2-151485793-TC-T
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Variant summary
Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PM4
The NM_001164507.2(NEB):βc.25544delβ(p.Gly8515GlufsTer33) variant causes a frameshift change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,612,890 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (β ).
Frequency
Genomes: π 0.0000066 ( 0 hom., cov: 33)
Exomes π: 6.8e-7 ( 0 hom. )
Consequence
NEB
NM_001164507.2 frameshift
NM_001164507.2 frameshift
Scores
Not classified
Clinical Significance
Conservation
PhyloP100: 7.91
Genes affected
NEB (HGNC:7720): (nebulin) This gene encodes nebulin, a giant protein component of the cytoskeletal matrix that coexists with the thick and thin filaments within the sarcomeres of skeletal muscle. In most vertebrates, nebulin accounts for 3 to 4% of the total myofibrillar protein. The encoded protein contains approximately 30-amino acid long modules that can be classified into 7 types and other repeated modules. Protein isoform sizes vary from 600 to 800 kD due to alternative splicing that is tissue-, species-,and developmental stage-specific. Of the 183 exons in the nebulin gene, at least 43 are alternatively spliced, although exons 143 and 144 are not found in the same transcript. Of the several thousand transcript variants predicted for nebulin, the RefSeq Project has decided to create three representative RefSeq records. Mutations in this gene are associated with recessive nemaline myopathy. [provided by RefSeq, Sep 2009]
RIF1 (HGNC:23207): (replication timing regulatory factor 1) This gene encodes a protein that shares homology with the yeast teleomere binding protein, Rap1 interacting factor 1. This protein localizes to aberrant telomeres may be involved in DNA repair. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Apr 2010]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 4 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
PM4
Frameshift in the end of transcript resulting in stoplost. Downstream stopcodon found after 8569 codons.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
NEB | NM_001164507.2 | c.25544del | p.Gly8515GlufsTer33 | frameshift_variant | 182/182 | ENST00000427231.7 | NP_001157979.2 | |
NEB | NM_001164508.2 | c.25544del | p.Gly8515GlufsTer33 | frameshift_variant | 182/182 | ENST00000397345.8 | NP_001157980.2 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
NEB | ENST00000397345.8 | c.25544del | p.Gly8515GlufsTer33 | frameshift_variant | 182/182 | 5 | NM_001164508.2 | ENSP00000380505 | P5 | |
NEB | ENST00000427231.7 | c.25544del | p.Gly8515GlufsTer33 | frameshift_variant | 182/182 | 5 | NM_001164507.2 | ENSP00000416578 | A2 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152184Hom.: 0 Cov.: 33
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GnomAD4 exome AF: 6.85e-7 AC: 1AN: 1460706Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1AN XY: 726432
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GnomAD4 genome AF: 0.00000657 AC: 1AN: 152184Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74360
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Nemaline myopathy 2 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Counsyl | May 23, 2017 | - - |
Computational scores
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Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at