rs1238632042

Variant summary

Our verdict is Likely pathogenic. The variant received 9 ACMG points: 9P and 0B. PM2PM5PP2PP3_ModeratePP5_Moderate

The NM_152384.3(BBS5):​c.412C>T​(p.Arg138Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000062 in 1,611,848 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R138H) has been classified as Likely pathogenic.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

BBS5
NM_152384.3 missense

Scores

14
3

Clinical Significance

Likely pathogenic criteria provided, single submitter P:2

Conservation

PhyloP100: 4.81

Publications

4 publications found
Variant links:
Genes affected
BBS5 (HGNC:970): (Bardet-Biedl syndrome 5) This gene encodes a protein that has been directly linked to Bardet-Biedl syndrome. The primary features of this syndrome include retinal dystrophy, obesity, polydactyly, renal abnormalities and learning disabilities. Experimentation in non-human eukaryotes suggests that this gene is expressed in ciliated cells and that it is required for the formation of cilia. Alternate transcriptional splice variants have been observed but have not been fully characterized. [provided by RefSeq, Jul 2008]
BBS5 Gene-Disease associations (from GenCC):
  • Bardet-Biedl syndrome 5
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Genomics England PanelApp, Ambry Genetics, Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine, G2P
  • BBS5-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: Likely_pathogenic. The variant received 9 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr2-169492900-G-A is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 68066.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
PP2
Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 7 curated pathogenic missense variants (we use a threshold of 10). The gene has 1 curated benign missense variants. Gene score misZ: 0.85025 (below the threshold of 3.09). Trascript score misZ: 1.0056 (below the threshold of 3.09). GenCC associations: The gene is linked to Bardet-Biedl syndrome 5, BBS5-related ciliopathy, Bardet-Biedl syndrome.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.931
PP5
Variant 2-169492899-C-T is Pathogenic according to our data. Variant chr2-169492899-C-T is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 437993.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_152384.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
BBS5
NM_152384.3
MANE Select
c.412C>Tp.Arg138Cys
missense
Exon 6 of 12NP_689597.1A0A0S2Z626

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
BBS5
ENST00000295240.8
TSL:1 MANE Select
c.412C>Tp.Arg138Cys
missense
Exon 6 of 12ENSP00000295240.3Q8N3I7-1
ENSG00000251569
ENST00000513963.1
TSL:2
c.412C>Tp.Arg138Cys
missense
Exon 6 of 16ENSP00000424363.1E9PBE3
BBS5
ENST00000392663.6
TSL:1
c.412C>Tp.Arg138Cys
missense
Exon 6 of 11ENSP00000376431.2Q8N3I7-2

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
151928
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
250970
AF XY:
0.00000737
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
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:
0.00000479
AC:
7
AN:
1459920
Hom.:
0
Cov.:
30
AF XY:
0.00000826
AC XY:
6
AN XY:
726386
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33438
American (AMR)
AF:
0.0000224
AC:
1
AN:
44704
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26100
East Asian (EAS)
AF:
0.0000758
AC:
3
AN:
39572
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86184
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53396
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5506
European-Non Finnish (NFE)
AF:
0.00000270
AC:
3
AN:
1110718
Other (OTH)
AF:
0.00
AC:
0
AN:
60302
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.496
Heterozygous variant carriers
0
1
2
2
3
4
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:
0.0000197
AC:
3
AN:
151928
Hom.:
0
Cov.:
32
AF XY:
0.0000270
AC XY:
2
AN XY:
74194
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41346
American (AMR)
AF:
0.000131
AC:
2
AN:
15238
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10558
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
67988
Other (OTH)
AF:
0.00
AC:
0
AN:
2086
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

ClinVar submissions
Significance:Likely pathogenic
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
1
-
-
BBS5-related disorder (1)
1
-
-
Cone dystrophy (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.96
BayesDel_addAF
Pathogenic
0.24
D
BayesDel_noAF
Pathogenic
0.18
CADD
Pathogenic
29
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.74
D
Eigen
Pathogenic
0.86
Eigen_PC
Pathogenic
0.81
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Pathogenic
0.99
D
M_CAP
Uncertain
0.17
D
MetaRNN
Pathogenic
0.93
D
MetaSVM
Pathogenic
0.84
D
MutationAssessor
Pathogenic
3.0
M
PhyloP100
4.8
PROVEAN
Pathogenic
-7.7
D
REVEL
Pathogenic
0.78
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.90
MutPred
0.83
Gain of catalytic residue at M136 (P = 0.005)
MVP
0.98
MPC
1.3
ClinPred
1.0
D
GERP RS
5.6
Varity_R
0.86
gMVP
0.83
Mutation Taster
=0/100
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.29
Details are displayed if max score is > 0.2
DS_AL_spliceai
0.29
Position offset: -25

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs1238632042; hg19: chr2-170349409; COSMIC: COSV54752696; API
For research and educational, non-commercial use only. Not for clinical or diagnostic use. GeneBe does not provide medical advice. Data use for AI modeling is prohibited: if used, the cost is $0.001 per byte of downloaded uncompressed data.