rs777894412
Variant summary
Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2
The NM_174934.4(SCN4B):c.112G>C(p.Ala38Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000178 in 1,598,100 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A38T) has been classified as Uncertain significance.
Frequency
Consequence
NM_174934.4 missense
Scores
Clinical Significance
Conservation
Publications
- familial atrial fibrillationInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- long QT syndrome 10Inheritance: Unknown, AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine
- long QT syndromeInheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
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ACMG classification
Our verdict: Benign. The variant received -9 ACMG points.
Variant Effect in Transcripts
ACMG analysis was done for transcript: NM_174934.4. You can select a different transcript below to see updated ACMG assignments.
RefSeq Transcripts
Ensembl Transcripts
| Sel. | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| SCN4B | TSL:1 MANE Select | c.112G>C | p.Ala38Pro | missense | Exon 2 of 5 | ENSP00000322460.4 | Q8IWT1-1 | ||
| SCN4B | TSL:1 | n.255G>C | non_coding_transcript_exon | Exon 1 of 4 | |||||
| SCN4B | TSL:4 | c.62-3843G>C | intron | N/A | ENSP00000436343.1 | Q8IWT1-3 |
Frequencies
GnomAD3 genomes AF: 0.0000934 AC: 13AN: 139144Hom.: 0 Cov.: 31 show subpopulations
GnomAD2 exomes AF: 0.000346 AC: 87AN: 251446 AF XY: 0.000508 show subpopulations
GnomAD4 exome AF: 0.000186 AC: 272AN: 1458828Hom.: 1 Cov.: 32 AF XY: 0.000296 AC XY: 215AN XY: 725664 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000933 AC: 13AN: 139272Hom.: 0 Cov.: 31 AF XY: 0.000132 AC XY: 9AN XY: 68178 show subpopulations
Age Distribution
ClinVar
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at
MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.