15-72737433-T-C

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_033028.5(BBS4):​c.1451-45T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.11 in 1,501,516 control chromosomes in the GnomAD database, including 10,093 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.085 ( 668 hom., cov: 32)
Exomes 𝑓: 0.11 ( 9425 hom. )

Consequence

BBS4
NM_033028.5 intron

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 0.127
Variant links:
Genes affected
BBS4 (HGNC:969): (Bardet-Biedl syndrome 4) This gene is a member of the Bardet-Biedl syndrome (BBS) gene family. Bardet-Biedl syndrome is an autosomal recessive disorder characterized by severe pigmentary retinopathy, obesity, polydactyly, renal malformation and cognitive disability. The proteins encoded by BBS gene family members are structurally diverse. The similar phenotypes exhibited by mutations in BBS gene family members are likely due to the protein's shared roles in cilia formation and function. Many BBS proteins localize to the basal bodies, ciliary axonemes, and pericentriolar regions of cells. BBS proteins may also be involved in intracellular trafficking via microtubule-related transport. The protein encoded by this gene has sequence similarity to O-linked N-acetylglucosamine (O-GlcNAc) transferases in plants and archaebacteria and in human forms a multi-protein "BBSome" complex with seven other BBS proteins. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Mar 2016]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.74).
BP6
Variant 15-72737433-T-C is Benign according to our data. Variant chr15-72737433-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 21732.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.116 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
BBS4NM_033028.5 linkuse as main transcriptc.1451-45T>C intron_variant ENST00000268057.9 NP_149017.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
BBS4ENST00000268057.9 linkuse as main transcriptc.1451-45T>C intron_variant 1 NM_033028.5 ENSP00000268057 P1Q96RK4-1

Frequencies

GnomAD3 genomes
AF:
0.0849
AC:
12916
AN:
152142
Hom.:
668
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0539
Gnomad AMI
AF:
0.112
Gnomad AMR
AF:
0.0611
Gnomad ASJ
AF:
0.109
Gnomad EAS
AF:
0.000577
Gnomad SAS
AF:
0.0820
Gnomad FIN
AF:
0.0603
Gnomad MID
AF:
0.0728
Gnomad NFE
AF:
0.118
Gnomad OTH
AF:
0.0861
GnomAD3 exomes
AF:
0.0813
AC:
16024
AN:
196986
Hom.:
741
AF XY:
0.0842
AC XY:
8815
AN XY:
104696
show subpopulations
Gnomad AFR exome
AF:
0.0505
Gnomad AMR exome
AF:
0.0488
Gnomad ASJ exome
AF:
0.105
Gnomad EAS exome
AF:
0.000258
Gnomad SAS exome
AF:
0.0846
Gnomad FIN exome
AF:
0.0547
Gnomad NFE exome
AF:
0.115
Gnomad OTH exome
AF:
0.0815
GnomAD4 exome
AF:
0.113
AC:
152567
AN:
1349256
Hom.:
9425
Cov.:
20
AF XY:
0.112
AC XY:
75334
AN XY:
671982
show subpopulations
Gnomad4 AFR exome
AF:
0.0533
Gnomad4 AMR exome
AF:
0.0506
Gnomad4 ASJ exome
AF:
0.106
Gnomad4 EAS exome
AF:
0.000157
Gnomad4 SAS exome
AF:
0.0897
Gnomad4 FIN exome
AF:
0.0549
Gnomad4 NFE exome
AF:
0.127
Gnomad4 OTH exome
AF:
0.107
GnomAD4 genome
AF:
0.0849
AC:
12924
AN:
152260
Hom.:
668
Cov.:
32
AF XY:
0.0810
AC XY:
6027
AN XY:
74452
show subpopulations
Gnomad4 AFR
AF:
0.0541
Gnomad4 AMR
AF:
0.0610
Gnomad4 ASJ
AF:
0.109
Gnomad4 EAS
AF:
0.000579
Gnomad4 SAS
AF:
0.0810
Gnomad4 FIN
AF:
0.0603
Gnomad4 NFE
AF:
0.118
Gnomad4 OTH
AF:
0.0852
Alfa
AF:
0.0977
Hom.:
126
Bravo
AF:
0.0830
Asia WGS
AF:
0.0360
AC:
124
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
not provided Benign:1
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Bardet-Biedl syndrome Benign:1
Benign, no assertion criteria providedcurationGeneReviewsOct 13, 2009- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.74
CADD
Benign
14
DANN
Benign
0.87

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: rs75847960; hg19: chr15-73029774; API