rs869025208

Positions:

• chr7-33146353-GAAATGGACAAGGT-G

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PVS1_Moderate PM2 PP5

The NM_198428.3(BBS9):​c.104_112+4delATGGACAAGGTAA​(p.Gly36_Asp38del) variant causes a splice donor, conservative inframe deletion, splice region, intron change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency: Genomes: not found (cov: 32)
• Consequence: BBS9 NM_198428.3 splice_donor, conservative_inframe_deletion, splice_region, intron
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 7.47

Genes affected

BBS9 (HGNC:30000): (Bardet-Biedl syndrome 9) This gene is downregulated by parathyroid hormone in osteoblastic cells, and therefore is thought to be involved in parathyroid hormone action in bones. The exact function of this gene has not yet been determined. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jan 2017]

BBS9 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 5 ACMG points.

• PVS1: Splicing +-2 bp (donor or acceptor) variant, product NOT destroyed by NMD, known LOF gene, truncates exone, which is 0.045795795 fraction of the gene. No cryptic splice site detected. Exon removal is inframe change.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 7-33146353-GAAATGGACAAGGT-G is Pathogenic according to our data. Variant chr7-33146353-GAAATGGACAAGGT-G is described in ClinVar as [Pathogenic]. Clinvar id is 217437.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr7-33146353-GAAATGGACAAGGT-G is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
BBS9	NM_198428.3	c.104_112+4delATGGACAAGGTAA	p.Gly36_Asp38del	splice_donor_variant, conservative_inframe_deletion, splice_region_variant, intron_variant	2/23	ENST00000242067.11	NP_940820.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
BBS9	ENST00000242067.11	c.104_112+4delATGGACAAGGTAA	p.Gly36_Asp38del	splice_donor_variant, conservative_inframe_deletion, splice_region_variant, intron_variant	2/23	1	NM_198428.3	ENSP00000242067.6

Frequencies

GnomAD3 genomes Cov.: 32

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Bardet-Biedl syndrome 9 Pathogenic:1

Pathogenic, no assertion criteria provided

research

Department Of Medical Genetics, Faculty Of Medicine, Ege University

Oct 05, 2015

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Computational scores

Source: dbNSFP v4.3

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs869025208; hg19: chr7-33185965;