rs191207351
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Variant summary
Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2
The ENST00000245157.11(BBS2):c.612+42T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00954 in 1,595,852 control chromosomes in the GnomAD database, including 99 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Genomes: 𝑓 0.0069 ( 8 hom., cov: 32)
Exomes 𝑓: 0.0098 ( 91 hom. )
Consequence
BBS2
ENST00000245157.11 intron
ENST00000245157.11 intron
Scores
2
Clinical Significance
Conservation
PhyloP100: 0.00300
Genes affected
BBS2 (HGNC:967): (Bardet-Biedl syndrome 2) This gene is a member of the Bardet-Biedl syndrome (BBS) gene family. Bardet-Biedl syndrome is an autosomal recessive disorder characterized by severe pigmentary retinopathy, obesity, polydactyly, renal malformation and cognitive disability. The proteins encoded by BBS gene family members are structurally diverse and the similar phenotypes exhibited by mutations in BBS gene family members is likely due to their shared roles in cilia formation and function. Many BBS proteins localize to the basal bodies, ciliary axonemes, and pericentriolar regions of cells. BBS proteins may also be involved in intracellular trafficking via microtubule-related transport. The protein encoded by this gene forms a multiprotein BBSome complex with seven other BBS proteins.[provided by RefSeq, Oct 2014]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -20 ACMG points.
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.89).
BP6
Variant 16-56509915-A-G is Benign according to our data. Variant chr16-56509915-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 261982.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00693 (1054/152178) while in subpopulation NFE AF= 0.0116 (789/67998). AF 95% confidence interval is 0.0109. There are 8 homozygotes in gnomad4. There are 495 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 8 AR gene
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
BBS2 | NM_031885.5 | c.612+42T>C | intron_variant | ENST00000245157.11 | NP_114091.4 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
BBS2 | ENST00000245157.11 | c.612+42T>C | intron_variant | 1 | NM_031885.5 | ENSP00000245157 | P1 |
Frequencies
GnomAD3 genomes AF: 0.00693 AC: 1054AN: 152060Hom.: 8 Cov.: 32
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GnomAD3 exomes AF: 0.00698 AC: 1755AN: 251296Hom.: 10 AF XY: 0.00713 AC XY: 969AN XY: 135838
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GnomAD4 exome AF: 0.00981 AC: 14168AN: 1443674Hom.: 91 Cov.: 26 AF XY: 0.00973 AC XY: 7001AN XY: 719398
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GnomAD4 genome AF: 0.00693 AC: 1054AN: 152178Hom.: 8 Cov.: 32 AF XY: 0.00665 AC XY: 495AN XY: 74384
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ClinVar
Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
not specified Benign:1
Likely benign, criteria provided, single submitter | clinical testing | PreventionGenetics, part of Exact Sciences | - | - - |
not provided Benign:1
Likely benign, criteria provided, single submitter | not provided | Breakthrough Genomics, Breakthrough Genomics | - | - - |
Computational scores
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BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at