Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4
The NM_001114394.3(TENT2):c.824G>T(p.Cys275Phe) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.000000707 in 1,414,550 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).
TENT2 (HGNC:26776): (terminal nucleotidyltransferase 2) Enables 5'-3' RNA polymerase activity and polynucleotide adenylyltransferase activity. Involved in RNA metabolic process and negative regulation of RNA catabolic process. Predicted to be located in nucleus. Predicted to be part of nuclear RNA-directed RNA polymerase complex. Predicted to be active in cytosol. [provided by Alliance of Genome Resources, Apr 2022]
Uncertain significance, criteria provided, single submitter
clinical testing
Ambry Genetics
Feb 07, 2023
The c.824G>T (p.C275F) alteration is located in exon 9 (coding exon 8) of the PAPD4 gene. This alteration results from a G to T substitution at nucleotide position 824, causing the cysteine (C) at amino acid position 275 to be replaced by a phenylalanine (F). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -