7-33146271-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_001348038.3(BBS9):​c.-259C>T variant causes a 5 prime UTR premature start codon gain change. The variant allele was found at a frequency of 0.000013 in 1,613,346 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

BBS9
NM_001348038.3 5_prime_UTR_premature_start_codon_gain

Scores

9
7
2

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 4.68

Publications

4 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: Labcorp Genetics (formerly Invitae), G2P, Genomics England PanelApp
  • BBS9-related ciliopathy
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • Bardet-Biedl syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.793

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001348038.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
BBS9
NM_198428.3
MANE Select
c.19C>Tp.Arg7Cys
missense
Exon 2 of 23NP_940820.1Q3SYG4-1
BBS9
NM_001348038.3
c.-259C>T
5_prime_UTR_premature_start_codon_gain
Exon 2 of 23NP_001334967.1
BBS9
NM_001348039.3
c.-259C>T
5_prime_UTR_premature_start_codon_gain
Exon 2 of 22NP_001334968.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
BBS9
ENST00000242067.11
TSL:1 MANE Select
c.19C>Tp.Arg7Cys
missense
Exon 2 of 23ENSP00000242067.6Q3SYG4-1
BBS9
ENST00000433714.5
TSL:1
n.19C>T
non_coding_transcript_exon
Exon 2 of 24ENSP00000412159.1F8WCG5
BBS9
ENST00000673431.1
c.-117C>T
5_prime_UTR_premature_start_codon_gain
Exon 2 of 21ENSP00000500552.1A0A5F9ZHP5

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
151956
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000189
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000159
AC:
4
AN:
251444
AF XY:
0.0000221
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000116
AC:
17
AN:
1461272
Hom.:
0
Cov.:
30
AF XY:
0.00000963
AC XY:
7
AN XY:
726986
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33470
American (AMR)
AF:
0.00
AC:
0
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26126
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39686
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86244
European-Finnish (FIN)
AF:
0.0000187
AC:
1
AN:
53404
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000117
AC:
13
AN:
1111474
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60380
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.446
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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
AF:
0.0000263
AC:
4
AN:
152074
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74326
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41470
American (AMR)
AF:
0.00
AC:
0
AN:
15280
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5188
South Asian (SAS)
AF:
0.000208
AC:
1
AN:
4810
European-Finnish (FIN)
AF:
0.000189
AC:
2
AN:
10560
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67976
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.458
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000149
Hom.:
0
Bravo
AF:
0.0000113
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
ExAC
AF:
0.0000330
AC:
4
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000119

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Bardet-Biedl syndrome (1)
-
1
-
Bardet-Biedl syndrome 9 (1)
-
1
-
BBS9-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.36
BayesDel_addAF
Pathogenic
0.39
D
BayesDel_noAF
Pathogenic
0.34
CADD
Pathogenic
32
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.19
T
Eigen
Uncertain
0.55
Eigen_PC
Uncertain
0.52
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Pathogenic
0.99
D
M_CAP
Uncertain
0.16
D
MetaRNN
Pathogenic
0.79
D
MetaSVM
Uncertain
0.28
D
MutationAssessor
Uncertain
2.2
M
PhyloP100
4.7
PrimateAI
Pathogenic
0.82
D
PROVEAN
Pathogenic
-7.0
D
REVEL
Pathogenic
0.69
Sift
Pathogenic
0.0
D
Sift4G
Benign
0.099
T
Polyphen
1.0
D
Vest4
0.93
MVP
0.92
MPC
0.45
ClinPred
0.98
D
GERP RS
4.4
PromoterAI
-0.0020
Neutral
Varity_R
0.81
gMVP
0.65
Mutation Taster
=170/130
polymorphism

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

Other links and lift over

dbSNP: rs184994140; hg19: chr7-33185883; COSMIC: COSV54164370; COSMIC: COSV54164370; API