rs75090842

Variant names:

• chr18-55222666-G-A
• rs75090842
• NM_001083962.2:c.*5369C>T

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BS1 BS2

The NM_001083962.2(TCF4):​c.*5369C>T variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000387 in 152,272 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency:
  • Genomes: 𝑓 0.00039 (0 hom., cov: 33)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: TCF4 NM_001083962.2 3_prime_UTR
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.114
• Publications: 0 publications found

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: Orphanet, ClinGen, G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae)
• 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

ACMG classification

Our verdict: Benign. The variant received -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.86).
• BP6: Variant 18-55222666-G-A is Benign according to our data. Variant chr18-55222666-G-A is described in ClinVar as Benign. ClinVar VariationId is 889920.Status of the report is criteria_provided_single_submitter, 1 stars.
• BS1: Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.000387 (59/152272) while in subpopulation EAS AF = 0.00655 (34/5190). AF 95% confidence interval is 0.00482. There are 0 homozygotes in GnomAd4. There are 35 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
• BS2: High AC in GnomAd4 at 59 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001083962.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TCF4	NM_001083962.2	MANE Select	c.*5369C>T		3_prime_UTR	Exon 20 of 20	NP_001077431.1	P15884-3
	TCF4	NM_001243226.3		c.*5369C>T		3_prime_UTR	Exon 21 of 21	NP_001230155.2	E9PH57
	TCF4	NM_001243228.2		c.*5369C>T		3_prime_UTR	Exon 20 of 20	NP_001230157.1	H3BTP3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TCF4	ENST00000354452.8	TSL:5 MANE Select	c.*5369C>T		3_prime_UTR	Exon 20 of 20	ENSP00000346440.3	P15884-3
	TCF4	ENST00000356073.8	TSL:1	c.*5369C>T		3_prime_UTR	Exon 20 of 20	ENSP00000348374.4	P15884-1
	TCF4	ENST00000638154.3	TSL:5	c.*5369C>T		3_prime_UTR	Exon 19 of 19	ENSP00000490625.2	A0A1B0GVR6

Frequencies

GnomAD3 genomes AF: 0.000381 AC: 58 AN: 152154 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.0000965

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000655

Gnomad ASJ AF: 0.00173

Gnomad EAS AF: 0.00654

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000176

Gnomad OTH AF: 0.00

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 438 Hom.: 0 Cov.: 0 AF XY: 0.00 AC XY: 0 AN XY: 266

African (AFR) AC: 0 AN: 0

American (AMR) AC: 0 AN: 0

Ashkenazi Jewish (ASJ) AC: 0 AN: 0

East Asian (EAS) AC: 0 AN: 0

South Asian (SAS) AC: 0 AN: 0

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 426

Middle Eastern (MID) AC: 0 AN: 0

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 8

Other (OTH) AF: 0.00 AC: 0 AN: 4

GnomAD4 genome AF: 0.000387 AC: 59 AN: 152272 Hom.: 0 Cov.: 33 AF XY: 0.000470 AC XY: 35 AN XY: 74452

African (AFR) AF: 0.0000963 AC: 4 AN: 41554

American (AMR) AF: 0.0000654 AC: 1 AN: 15282

Ashkenazi Jewish (ASJ) AF: 0.00173 AC: 6 AN: 3472

East Asian (EAS) AF: 0.00655 AC: 34 AN: 5190

South Asian (SAS) AF: 0.000415 AC: 2 AN: 4822

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10616

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.000176 AC: 12 AN: 68016

Other (OTH) AF: 0.00 AC: 0 AN: 2114

Alfa AF: 0.000224 Hom.: 0

Bravo AF: 0.000374

Asia WGS AF: 0.00202 AC: 7 AN: 3478

ClinVar

ClinVar submissions as Germline

Significance: Benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	Pitt-Hopkins syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.86
CADD	Benign	0.51
DANN	Benign	0.71
PhyloP100		-0.11

Splicing

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

Other links and lift over

dbSNP: rs75090842; hg19: chr18-52889897;