8-93755034-T-C
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Variant summary
Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6BP7
The NM_153704.6(TMEM67):āc.120T>Cā(p.Ser40=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000088 in 1,614,096 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 Conflicting classifications of pathogenicity (no stars).
Frequency
Genomes: š 0.00012 ( 0 hom., cov: 32)
Exomes š: 0.000084 ( 0 hom. )
Consequence
TMEM67
NM_153704.6 synonymous
NM_153704.6 synonymous
Scores
2
Clinical Significance
Conservation
PhyloP100: -0.403
Genes affected
TMEM67 (HGNC:28396): (transmembrane protein 67) The protein encoded by this gene localizes to the primary cilium and to the plasma membrane. The gene functions in centriole migration to the apical membrane and formation of the primary cilium. Multiple transcript variants encoding different isoforms have been found for this gene. Defects in this gene are a cause of Meckel syndrome type 3 (MKS3) and Joubert syndrome type 6 (JBTS6). [provided by RefSeq, Nov 2008]
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ACMG classification
Classification made for transcript
Verdict is Likely_benign. Variant got -4 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.84).
BP6
Variant 8-93755034-T-C is Benign according to our data. Variant chr8-93755034-T-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 262741.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=3}. Variant chr8-93755034-T-C is described in Lovd as [Benign]. Variant chr8-93755034-T-C is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=-0.403 with no splicing effect.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| TMEM67 | NM_153704.6 | c.120T>C | p.Ser40= | synonymous_variant | 1/28 | ENST00000453321.8 | NP_714915.3 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| TMEM67 | ENST00000453321.8 | c.120T>C | p.Ser40= | synonymous_variant | 1/28 | 1 | NM_153704.6 | ENSP00000389998 | P1 |
Frequencies
GnomAD3 genomes 0.000125 AC: 19AN: 152206Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.0000795 AC: 20AN: 251490Hom.: 0 AF XY: 0.0000809 AC XY: 11AN XY: 135920
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GnomAD4 exome AF: 0.0000841 AC: 123AN: 1461890Hom.: 0 Cov.: 31 AF XY: 0.0000811 AC XY: 59AN XY: 727246
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GnomAD4 genome 0.000125 AC: 19AN: 152206Hom.: 0 Cov.: 32 AF XY: 0.000148 AC XY: 11AN XY: 74370
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ClinVar
Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:3Benign:4
Revision: criteria provided, conflicting classifications
LINK: link
Submissions by phenotype
not specified Benign:2
| Likely benign, criteria provided, single submitter | clinical testing | PreventionGenetics, part of Exact Sciences | - | - - |
| Benign, no assertion criteria provided | clinical testing | Clinical Genetics, Academic Medical Center | - | - - |
Meckel syndrome, type 3 Uncertain:1
| Uncertain significance, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 13, 2018 | 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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. - |
Nephronophthisis 11 Uncertain:1
| Uncertain significance, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 13, 2018 | 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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. - |
Joubert syndrome 6 Uncertain:1
| Uncertain significance, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 13, 2018 | 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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. - |
Meckel-Gruber syndrome;C0431399:Familial aplasia of the vermis Benign:1
| Likely benign, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Dec 15, 2023 | - - |
not provided Benign:1
| Likely benign, no assertion criteria provided | clinical testing | Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center | - | - - |
Computational scores
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BayesDel_noAF
Benign
CADD
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DANN
Benign
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Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at