chr14-50743453-G-A
Variant summary
Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate
The NM_020921.4(NIN):c.5264C>T(p.Ala1755Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000223 in 1,613,268 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. 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. A1755T) has been classified as Uncertain significance.
Frequency
Consequence
NM_020921.4 missense
Scores
Clinical Significance
Conservation
Publications
- Seckel syndrome 7Inheritance: AR, Unknown Classification: LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
 
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ACMG classification
Our verdict: Uncertain_significance. The variant received 0 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes   AF:  0.0000197  AC: 3AN: 152152Hom.:  0  Cov.: 32 show subpopulations 
GnomAD2 exomes  AF:  0.0000159  AC: 4AN: 251426 AF XY:  0.0000147   show subpopulations 
GnomAD4 exome  AF:  0.0000226  AC: 33AN: 1461116Hom.:  0  Cov.: 30 AF XY:  0.0000234  AC XY: 17AN XY: 726908 show subpopulations 
Age Distribution
GnomAD4 genome   AF:  0.0000197  AC: 3AN: 152152Hom.:  0  Cov.: 32 AF XY:  0.0000404  AC XY: 3AN XY: 74334 show subpopulations 
ClinVar
Submissions by phenotype
not specified    Uncertain:1 
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not provided    Uncertain:1 
This sequence change replaces alanine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 1755 of the NIN protein (p.Ala1755Val). This variant is present in population databases (rs758555048, gnomAD 0.004%). This variant has not been reported in the literature in individuals affected with NIN-related conditions. ClinVar contains an entry for this variant (Variation ID: 211616). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. 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. -
Computational scores
Source: 
Splicing
 Find out detailed SpliceAI scores and Pangolin per-transcript scores at