophy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
autism spectrum disorder
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
intellectual disability
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

TCF4 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -16 ACMG points.

BP5

For more information check the summary or visit ClinGen Evidence Repository.

BS2

For more information check the summary or visit ClinGen Evidence Repository.

BA1

For more information check the summary or visit ClinGen Evidence Repository.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TCF4	NM_001083962.2 link	c.790-9T>C		intron_variant	Intron 10 of 19	ENST00000354452.8	NP_001077431.1	P15884-3B3KVA4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TCF4	ENST00000354452.8 link	c.790-9T>C		intron_variant	Intron 10 of 19	5	NM_001083962.2	ENSP00000346440.3		P15884-3

Frequencies

GnomAD3 genomes

AF:

0.000329

AC:

AN:

152182

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00658

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000753

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000441

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000275

AC:

AN:

251060

AF XY:

0.000243

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.000260

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000323

Gnomad NFE exome

AF:

0.000449

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000537

AC:

785

AN:

1460796

Hom.:

Cov.:

AF XY:

0.000511

AC XY:

371

AN XY:

726730

show subpopulations

African (AFR)

AF:

0.0000599

AC:

AN:

33410

American (AMR)

AF:

0.000246

AC:

AN:

44680

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26084

East Asian (EAS)

AF:

0.00

AC:

AN:

39646

South Asian (SAS)

AF:

0.00

AC:

AN:

86242

European-Finnish (FIN)

AF:

0.000337

AC:

AN:

53404

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5724

European-Non Finnish (NFE)

AF:

0.000658

AC:

731

AN:

1111278

Other (OTH)

AF:

0.000381

AC:

AN:

60328

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.468

Heterozygous variant carriers

124

165

206

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

120

150

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000329

AC:

AN:

152182

Hom.:

Cov.:

AF XY:

0.000256

AC XY:

AN XY:

74342

show subpopulations

African (AFR)

AF:

0.000121

AC:

AN:

41454

American (AMR)

AF:

0.0000655

AC:

AN:

15270

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5186

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.000753

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000441

AC:

AN:

68022

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.509

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000393

Hom.:

Bravo

AF:

0.000359

ClinVar

Significance: Benign

Submissions summary: Uncertain:1Benign:6

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

Pitt-Hopkins syndrome

Benign:3

Dec 07, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Aug 30, 2024

ClinGen Rett and Angelman-like Disorders Variant Curation Expert Panel

Significance:Benign

Review Status:reviewed by expert panel

Collection Method:curation

The highest population minor allele frequency of the c.790-9T>C variant in TCF4 in gnomAD v4.1 is 0.006579 in the Amish population, which is higher than the ClinGen Rett and Angelman-like Disorders VCEP threshold (≥0.0003) for BA1, and therefore meets this criterion (BA1). The c.790-9T>C variant is observed in at least 2 unaffected individuals (internal database - GeneDx) (BS2). The c.790-9T>C variant is found in at least 3 patients with an alternate molecular basis of disease (internal database - GeneDx) (BP5_Strong). In summary, the c.790-9T>C variant in TCF4 is classified as benign based on the ACMG/AMP criteria (BA1, BS2, BP5_Strong). -

not provided

Uncertain:1Benign:1

Jul 30, 2015

Eurofins Ntd Llc (ga)

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Aug 14, 2017

Athena Diagnostics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not specified

Benign:1

Mar 30, 2015

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

TCF4-related disorder

Benign:1

Aug 03, 2021

PreventionGenetics, part of Exact Sciences

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.62

CADD

Benign

(source)

DANN

Benign

0.85

PhyloP100

3.0

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000012

dbscSNV1_RF

Benign

0.086

SpliceAI score (max)

0.060

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over