Projects per year
A light-regulated adenylyl cyclase, mPAC, was previously identified from the cyanobacterium Microcoleus chthonoplastes PCC7420. MPAC consists of a flavin-based blue light-sensing LOV domain and a catalytic domain. In this work, we expressed mPAC in an adenylate cyclase A null mutant (aca-) of the eukaryote Dictyostelium discoideum and tested to what extent light activation of mPAC could restore the cAMP-dependent developmental programme of this organism. Amoebas of Dictyostelium, a well-established model organism, generate and respond to cAMP pulses, which cause them to aggregate and construct fruiting bodies. mPAC was expressed under control of a constitutive actin-15 promoter in D. discoideum and displayed low basal adenylyl cyclase activity in darkness that was about five-fold stimulated by blue light. mPAC expression in aca- cells marginally restored aggregation and fruiting body formation in darkness. However, more and larger fruiting bodies were formed when mPAC expressing cells were incubated in light. Extending former applications of light-regulated AC, these results demonstrate that mPAC can be used to manipulate multicellular development in eukaryotes in a light dependent manner.
|Number of pages||4|
|Journal||Journal of Biotechnology|
|Publication status||Published - 10 Dec 2014|
FingerprintDive into the research topics of 'A cyanobacterial light activated adenylyl cyclase partially restores development of a Dictyostelium discoideum, adenylyl cyclase a null mutant'. Together they form a unique fingerprint.
- 3 Finished
Molecular Mechanisms of Encystation and Sporulation (Senior Investigator Award)
1/02/14 → 31/01/20
The Molecular Basis of Phenotypic Evolution in Social Amoebas
Biotechnology and Biological Sciences Research Council
1/04/13 → 31/03/17
Aref#d: 22242. Molecular Mechanisms of Encystation
1/01/10 → 31/01/14