chr4-122743508-G-T

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_152618.3(BBS12):​c.1616G>T​(p.Gly539Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,894 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: not found (cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

BBS12
NM_152618.3 missense

Scores

7
9
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.37
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.983

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
BBS12NM_152618.3 linkuse as main transcriptc.1616G>T p.Gly539Val missense_variant 2/2 ENST00000314218.8 NP_689831.2
BBS12NM_001178007.2 linkuse as main transcriptc.1616G>T p.Gly539Val missense_variant 3/3 NP_001171478.1
BBS12XM_011531680.3 linkuse as main transcriptc.1616G>T p.Gly539Val missense_variant 2/2 XP_011529982.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
BBS12ENST00000314218.8 linkuse as main transcriptc.1616G>T p.Gly539Val missense_variant 2/21 NM_152618.3 ENSP00000319062 P1
BBS12ENST00000542236.5 linkuse as main transcriptc.1616G>T p.Gly539Val missense_variant 3/32 ENSP00000438273 P1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000795
AC:
2
AN:
251446
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135896
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461894
Hom.:
0
Cov.:
34
AF XY:
0.00000275
AC XY:
2
AN XY:
727248
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Bardet-Biedl syndrome 12 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingCounsylDec 08, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.71
BayesDel_addAF
Pathogenic
0.23
D
BayesDel_noAF
Pathogenic
0.27
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.72
D;D
Eigen
Pathogenic
0.69
Eigen_PC
Uncertain
0.66
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Benign
0.78
T;.
M_CAP
Uncertain
0.26
D
MetaRNN
Pathogenic
0.98
D;D
MetaSVM
Uncertain
0.59
D
MutationAssessor
Uncertain
2.7
M;M
MutationTaster
Benign
1.0
D;D
PrimateAI
Benign
0.39
T
PROVEAN
Pathogenic
-4.7
D;D
REVEL
Pathogenic
0.84
Sift
Uncertain
0.0050
D;D
Sift4G
Uncertain
0.011
D;D
Polyphen
1.0
D;D
Vest4
0.77
MutPred
0.91
Gain of sheet (P = 0.0827);Gain of sheet (P = 0.0827);
MVP
0.94
MPC
0.52
ClinPred
0.91
D
GERP RS
4.8
Varity_R
0.69
gMVP
0.65

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: rs755314355; hg19: chr4-123664663; API