Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate
The NM_001130965.3(SUN1):c.23T>A(p.Met8Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,613,438 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M8T) has been classified as Likely benign.
SUN1 (HGNC:18587): (Sad1 and UNC84 domain containing 1) This gene is a member of the unc-84 homolog family and encodes a nuclear envelope protein with an Unc84 (SUN) domain. The protein is involved in nuclear anchorage and migration. Alternatively spliced transcript variants have been described. [provided by RefSeq, Jan 2019]
Verdict is Uncertain_significance. Variant got 0 ACMG points.
PM2
?
PM2 - Absent from controls (or at extremely low frequency if recessive) in Exome Sequencing Project, 1000 Genomes Project, or Exome Aggregation Consortium
Very rare variant in population databases, with high coverage;
BP4
?
BP4 - Multiple lines of computational evidence suggest no impact on gene or gene product (conservation, evolutionary, splicing impact, etc.)
Computational evidence support a benign effect (MetaRNN=0.19317248).
.;Gain of ubiquitination at M8 (P = 0.0289);Gain of ubiquitination at M8 (P = 0.0289);Gain of ubiquitination at M8 (P = 0.0289);Gain of ubiquitination at M8 (P = 0.0289);Gain of ubiquitination at M8 (P = 0.0289);Gain of ubiquitination at M8 (P = 0.0289);Gain of ubiquitination at M8 (P = 0.0289);Gain of ubiquitination at M8 (P = 0.0289);Gain of ubiquitination at M8 (P = 0.0289);Gain of ubiquitination at M8 (P = 0.0289);