rs80194531
Variant summary
Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1
The NM_001174096.2(ZEB1):c.233A>C(p.Asn78Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00281 in 1,613,224 control chromosomes in the GnomAD database, including 94 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).
Frequency
Consequence
NM_001174096.2 missense
Scores
Clinical Significance
Conservation
Publications
- posterior polymorphous corneal dystrophy 3Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
- Fuchs' endothelial dystrophyInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- posterior polymorphous corneal dystrophyInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- corneal dystrophy, Fuchs endothelial, 6Inheritance: AD Classification: LIMITED Submitted by: G2P
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ACMG classification
Our verdict: Benign. The variant received -20 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0151 AC: 2299AN: 152114Hom.: 42 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.00395 AC: 989AN: 250552 AF XY: 0.00287 show subpopulations
GnomAD4 exome AF: 0.00152 AC: 2226AN: 1460992Hom.: 51 Cov.: 31 AF XY: 0.00129 AC XY: 935AN XY: 726774 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0151 AC: 2302AN: 152232Hom.: 43 Cov.: 32 AF XY: 0.0139 AC XY: 1035AN XY: 74452 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Corneal dystrophy, Fuchs endothelial, 6 Pathogenic:1Benign:2
The ZEB1 gene is known as TCF8 in the published literature (PMID: 20036349). TCF8NM_030751.5:c.233A>C in the ZEB1 gene has an allele frequency of 0.052 in African subpopulation in the gnomAD database. 30 homozygous occurrences are observed in the gnomAD database. Since the Fuchs Corneal Dystrophy was reported as Late-Onset, we determined to not apply the number of homozygousity as a strong benign evidence. In addition, Riazuddin et al. reported a patient with Late-Onset Fuchs Corneal Dystrophy barboring p.N78T (PMID: 20036349). These evidence suggest the variant to be classified as benign. ACMG/AMP criteria applied: BA1. -
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not specified Benign:1
While the frequency of the alternate allele in gnoMAD v2.0.2 is 0.083, its frequency in African populations is >5%. This suggests that previous classifications of this variant as pathogenic are in error. -
ZEB1-related disorder Benign:1
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). -
not provided Benign:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at