chrX-48904529-TCACCCTACCAGGAAGGGTTCACGTGACACCCAGCTCTAGTCCCACACCCCTCCAGAAGTCTCAGTGACCTGGGAGAAAAGACCATCTCCCAAACCCAGAGGAGCCAGGCCCCGGAGGGTGGCGACTTGGGTCCTGCAGATGCCCAACACCCTCCACCCCAGTCCCCCTCCCTTGTGTCCCCCCATTGCTGCCAGCCCTCACTTCACCAGCACTGACTTTGGCAGAAAGGGCTCCGTGATGAGGTCTCCACGGTGGGAAGACAGCTGCGGTGGTGGTGGCTGCCC-CCTCCCG
Variant summary
Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PVS1_StrongPM2
The NM_005660.3(SLC35A2):c.1096_1163+217delinsCGGGAGG variant causes a splice donor, splice donor 5th base, coding sequence, intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: not found (cov: 22)
Consequence
SLC35A2
NM_005660.3 splice_donor, splice_donor_5th_base, coding_sequence, intron
NM_005660.3 splice_donor, splice_donor_5th_base, coding_sequence, intron
Scores
Not classified
Clinical Significance
Conservation
PhyloP100: 1.10
Genes affected
SLC35A2 (HGNC:11022): (solute carrier family 35 member A2) This gene encodes a member of the nucleotide-sugar transporter family. The encoded protein is a multi-pass membrane protein. It transports UDP-galactose from the cytosol into Golgi vesicles, where it serves as a glycosyl donor for the generation of glycans. Mutations in this gene cause congenital disorder of glycosylation type IIm (CDG2M). Multiple alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Oct 2014]
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ACMG classification
Classification made for transcript
Verdict is Likely_pathogenic. Variant got 6 ACMG points.
PVS1
?
Splicing variant, NOT destroyed by nmd, known LOF gene, truncates 0.5398824517212426 fraction of the gene. No cryptic splice site detected. Exon removal results in frameshift change.
PM2
?
Very rare variant in population databases, with high coverage;
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
SLC35A2 | NM_005660.3 | c.1096_1163+217delinsCGGGAGG | splice_donor_variant, splice_donor_5th_base_variant, coding_sequence_variant, intron_variant | 4/5 | ENST00000247138.11 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
SLC35A2 | ENST00000247138.11 | c.1096_1163+217delinsCGGGAGG | splice_donor_variant, splice_donor_5th_base_variant, coding_sequence_variant, intron_variant | 4/5 | 1 | NM_005660.3 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 22
GnomAD3 genomes
?
Cov.:
22
We have no GnomAD4 exomes data on this position. Probably position not covered by the project.
GnomAD4 genome ? Cov.: 22
GnomAD4 genome
?
Cov.:
22
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | Dec 04, 2019 | Not observed in large population cohorts (Lek et al., 2016); Frameshift variant predicted to result in protein truncation as the last 28 amino acids are lost and replaced with 10 incorrect amino acids, although loss-of-function variants have not been reported downstream of this position in the protein; Has not been previously published as pathogenic or benign to our knowledge - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at
Publications
No publications associated with this variant yet.