rs746484727
Variant summary
Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PP5_Very_Strong
The NM_001386393.1(PANK2):c.734A>G(p.Asn245Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000173 in 1,614,084 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (★★).
Frequency
Consequence
NM_001386393.1 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_pathogenic. Variant got 8 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
PANK2 | NM_001386393.1 | c.734A>G | p.Asn245Ser | missense_variant | Exon 3 of 7 | ENST00000610179.7 | NP_001373322.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152220Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000239 AC: 6AN: 251382Hom.: 0 AF XY: 0.0000221 AC XY: 3AN XY: 135852
GnomAD4 exome AF: 0.0000185 AC: 27AN: 1461864Hom.: 0 Cov.: 32 AF XY: 0.0000206 AC XY: 15AN XY: 727230
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152220Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1AN XY: 74358
ClinVar
Submissions by phenotype
Pigmentary pallidal degeneration Pathogenic:2
This sequence change replaces asparagine, which is neutral and polar, with serine, which is neutral and polar, at codon 355 of the PANK2 protein (p.Asn355Ser). This variant is present in population databases (rs746484727, gnomAD 0.006%). This missense change has been observed in individual(s) with Hallervorden-Spatz syndrome, also known as pantothenate kinase-associated neurodegeneration (PKAN) (PMID: 11479594, 14639680, 15465096, 28845923). ClinVar contains an entry for this variant (Variation ID: 566107). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on PANK2 protein function. In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. -
Variant summary: PANK2 c.1064A>G (p.Asn355Ser) results in a conservative amino acid change located in the actin-like ATPase domain of the encoded protein sequence. Three of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 2.4e-05 in 251382 control chromosomes. c.1064A>G has been reported in the literature in homozygous and compound heterozygous individuals affected with Pantothenate Kinase-Associated Neurodegeneration (e.g., Darling_2017, Hayflick_2003, Molinuevo_2003, Yamashita_2004, Zhou_2001). These data indicate that the variant is likely to be associated with disease. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publications have been ascertained in the context of this evaluation (PMID: 28845923, 12510040, 14639680, 15465096, 11479594). ClinVar contains an entry for this variant (Variation ID: 566107). Based on the evidence outlined above, the variant was classified as likely pathogenic. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at