rs35313369
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Variant summary
Our verdict is Likely benign. Variant got -6 ACMG points: 2P and 8B. PM2BP4_ModerateBP6BP7BS1
The NM_173630.4(RTTN):c.5883G>A(p.Leu1961=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000344 in 1,613,978 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Genomes: 𝑓 0.0018 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00020 ( 1 hom. )
Consequence
RTTN
NM_173630.4 synonymous
NM_173630.4 synonymous
Scores
2
Clinical Significance
Conservation
PhyloP100: 0.607
Genes affected
RTTN (HGNC:18654): (rotatin) This gene encodes a large protein whose specific function is unknown. Absence of the orthologous protein in mouse results in embryonic lethality with deficient axial rotation, abnormal differentiation of the neural tube, and randomized looping of the heart tube during development. In human, mutations in this gene are associated with polymicrogyria with seizures. In human fibroblasts this protein localizes at the ciliary basal bodies. Given the intracellular localization of this protein and the phenotypic effects of mutations, this gene is suspected of playing a role in the maintenance of normal ciliary structure which in turn effects the developmental process of left-right organ specification, axial rotation, and perhaps notochord development. [provided by RefSeq, Jan 2013]
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ACMG classification
Classification made for transcript
Verdict is Likely_benign. Variant got -6 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.46).
BP6
Variant 18-70024789-C-T is Benign according to our data. Variant chr18-70024789-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 212084.We mark this variant Likely_benign, oryginal submissions are: {Benign=1, Likely_benign=1, Uncertain_significance=1}.
BP7
Synonymous conserved (PhyloP=0.607 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00175 (267/152256) while in subpopulation AFR AF= 0.00623 (259/41546). AF 95% confidence interval is 0.00561. There are 0 homozygotes in gnomad4. There are 125 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
RTTN | NM_173630.4 | c.5883G>A | p.Leu1961= | synonymous_variant | 44/49 | ENST00000640769.2 | NP_775901.3 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
RTTN | ENST00000640769.2 | c.5883G>A | p.Leu1961= | synonymous_variant | 44/49 | 2 | NM_173630.4 | ENSP00000491507 | P1 |
Frequencies
GnomAD3 genomes AF: 0.00176 AC: 268AN: 152138Hom.: 1 Cov.: 32
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GnomAD3 exomes AF: 0.000474 AC: 118AN: 249186Hom.: 0 AF XY: 0.000333 AC XY: 45AN XY: 135158
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GnomAD4 exome AF: 0.000197 AC: 288AN: 1461722Hom.: 1 Cov.: 30 AF XY: 0.000158 AC XY: 115AN XY: 727166
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GnomAD4 genome AF: 0.00175 AC: 267AN: 152256Hom.: 0 Cov.: 32 AF XY: 0.00168 AC XY: 125AN XY: 74444
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ClinVar
Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:3
Revision: criteria provided, conflicting classifications
LINK: link
Submissions by phenotype
not provided Benign:2
Benign, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Jan 22, 2024 | - - |
Likely benign, criteria provided, single submitter | clinical testing | GeneDx | Dec 28, 2020 | - - |
not specified Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Genetic Services Laboratory, University of Chicago | May 01, 2015 | - - |
RTTN-related disorder Benign:1
Likely benign, no assertion criteria provided | clinical testing | PreventionGenetics, part of Exact Sciences | May 07, 2019 | 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
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BayesDel_noAF
Benign
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DANN
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Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at