ARL13B

Chr 3

ARF like GTPase 13B

Also known as: ARL2L1, JBTS8

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]

GeneReviewsResearchGenerating clinical summary…

Primary Disease Associations & Inheritance

UniProtJoubert syndrome 8

Clinical highlights

Gene-disease validity (ClinGen)
Joubert syndrome · ARDefinitivesufficient evidence for diagnostic panels
0
Active trials
43
Pubs (1 yr)
P/LP submissions
P/LP missense
1.04
LOEUF
Multiple*
Mechanism· predicted
📖
GeneReview available — ARL13B
Authoritative clinical overview · Recommended first read
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Some data sources returned errors (1)

omim: Error: OMIM fetch failed: 429

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint?
1.04LOEUF
pLI 0.000
Z-score 1.42
OE 0.69 (0.471.04)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint?
-0.06Z-score
OE missense 1.01 (0.911.13)
230 obs / 227.5 exp
Tolerant

Tolerant to missense variation

Observed / Expected Ratios?
LoF OE?0.69 (0.471.04)
00.351.4
Missense OE?1.01 (0.911.13)
00.61.4
Synonymous OE?1.04
01.21.6
LoF obs/exp: 17 / 24.6Missense obs/exp: 230 / 227.5Syn Z: -0.27

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

ARL13B · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

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