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 targets a variety of substrates and participates 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 protect 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 13 genes.  Reviewed (1 or Unreviewed (12

No.StatusiEKPD IDEnsemble Gene IDUniProt AccessionGene Name
1
iEKPD-Drm-0192
FBgn0261278
O61661
grp
2
iEKPD-Drm-0077
FBgn0023169
O18645
AMPKalpha
3
iEKPD-Drm-0114
FBgn0031299
Q9VPW3
anon-WO0257455.15
4
iEKPD-Drm-0129
FBgn0033915
Q0E981
CG8485
5
iEKPD-Drm-0201
FBgn0262617
A0A0B4KFP5
DmelCG43143
6
iEKPD-Drm-0090
FBgn0026064
Q9VGP9
KP78a
7
iEKPD-Drm-0089
FBgn0026063
Q9VGQ0
KP78b
8
iEKPD-Drm-0148
FBgn0038167
Q8T9L5
Lkb1
9
iEKPD-Drm-0189
FBgn0260934
A1ZBL9
par-1
10
iEKPD-Drm-0132
FBgn0034950
Q95SH0
Pask
11
iEKPD-Drm-0140
FBgn0036544
Q9VUV4
sff
12
iEKPD-Drm-0085
FBgn0025625
Q9W532
Sik2
13
iEKPD-Drm-0200
FBgn0262103
A1ZBC4
Sik3