Drosophila melanogaster      CAMK      CAMKL

※ CAMKL family introduction

    CAMKL family consists of several subfamily including SNRK, QIK, BRSK, AMPK, MARK, NuaK, NIM1, HUNK, LKB, PASK, MELK and CHK1. They are classified into CAMKL family for the high similarity kinase catalytic domain.
AMPK subfamily (AMP-activated protein kinase) consists of three subunits, a catalytic subunit (α) and two regulatory subunits (β and γ). Two catalytic subunits have been identified in mammals. Activation of AMPK is involved in two steps; first, AMP binds to γ-subunit, and second the phosphorylation of threonine 172 by LKB1. Activated AMPK target a variety of substrates and participate different cellular processes, including mTORC1 signaling, phosphorylation of p53 or other tumor suppressors (1).
MARK subfamily (microtubule-affinity regulating kinases) consists of four members (MARK1-MARK4) in mammals cells. All isoforms contain a N-terminal header, a catalytic kinase domain, a ubiquitin-associated domain, a spacer domain and a C-terminal KA1 domain. MARKs are discovered for its ability to regulate the stability of microtubules. Studies also show that MARK has some relation with disease, such as Alzheimer's disease (2).
Nuak subfamilies are AMPK related kinases. NuaK1 are stress-activated kinase which is involved in tolerance to glucose starvation. NuaK1 can induce cell-cell detachment by increasing F-actin conversion to G-actin. NuaK1 can protects cells from CD95-mediated apoptosis and is required for the increased motility and invasiveness of CD95- activated tumor cells (3).

Reference
1. Luo, Z., Zang, M. and Guo, W. (2010) AMPK as a metabolic tumor suppressor: control of metabolism and cell growth. Future Oncol, 6, 457-470. PMID: 20222801
2. Matenia, D. and Mandelkow, E.M. (2009) The tau of MARK: a polarized view of the cytoskeleton. Trends Biochem Sci, 34, 332-342. PMID: 19559622
3. Suzuki, A., Kusakai, G., Kishimoto, A., Minegichi, Y., Ogura, T. and Esumi, H. (2003) Induction of cell-cell detachment during glucose starvation through F-actin conversion by SNARK, the fourth member of the AMP-activated protein kinase catalytic subunit family. Biochem Biophys Res Commun, 311, 156-161. PMID: 14575707


There are 12 genes.  Reviewed (1 or Unreviewed (11

No.StatusEKPD IDGene IDGene Name
1
EKS-DRM-00126
FBgn0023169
CG3051, Dmel_CG3051; EG:132E8.2, SNF1A-RA; SNF1A
2
EKS-DRM-00131
FBgn0031299
CG4629; CG4629, Dmel_CG4629
3
EKS-DRM-00128
FBgn0262617
CG43143; CG11872, CG43143, Dmel_CG11872
4
EKS-DRM-00125
FBgn0262103
CG18604, CG42856, Dmel_CG18604; Sik3
5
EKS-DRM-00127
FBgn0036544
sff; CG6114, Dmel_CG6114
6
EKS-DRM-00122
FBgn0260934
par-1; Dmel_CG8201
7
EKS-DRM-00130
FBgn0261278
grp; CG17161
8
EKS-DRM-00123
FBgn0025625
Actn, EG:22E5.8; Sik2; CG4290; SIK2
9
EKS-DRM-00129
FBgn0033915
CG8485-RC; CG8485
10
EKS-DRM-00132
FBgn0038167
CG9374, Dmel_CG9374; lkb1
11
EKS-DRM-00124
FBgn0026064
KP78a; Dmel_CG6715
12
EKS-DRM-00133
FBgn0034950
Pask; CG3105, Dmel_CG3105