1-243256233-T-TCTC

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PM4_Supporting

The NM_006642.5(SDCCAG8):​c.62_64dupTCC​(p.Leu21dup) variant causes a disruptive inframe insertion, splice region 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 (★). Synonymous variant affecting the same amino acid position (i.e. R22R) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Consequence

SDCCAG8
NM_006642.5 disruptive_inframe_insertion, splice_region

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.38
Variant links:
Genes affected
SDCCAG8 (HGNC:10671): (SHH signaling and ciliogenesis regulator SDCCAG8) This gene encodes a centrosome associated protein. This protein may be involved in organizing the centrosome during interphase and mitosis. Mutations in this gene are associated with retinal-renal ciliopathy. [provided by RefSeq, Oct 2010]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM4
Nonframeshift variant in NON repetitive region in NM_006642.5. Strenght limited to Supporting due to length of the change: 1aa.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SDCCAG8NM_006642.5 linkc.62_64dupTCC p.Leu21dup disruptive_inframe_insertion, splice_region_variant 1/18 ENST00000366541.8 NP_006633.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SDCCAG8ENST00000366541.8 linkc.62_64dupTCC p.Leu21dup disruptive_inframe_insertion, splice_region_variant 1/181 NM_006642.5 ENSP00000355499.3 Q86SQ7-1
SDCCAG8ENST00000490065.5 linkn.202_204dupTCC splice_region_variant, non_coding_transcript_exon_variant 1/54

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
Cov.:
31
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Senior-Loken syndrome 7;C3889474:Bardet-Biedl syndrome 16 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpMar 18, 2022In 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. Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. This variant has not been reported in the literature in individuals affected with SDCCAG8-related conditions. This variant is not present in population databases (gnomAD no frequency). This variant, c.62_64dup, results in the insertion of 1 amino acid(s) of the SDCCAG8 protein (p.Leu21dup), but otherwise preserves the integrity of the reading frame. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr1-243419535; API