rs377743886
Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong
The NM_002180.3(IGHMBP2):āc.2012C>Gā(p.Thr671Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,436 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 Uncertain significance (ā ). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T671A) has been classified as Benign.
Frequency
Consequence
NM_002180.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -2 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
IGHMBP2 | NM_002180.3 | c.2012C>G | p.Thr671Arg | missense_variant | 13/15 | ENST00000255078.8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
IGHMBP2 | ENST00000255078.8 | c.2012C>G | p.Thr671Arg | missense_variant | 13/15 | 1 | NM_002180.3 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD4 exome AF: 0.00000137 AC: 2AN: 1461436Hom.: 0 Cov.: 40 AF XY: 0.00000138 AC XY: 1AN XY: 727032
GnomAD4 genome ? Cov.: 33
ClinVar
Submissions by phenotype
Autosomal recessive distal spinal muscular atrophy 1;C4015349:Charcot-Marie-Tooth disease axonal type 2S Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Jun 11, 2021 | This sequence change replaces threonine with arginine at codon 671 of the IGHMBP2 protein (p.Thr671Arg). The threonine residue is weakly conserved and there is a moderate physicochemical difference between threonine and arginine. 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. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt IGHMBP2 protein function. This variant has not been reported in the literature in individuals with IGHMBP2-related conditions. This variant is not present in population databases (ExAC no frequency). - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at
Publications
No publications associated with this variant yet.