rs121912606

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM2PP3_StrongPP5

The NM_001174150.2(ARL13B):​c.236G>A​(p.Arg79Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000062 in 1,613,518 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 Pathogenic (no stars).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

ARL13B
NM_001174150.2 missense

Scores

13
4
2

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 9.97
Variant links:
Genes affected
ARL13B (HGNC:25419): (ADP ribosylation factor like GTPase 13B) This gene encodes a member of the ADP-ribosylation factor-like family. The encoded protein is a small GTPase that contains both N-terminal and C-terminal guanine nucleotide-binding motifs. This protein is localized in the cilia and plays a role in cilia formation and in maintenance of cilia. Mutations in this gene are the cause of Joubert syndrome 8. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Mar 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.985
PP5
Variant 3-94003764-G-A is Pathogenic according to our data. Variant chr3-94003764-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 1991.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ARL13BNM_001174150.2 linkuse as main transcriptc.236G>A p.Arg79Gln missense_variant 3/10 ENST00000394222.8 NP_001167621.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ARL13BENST00000394222.8 linkuse as main transcriptc.236G>A p.Arg79Gln missense_variant 3/101 NM_001174150.2 ENSP00000377769 P1Q3SXY8-1

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152076
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:
0.00
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
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251214
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135776
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 SAS 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:
0.00000547
AC:
8
AN:
1461442
Hom.:
0
Cov.:
31
AF XY:
0.00000688
AC XY:
5
AN XY:
727020
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000450
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
152076
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74292
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Joubert syndrome 8 Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMAug 01, 2008- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.56
BayesDel_addAF
Pathogenic
0.36
D
BayesDel_noAF
Pathogenic
0.36
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.60
D;D
Eigen
Pathogenic
1.0
Eigen_PC
Pathogenic
0.99
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.98
.;D
M_CAP
Benign
0.077
D
MetaRNN
Pathogenic
0.99
D;D
MetaSVM
Uncertain
0.44
D
MutationAssessor
Uncertain
2.8
M;M
MutationTaster
Benign
1.0
A;A;A;A;A
PrimateAI
Pathogenic
0.81
D
PROVEAN
Uncertain
-3.7
D;D
REVEL
Pathogenic
0.80
Sift
Pathogenic
0.0
D;D
Sift4G
Pathogenic
0.0
D;D
Polyphen
1.0
D;D
Vest4
0.96
MutPred
0.96
Loss of MoRF binding (P = 0.0321);Loss of MoRF binding (P = 0.0321);
MVP
0.97
MPC
0.46
ClinPred
1.0
D
GERP RS
5.9
Varity_R
0.88
gMVP
0.83

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: rs121912606; hg19: chr3-93722608; API