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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Nat+Cell+Biol
2016 ; 18
(1
): 122-31
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gab.com Text
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English Wikipedia
TMEM107 recruits ciliopathy proteins to subdomains of the ciliary transition zone
and causes Joubert syndrome
#MMPMID26595381
Lambacher NJ
; Bruel AL
; van Dam TJ
; Szyma?ska K
; Slaats GG
; Kuhns S
; McManus GJ
; Kennedy JE
; Gaff K
; Wu KM
; van der Lee R
; Burglen L
; Doummar D
; Rivière JB
; Faivre L
; Attié-Bitach T
; Saunier S
; Curd A
; Peckham M
; Giles RH
; Johnson CA
; Huynen MA
; Thauvin-Robinet C
; Blacque OE
Nat Cell Biol
2016[Jan]; 18
(1
): 122-31
PMID26595381
show ga
The transition zone (TZ) ciliary subcompartment is thought to control cilium
composition and signalling by facilitating a protein diffusion barrier at the
ciliary base. TZ defects cause ciliopathies such as Meckel-Gruber syndrome (MKS),
nephronophthisis (NPHP) and Joubert syndrome (JBTS). However, the molecular
composition and mechanisms underpinning TZ organization and barrier regulation
are poorly understood. To uncover candidate TZ genes, we employed bioinformatics
(coexpression and co-evolution) and identified TMEM107 as a TZ protein mutated in
oral-facial-digital syndrome and JBTS patients. Mechanistic studies in
Caenorhabditis elegans showed that TMEM-107 controls ciliary composition and
functions redundantly with NPHP-4 to regulate cilium integrity, TZ docking and
assembly of membrane to microtubule Y-link connectors. Furthermore, nematode
TMEM-107 occupies an intermediate layer of the TZ-localized MKS module by
organizing recruitment of the ciliopathy proteins MKS-1, TMEM-231 (JBTS20) and
JBTS-14 (TMEM237). Finally, MKS module membrane proteins are immobile and
super-resolution microscopy in worms and mammalian cells reveals periodic
localizations within the TZ. This work expands the MKS module of
ciliopathy-causing TZ proteins associated with diffusion barrier formation and
provides insight into TZ subdomain architecture.