rs147061560
Variant summary
Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2
The NM_021942.6(TRAPPC11):c.3215C>A(p.Thr1072Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000415 in 1,613,568 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T1072M) has been classified as Uncertain significance.
Frequency
Consequence
NM_021942.6 missense
Scores
Clinical Significance
Conservation
Publications
- autosomal recessive limb-girdle muscular dystrophyInheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
- autosomal recessive limb-girdle muscular dystrophy type R18Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Myriad Women’s Health, Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine, G2P, Orphanet
- intellectual disability-hyperkinetic movement-truncal ataxia syndromeInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- triple-A syndromeInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Uncertain_significance. The variant received 2 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| TRAPPC11 | NM_021942.6 | c.3215C>A | p.Thr1072Lys | missense_variant | Exon 29 of 30 | ENST00000334690.11 | NP_068761.4 | |
| TRAPPC11 | XM_024454179.2 | c.3215C>A | p.Thr1072Lys | missense_variant | Exon 29 of 30 | XP_024309947.1 | ||
| TRAPPC11 | XM_024454180.2 | c.3215C>A | p.Thr1072Lys | missense_variant | Exon 30 of 31 | XP_024309948.1 | ||
| TRAPPC11 | NM_199053.3 | c.3199+16C>A | intron_variant | Intron 29 of 30 | NP_951008.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152162Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.00000797 AC: 2AN: 251020 AF XY: 0.00 show subpopulations
GnomAD4 exome AF: 0.0000445 AC: 65AN: 1461406Hom.: 0 Cov.: 31 AF XY: 0.0000509 AC XY: 37AN XY: 726992 show subpopulations ⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
Age Distribution
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152162Hom.: 0 Cov.: 33 AF XY: 0.0000269 AC XY: 2AN XY: 74318 show subpopulations
ClinVar
Submissions by phenotype
Autosomal recessive limb-girdle muscular dystrophy type R18 Uncertain:1
In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals affected with TRAPPC11-related conditions. This variant is present in population databases (rs147061560, ExAC 0.001%). This sequence change replaces threonine with lysine at codon 1072 of the TRAPPC11 protein (p.Thr1072Lys). The threonine residue is moderately conserved and there is a moderate physicochemical difference between threonine and lysine. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at