rs148654647

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBS1BS2_Supporting

The ENST00000434373.3(BBS9):​c.1339C>A​(p.Leu447Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000403 in 1,592,062 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 5/5 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0022 ( 2 hom., cov: 32)
Exomes 𝑓: 0.00021 ( 1 hom. )

Consequence

BBS9
ENST00000434373.3 missense

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: 0.379
Variant links:
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.8).
BP6
Variant 7-33604984-C-A is Benign according to our data. Variant chr7-33604984-C-A is described in ClinVar as [Likely_benign]. Clinvar id is 263127.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr7-33604984-C-A is described in Lovd as [Likely_benign]. Variant chr7-33604984-C-A is described in Lovd as [Benign].
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00222 (338/152300) while in subpopulation AFR AF= 0.00774 (322/41578). AF 95% confidence interval is 0.00705. There are 2 homozygotes in gnomad4. There are 158 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 2 AR geneVariant has number of homozygotes lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
BBS9NM_198428.3 linkc.2632+9C>A intron_variant Intron 22 of 22 ENST00000242067.11 NP_940820.1 Q3SYG4-1A0A090N8P4

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
BBS9ENST00000242067.11 linkc.2632+9C>A intron_variant Intron 22 of 22 1 NM_198428.3 ENSP00000242067.6 Q3SYG4-1

Frequencies

GnomAD3 genomes
AF:
0.00222
AC:
338
AN:
152182
Hom.:
2
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00777
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000524
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00239
GnomAD3 exomes
AF:
0.000625
AC:
156
AN:
249592
Hom.:
0
AF XY:
0.000489
AC XY:
66
AN XY:
134870
show subpopulations
Gnomad AFR exome
AF:
0.00871
Gnomad AMR exome
AF:
0.000407
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000889
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000211
AC:
304
AN:
1439762
Hom.:
1
Cov.:
29
AF XY:
0.000173
AC XY:
124
AN XY:
717764
show subpopulations
Gnomad4 AFR exome
AF:
0.00797
Gnomad4 AMR exome
AF:
0.000336
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000117
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000458
Gnomad4 OTH exome
AF:
0.000318
GnomAD4 genome
AF:
0.00222
AC:
338
AN:
152300
Hom.:
2
Cov.:
32
AF XY:
0.00212
AC XY:
158
AN XY:
74470
show subpopulations
Gnomad4 AFR
AF:
0.00774
Gnomad4 AMR
AF:
0.000523
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00236
Alfa
AF:
0.000972
Hom.:
0
Bravo
AF:
0.00237

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:7
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Bardet-Biedl syndrome 1 Benign:2
Dec 15, 2014
Genome Diagnostics Laboratory, University Medical Center Utrecht
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Apr 19, 2017
Genome Diagnostics Laboratory, Amsterdam University Medical Center
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

not specified Benign:1
Aug 26, 2019
Genetic Services Laboratory, University of Chicago
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Bardet-Biedl syndrome 9 Benign:1
Jul 29, 2021
Fulgent Genetics, Fulgent Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

BBS9-related disorder Benign:1
Oct 04, 2019
PreventionGenetics, part of Exact Sciences
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

not provided Benign:1
-
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Bardet-Biedl syndrome Benign:1
Jan 23, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.80
CADD
Benign
7.2
DANN
Benign
0.86

Splicing

Name
Calibrated prediction
Score
Prediction
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: rs148654647; hg19: chr7-33644596; API