6-31959292-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_006929.5(SKIC2):​c.23-5C>T variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,458,244 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

SKIC2
NM_006929.5 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.0009024
2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -1.26
Variant links:
Genes affected
SKIC2 (HGNC:10898): (SKI2 subunit of superkiller complex) DEAD box proteins, characterized by the conserved motif Asp-Glu-Ala-Asp (DEAD), are putative RNA helicases. They are implicated in a number of cellular processes involving alteration of RNA secondary structure such as translation initiation, nuclear and mitochondrial splicing, and ribosome and spliceosome assembly. Based on their distribution patterns, some members of this family are believed to be involved in embryogenesis, spermatogenesis, and cellular growth and division. This gene encodes a DEAD box protein, which is a human homologue of yeast SKI2 and may be involved in antiviral activity by blocking translation of poly(A) deficient mRNAs. This gene is located in the class III region of the major histocompatibility complex. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.62).
BP6
Variant 6-31959292-C-T is Benign according to our data. Variant chr6-31959292-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 2997635.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SKIC2NM_006929.5 linkuse as main transcriptc.23-5C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000375394.7 NP_008860.4
SKIC2XM_011514815.4 linkuse as main transcriptc.23-5C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant XP_011513117.1
SKIC2XM_047419259.1 linkuse as main transcriptc.23-5C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant XP_047275215.1
SKIC2XM_047419260.1 linkuse as main transcriptc.23-5C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant XP_047275216.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SKIC2ENST00000375394.7 linkuse as main transcriptc.23-5C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_006929.5 ENSP00000364543 P1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1458244
Hom.:
0
Cov.:
31
AF XY:
0.00000414
AC XY:
3
AN XY:
725042
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000361
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
Alfa
AF:
0.0000370
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpOct 04, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.62
CADD
Benign
1.0
DANN
Benign
0.94

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00090
dbscSNV1_RF
Benign
0.022
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1772325095; hg19: chr6-31927069; API