Id |
Subject |
Object |
Predicate |
Lexical cue |
T1 |
133-293 |
DRI_Background |
denotes |
Mutations in the depalmitoylation enzyme, palmitoyl protein thioesterase (PPT1), result in the early onset neurodegenerative disease known as Infantile Neuronal |
T2 |
315-316 |
DRI_Background |
denotes |
. |
T3 |
317-421 |
DRI_Approach |
denotes |
Here, we provide proteomic evidence suggesting that PPT1 deficiency could be considered as a ciliopathy. |
T4 |
422-606 |
DRI_Background |
denotes |
Analysis of membrane proteins from brain enriched for acylated proteins from neonate Ppt1 knock out and control mice revealed a list of 88 proteins with differential expression levels. |
T5 |
607-703 |
DRI_Approach |
denotes |
Amongst them, we identified Rab3IP, which regulates ciliogenesis in concert with Rab8 and Rab11. |
T6 |
704-773 |
DRI_Background |
denotes |
Immunostaining analysis revealed that PPT1 is localized in the cilia. |
T7 |
774-933 |
DRI_Background |
denotes |
Indeed, an unbiased proteomics analysis on isolated cilia revealed 660 proteins, which differed in their abundance levels between wild type and Ppt1 knock out. |
T8 |
934-1085 |
DRI_Approach |
denotes |
We demonstrate here that Rab3IP, Rab8 and Rab11 are palmitoylated, and that palmitoylation of Rab11 is required for correct intracellular localization. |
T9 |
1086-1281 |
DRI_Background |
denotes |
Cells and brain preparations from Ppt1-/- mice exhibited fewer cells with cilia and abnormally longer cilia, with both acetylated tubulin and Rab3IP wrongly distributed along the length of cilia. |
T10 |
1282-1514 |
DRI_Outcome |
denotes |
Most importantly, the analysis revealed a difference in the distribution and levels of the modified proteins in cilia in the retina of mutant mice versus the wildtype, which may be important in the early neurodegenerative phenotype. |
T11 |
1515-1644 |
DRI_Outcome |
denotes |
Overall, our results suggest a novel link between palmitoylated proteins, cilial organization and the pathophysiology of Neuronal |
T12 |
1666-1667 |
DRI_Outcome |
denotes |
. |