Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate
The NM_001385562.1(ARPP21):c.242G>T(p.Gly81Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000131 in 1,528,880 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.
ARPP21 (HGNC:16968): (cAMP regulated phosphoprotein 21) This gene encodes a cAMP-regulated phosphoprotein. The encoded protein is enriched in the caudate nucleus and cerebellar cortex. A similar protein in mouse may be involved in regulating the effects of dopamine in the basal ganglia. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Jun 2012]
Uncertain significance, criteria provided, single submitter
clinical testing
Ambry Genetics
Oct 21, 2024
The c.242G>T (p.G81V) alteration is located in exon 5 (coding exon 3) of the ARPP21 gene. This alteration results from a G to T substitution at nucleotide position 242, causing the glycine (G) at amino acid position 81 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Gain of glycosylation at S83 (P = 0.0064);Gain of glycosylation at S83 (P = 0.0064);Gain of glycosylation at S83 (P = 0.0064);Gain of glycosylation at S83 (P = 0.0064);Gain of glycosylation at S83 (P = 0.0064);Gain of glycosylation at S83 (P = 0.0064);Gain of glycosylation at S83 (P = 0.0064);Gain of glycosylation at S83 (P = 0.0064);Gain of glycosylation at S83 (P = 0.0064);Gain of glycosylation at S83 (P = 0.0064);Gain of glycosylation at S83 (P = 0.0064);Gain of glycosylation at S83 (P = 0.0064);Gain of glycosylation at S83 (P = 0.0064);Gain of glycosylation at S83 (P = 0.0064);Gain of glycosylation at S83 (P = 0.0064);Gain of glycosylation at S83 (P = 0.0064);Gain of glycosylation at S83 (P = 0.0064);Gain of glycosylation at S83 (P = 0.0064);