WHRN

whirlin

Ensembl:
ENSG00000095397
UniProt:
Q9P202
OMIM:
607928
Synonyms:
CIP98, DFNB31, PDZD7B, USH2D

Cilia effects upon perturbation of WHRN

Ciliogenesis screen results (1 screen)

  • Breslow et al. 2018 (CRISPR) [CRISPR]: No Significant Effect PMID:29459680

Phenotypes

Mouse phenotype:
increased thermal nociceptive threshold
Human ciliopathy phenotype:
autosomal recessive nonsyndromic hearing loss 31

Ciliopathy associations

  • Usher Syndrome

Subcellular localization

cilia

Functional category

  • Ciliary assembly/disassembly
  • Actin & cytoskeleton regulation
  • Signaling (Hedgehog, GPCRs, ion channels)
  • Transition zone

Function

DFNB31/whirlin. PDZ scaffold protein. Mutated in autosomal recessive non-syndromic deafness type 31 (12833159) and Usher syndrome type 2D (PMID:17171570) in humans (OMIM 607928). Only the whirlin long isoform (with an additio l N-termi l PDZ domain) is expressed in the reti , the reti is affected if this extra PDZ domain is mutated (20502675). Interacts directly with USH2A and VLGR1 in the connecting cilium of photoreceptor cells (16434480). Colocalizes with MPP1 in the reti at the outer limiting membrane, at the outer sy ptic layer and at the basal bodies and the ciliary axoneme of the connecting cilium of the photoreceptors (17584769). Interacts with L-type calcium channel subunit Ca(v)1.3 (alpha(1D) at synpase in reti (19959638). Interacts with RPGR(ORF15) in the photoreceptors (22323458)

Model organism evidence

Mus musculus (3 references)

Here we describe the generation of an Espin overexpressing transgenic mouse line that results in longer first row stereocilia and discoordination of second-row stereocilia length.

These proteins co-localize with whirlin at the region of the connecting cilium and at the synapse of photoreceptor cells.

PMIDs: 35844198, 19959638, 17619105