5-150357728-C-T
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Variant summary
Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBS1_SupportingBS2
The NM_001371623.1(TCOF1):c.-19C>T variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00014 in 1,545,370 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 Uncertain significance (★★).
Frequency
Genomes: 𝑓 0.00034 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00012 ( 0 hom. )
Consequence
TCOF1
NM_001371623.1 5_prime_UTR
NM_001371623.1 5_prime_UTR
Scores
1
1
Clinical Significance
Conservation
PhyloP100: 0.650
Genes affected
TCOF1 (HGNC:11654): (treacle ribosome biogenesis factor 1) This gene encodes a nucleolar protein with a LIS1 homology domain. The protein is involved in ribosomal DNA gene transcription through its interaction with upstream binding factor (UBF). Mutations in this gene have been associated with Treacher Collins syndrome, a disorder which includes abnormal craniofacial development. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2008]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -9 ACMG points.
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.75).
BS1
Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.000335 (51/152086) while in subpopulation AMR AF= 0.00235 (36/15288). AF 95% confidence interval is 0.00175. There are 0 homozygotes in gnomad4. There are 31 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting
BS2
High AC in GnomAd4 at 51 AD gene.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
TCOF1 | NM_001371623.1 | c.-19C>T | 5_prime_UTR_variant | 1/27 | ENST00000643257.2 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
TCOF1 | ENST00000643257.2 | c.-19C>T | 5_prime_UTR_variant | 1/27 | NM_001371623.1 | P3 |
Frequencies
GnomAD3 genomes AF: 0.000336 AC: 51AN: 151968Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.000228 AC: 33AN: 144658Hom.: 0 AF XY: 0.000245 AC XY: 19AN XY: 77432
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GnomAD4 exome AF: 0.000119 AC: 166AN: 1393284Hom.: 0 Cov.: 31 AF XY: 0.000131 AC XY: 90AN XY: 687296
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GnomAD4 genome AF: 0.000335 AC: 51AN: 152086Hom.: 0 Cov.: 32 AF XY: 0.000417 AC XY: 31AN XY: 74378
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | not provided | Breakthrough Genomics, Breakthrough Genomics | - | - - |
Treacher Collins Syndrome, Dominant Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jun 14, 2016 | - - |
Computational scores
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Name
Calibrated prediction
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BayesDel_noAF
Benign
CADD
Benign
DANN
Uncertain
RBP_binding_hub_radar
RBP_regulation_power_radar
Splicing
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Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at