rs138011813

Variant summary

Our verdict is Pathogenic. The variant received 10 ACMG points: 10P and 0B. PP3_ModeratePP5_Very_Strong

The NM_152618.3(BBS12):​c.1502C>T​(p.Thr501Met) variant causes a missense change. The variant allele was found at a frequency of 0.0000322 in 1,614,176 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 Likely pathogenic (★★). Synonymous variant affecting the same amino acid position (i.e. T501T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

BBS12
NM_152618.3 missense

Scores

9
7
2

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:11

Conservation

PhyloP100: 7.09

Publications

7 publications found
Variant links:
Genes affected
BBS12 (HGNC:26648): (Bardet-Biedl syndrome 12) The protein encoded by this gene is part of a complex that is involved in membrane trafficking. The encoded protein is a molecular chaperone that aids in protein folding upon ATP hydrolysis. This protein also plays a role in adipocyte differentiation. Defects in this gene are a cause of Bardet-Biedl syndrome type 12. Two transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, May 2010]
BBS12 Gene-Disease associations (from GenCC):
  • Bardet-Biedl syndrome 12
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Myriad Women’s Health, G2P, Ambry Genetics
  • BBS12-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: Pathogenic. The variant received 10 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.893
PP5
Variant 4-122743394-C-T is Pathogenic according to our data. Variant chr4-122743394-C-T is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 585190.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_152618.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
BBS12
NM_152618.3
MANE Select
c.1502C>Tp.Thr501Met
missense
Exon 2 of 2NP_689831.2
BBS12
NM_001178007.2
c.1502C>Tp.Thr501Met
missense
Exon 3 of 3NP_001171478.1Q6ZW61

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
BBS12
ENST00000314218.8
TSL:1 MANE Select
c.1502C>Tp.Thr501Met
missense
Exon 2 of 2ENSP00000319062.3Q6ZW61
BBS12
ENST00000542236.5
TSL:2
c.1502C>Tp.Thr501Met
missense
Exon 3 of 3ENSP00000438273.1Q6ZW61

Frequencies

GnomAD3 genomes
AF:
0.000197
AC:
30
AN:
152166
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000652
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000358
AC:
9
AN:
251444
AF XY:
0.0000294
show subpopulations
Gnomad AFR exome
AF:
0.000554
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000150
AC:
22
AN:
1461892
Hom.:
0
Cov.:
35
AF XY:
0.0000138
AC XY:
10
AN XY:
727248
show subpopulations
African (AFR)
AF:
0.000448
AC:
15
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.0000383
AC:
1
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000360
AC:
4
AN:
1112012
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
2
4
7
9
11
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:
0.000197
AC:
30
AN:
152284
Hom.:
0
Cov.:
33
AF XY:
0.000215
AC XY:
16
AN XY:
74468
show subpopulations
African (AFR)
AF:
0.000650
AC:
27
AN:
41550
American (AMR)
AF:
0.0000653
AC:
1
AN:
15310
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68016
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.493
Heterozygous variant carriers
0
2
4
5
7
9
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:
0.000140
Hom.:
0
Bravo
AF:
0.000189
ESP6500AA
AF:
0.000454
AC:
2
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000247
AC:
3
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

ClinVar submissions
Significance:Pathogenic/Likely pathogenic
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
5
-
-
Bardet-Biedl syndrome 12 (5)
3
-
-
Bardet-Biedl syndrome (3)
1
-
-
BBS12-related disorder (1)
1
-
-
not provided (1)
1
-
-
Retinal dystrophy (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.31
BayesDel_addAF
Pathogenic
0.17
D
BayesDel_noAF
Pathogenic
0.36
CADD
Uncertain
26
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.72
D
Eigen
Pathogenic
0.76
Eigen_PC
Pathogenic
0.71
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Benign
0.83
T
M_CAP
Uncertain
0.097
D
MetaRNN
Pathogenic
0.89
D
MetaSVM
Uncertain
0.54
D
MutationAssessor
Uncertain
2.8
M
PhyloP100
7.1
PrimateAI
Uncertain
0.58
T
PROVEAN
Uncertain
-4.1
D
REVEL
Pathogenic
0.83
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.97
MVP
0.93
MPC
0.47
ClinPred
0.85
D
GERP RS
5.7
Varity_R
0.55
gMVP
0.85
Mutation Taster
=12/88
disease causing (ClinVar)

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: rs138011813; hg19: chr4-123664549; COSMIC: COSV58561231; COSMIC: COSV58561231; API