Crossref journal-article
Proceedings of the National Academy of Sciences
Proceedings of the National Academy of Sciences (341)
Abstract

Synaptojanin 1 is a polyphosphoinositide phosphatase concentrated in presynaptic nerve terminals, where it dephosphorylates a pool of phosphatidylinositol 4,5-bisphosphate implicated in synaptic vesicle recycling. Like other proteins with a role in endocytosis, synaptojanin 1 undergoes constitutive phosphorylation in resting synapses and stimulation-dependent dephosphorylation by calcineurin. Here, we show that cyclin-dependent kinase 5 (Cdk5) phosphorylates synaptojanin 1 and regulates its function bothin vitroand in intact synaptosomes. Cdk5 phosphorylation inhibited the inositol 5-phosphatase activity of synaptojanin 1, whereas dephosphorylation by calcineurin stimulated such activity. The activity of synaptojanin 1 was also stimulated by its interaction with endophilin 1, its major binding partner at the synapse. Notably, Cdk5 phosphorylated serine 1144, which is adjacent to the endophilin binding site. Mutation of serine 1144 to aspartic acid to mimic phosphorylation by Cdk5 inhibited the interaction of synaptojanin 1 with endophilin 1. These results suggest that Cdk5 and calcineurin may have an antagonistic role in the regulation of synaptojanin 1 recruitment and activity, and therefore in the regulation of phosphatidylinositol 4,5-bisphosphate turnover at synapses.

Bibliography

Lee, S. Y., Wenk, M. R., Kim, Y., Nairn, A. C., & De Camilli, P. (2004). Regulation of synaptojanin 1 by cyclin-dependent kinase 5 at synapses. Proceedings of the National Academy of Sciences, 101(2), 546–551.

Authors 5
  1. Sang Yoon Lee (first)
  2. Markus R. Wenk (additional)
  3. Yong Kim (additional)
  4. Angus C. Nairn (additional)
  5. Pietro De Camilli (additional)
References 54 Referenced 145
  1. 10.1126/science.271.5255.1533
  2. 10.1146/annurev.cellbio.14.1.231
  3. 10.1016/S1388-1981(01)00165-2
  4. 10.1146/annurev.physiol.65.092101.142517
  5. 10.1073/pnas.85.8.2859
  6. 10.1242/jcs.00122
  7. 10.1016/S0896-6273(00)80848-X
  8. 10.1016/S0896-6273(01)00548-7
  9. 10.1038/35044540
  10. 10.1126/science.291.5506.1047
  11. 10.1016/S0959-440X(02)00395-0
  12. 10.1034/j.1600-0854.2004.00071.x
  13. 10.1242/jcs.114.6.1041
  14. 10.1038/nature01020
  15. 10.1038/379353a0
  16. 10.1016/S0092-8674(00)81649-9
  17. 10.1016/S0896-6273(00)00038-6
  18. 10.1523/JNEUROSCI.21-23-09101.2001
  19. 10.1073/pnas.222657399
  20. 10.1083/jcb.150.3.589
  21. 10.1016/S0896-6273(03)00644-5
  22. 10.1016/S0896-6273(03)00667-6
  23. 10.1016/S0021-9258(18)43787-8
  24. 10.1016/S0014-5793(97)01451-8
  25. 10.1074/jbc.272.15.9625
  26. 10.1074/jbc.274.19.12990
  27. 10.1074/jbc.272.13.8710
  28. 10.1073/pnas.94.16.8569
  29. 10.1128/MCB.17.7.3841
  30. 10.1126/science.8052858
  31. 10.1016/S0960-9822(98)70297-0
  32. 10.1074/jbc.272.49.30984
  33. 10.1074/jbc.274.6.3257
  34. 10.1016/S0166-2236(00)01930-5
  35. 10.1126/science.281.5378.821
  36. Cousin, M. A., Tan, T. C. & Robinson, P. J. (2001) J. Neurochem. 76, 105–116.11145983 (10.1046/j.1471-4159.2001.00049.x) / J. Neurochem. (2001)
  37. 10.1038/ncb1020
  38. 10.1083/jcb.200308110
  39. 10.1074/jbc.M008932200
  40. 10.1038/35096019
  41. 10.1523/JNEUROSCI.21-02-00550.2001
  42. 10.1016/S0092-8674(03)00605-6
  43. 10.1007/BF03401727
  44. 10.1074/jbc.M106338200
  45. 10.1523/JNEUROSCI.23-04-01189.2003
  46. 10.1016/S0896-6273(01)00456-1
  47. 10.1042/bj2980395
  48. 10.1074/jbc.273.37.24057
  49. 10.1016/S0306-4522(02)00560-2
  50. 10.1074/jbc.M007197200
  51. 10.1016/0197-4580(95)00025-A
  52. 10.1523/JNEUROSCI.21-20-07944.2001
  53. 10.1016/S0896-6273(00)80828-4
  54. 10.1074/jbc.274.45.32001
Dates
Type When
Created 21 years, 7 months ago (Jan. 13, 2004, 1:28 p.m.)
Deposited 1 year, 7 months ago (Jan. 11, 2024, 5:09 p.m.)
Indexed 11 months, 1 week ago (Sept. 20, 2024, 11:37 a.m.)
Issued 21 years, 7 months ago (Jan. 2, 2004)
Published 21 years, 7 months ago (Jan. 2, 2004)
Published Online 21 years, 7 months ago (Jan. 2, 2004)
Published Print 21 years, 7 months ago (Jan. 13, 2004)
Funders 0

None

@article{Lee_2004, title={Regulation of synaptojanin 1 by cyclin-dependent kinase 5 at synapses}, volume={101}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.0307813100}, DOI={10.1073/pnas.0307813100}, number={2}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Lee, Sang Yoon and Wenk, Markus R. and Kim, Yong and Nairn, Angus C. and De Camilli, Pietro}, year={2004}, month=jan, pages={546–551} }