rs56165898
Variant summary
Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong
The NM_001626.6(AKT2):c.960+3G>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000248 in 1,613,686 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_001626.6 splice_region, intron
Scores
Clinical Significance
Conservation
Publications
- hypoinsulinemic hypoglycemia and body hemihypertrophyInheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), G2P
- diabetes mellitus, noninsulin-dependentInheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
- AKT2-related familial partial lipodystrophyInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- type 2 diabetes mellitusInheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)
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ACMG classification
Our verdict: Likely_benign. The variant received -2 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| AKT2 | NM_001626.6 | c.960+3G>T | splice_region_variant, intron_variant | Intron 10 of 13 | ENST00000392038.7 | NP_001617.1 | ||
| AKT2 | NM_001330511.1 | c.832-150G>T | intron_variant | Intron 8 of 11 | NP_001317440.1 | |||
| AKT2 | NM_001243027.3 | c.774+3G>T | splice_region_variant, intron_variant | Intron 10 of 13 | NP_001229956.1 | |||
| AKT2 | NM_001243028.3 | c.774+3G>T | splice_region_variant, intron_variant | Intron 9 of 12 | NP_001229957.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152202Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.00000796 AC: 2AN: 251350 AF XY: 0.00 show subpopulations
GnomAD4 exome AF: 0.00000205 AC: 3AN: 1461484Hom.: 0 Cov.: 36 AF XY: 0.00 AC XY: 0AN XY: 727062 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152202Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74360 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Type 2 diabetes mellitus;C3278384:Hypoinsulinemic hypoglycemia and body hemihypertrophy 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. Variants that disrupt the consensus splice site are a relatively common cause of aberrant splicing (PMID: 17576681, 9536098). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. This variant has not been reported in the literature in individuals affected with AKT2-related conditions. This variant is present in population databases (rs56165898, ExAC 0.006%). This sequence change falls in intron 10 of the AKT2 gene. It does not directly change the encoded amino acid sequence of the AKT2 protein. It affects a nucleotide within the consensus splice site of the intron. -
Inborn genetic diseases Uncertain:1
The c.960+3G>T intronic alteration consists of a G to T substitution 3 nucleotides after exon 10 (coding exon 9) of the AKT2 gene. Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at