rs763802548
Variant summary
Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4BS2
The NM_001166108.2(PALLD):c.2267G>C(p.Ser756Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000137 in 1,611,480 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts 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. S756G) has been classified as Uncertain significance.
Frequency
Consequence
NM_001166108.2 missense
Scores
Clinical Significance
Conservation
Publications
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ACMG classification
Our verdict: Likely_benign. The variant received -5 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152196Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000518 AC: 13AN: 251150 AF XY: 0.0000442 show subpopulations
GnomAD4 exome AF: 0.0000144 AC: 21AN: 1459284Hom.: 0 Cov.: 30 AF XY: 0.0000179 AC XY: 13AN XY: 726164 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152196Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74348 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not specified Uncertain:1
The p.S252T variant (also known as c.755G>C), located in coding exon 4 of the PALLD gene, results from a G to C substitution at nucleotide position 755. The serine at codon 252 is replaced by threonine, an amino acid with similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. The evidence for this gene-disease relationship is limited; therefore, the clinical significance of this alteration is unclear. -
Pancreatic adenocarcinoma Uncertain:1
This sequence change replaces serine, which is neutral and polar, with threonine, which is neutral and polar, at codon 252 of the PALLD protein (p.Ser252Thr). This variant is present in population databases (rs763802548, gnomAD 0.08%), and has an allele count higher than expected for a pathogenic variant. This variant has not been reported in the literature in individuals affected with PALLD-related conditions. ClinVar contains an entry for this variant (Variation ID: 542930). 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