7-33177472-C-T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_StrongBP6_Moderate

The NM_198428.3(BBS9):c.329-6C>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. 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: 𝑓 0.00054 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0013 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

BBS9
NM_198428.3 splice_region, intron

Scores

Splicing: ADA: 0.00009510

Clinical Significance

Likely benign criteria provided, single submitter B:4

Conservation

PhyloP100: -0.156

Publications

1 publications found

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]

BBS9 Gene-Disease associations (from GenCC):

Bardet-Biedl syndrome 9
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
ciliopathy
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
Bardet-Biedl syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

BBS9 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.75).

BP6

Variant 7-33177472-C-T is Benign according to our data. Variant chr7-33177472-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 462971.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BBS9	NM_198428.3 link	c.329-6C>T		splice_region_variant, intron_variant	Intron 4 of 22	ENST00000242067.11	NP_940820.1	Q3SYG4-1A0A090N8P4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BBS9	ENST00000242067.11 link	c.329-6C>T		splice_region_variant, intron_variant	Intron 4 of 22	1	NM_198428.3	ENSP00000242067.6		Q3SYG4-1

Frequencies

GnomAD3 genomes

AF:

0.000541

AC:

AN:

140414

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000263

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000704

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000223

Gnomad FIN

AF:

0.00352

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000545

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00445

AC:

941

AN:

211698

AF XY:

0.00481

show subpopulations

Gnomad AFR exome

AF:

0.00199

Gnomad AMR exome

AF:

0.00583

Gnomad ASJ exome

AF:

0.00321

Gnomad EAS exome

AF:

0.00368

Gnomad FIN exome

AF:

0.00107

Gnomad NFE exome

AF:

0.00293

Gnomad OTH exome

AF:

0.00548

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.00131

AC:

1736

AN:

1321058

Hom.:

Cov.:

AF XY:

0.00131

AC XY:

867

AN XY:

660694

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00519

AC:

150

AN:

28888

American (AMR)

AF:

0.0144

AC:

524

AN:

36400

Ashkenazi Jewish (ASJ)

AF:

0.00242

AC:

AN:

23948

East Asian (EAS)

AF:

0.000428

AC:

AN:

37370

South Asian (SAS)

AF:

0.00442

AC:

334

AN:

75564

European-Finnish (FIN)

AF:

0.000555

AC:

AN:

48624

Middle Eastern (MID)

AF:

0.00302

AC:

AN:

5298

European-Non Finnish (NFE)

AF:

0.000524

AC:

529

AN:

1010244

Other (OTH)

AF:

0.00150

AC:

AN:

54722

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.271

Heterozygous variant carriers

172

344

516

688

860

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.000541

AC:

AN:

140514

Hom.:

Cov.:

AF XY:

0.000485

AC XY:

AN XY:

67980

show subpopulations

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.000262

AC:

AN:

38158

American (AMR)

AF:

0.0000703

AC:

AN:

14220

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3348

East Asian (EAS)

AF:

0.00

AC:

AN:

4808

South Asian (SAS)

AF:

0.000224

AC:

AN:

4464

European-Finnish (FIN)

AF:

0.00352

AC:

AN:

8250

Middle Eastern (MID)

AF:

0.00

AC:

AN:

268

European-Non Finnish (NFE)

AF:

0.000545

AC:

AN:

64190

Other (OTH)

AF:

0.00

AC:

AN:

1970

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.265

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0139

Hom.:

ClinVar

Significance: Likely benign

Submissions summary: Benign:4

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:2

Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

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

- -

BBS9-related disorder

Benign:1

Jul 29, 2022

PreventionGenetics, part of Exact Sciences

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

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

Bardet-Biedl syndrome

Benign:1

Dec 28, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely 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

-0.75

CADD

Benign

2.4

(source)

DANN

Benign

0.71

PhyloP100

-0.16

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000095

dbscSNV1_RF

Benign

0.010

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over