Caenorhabditis elegans      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 17 genes.  Reviewed (8 or Unreviewed (9

No.StatusiEKPD IDEnsemble Gene IDUniProt AccessionGene Name
1
iEKPD-Cae-0342
WBGene00019801
P45894
aak-1
2
iEKPD-Cae-0352
WBGene00020142
Q95ZQ4
aak-2
3
iEKPD-Cae-0016
WBGene00000498
Q9N3Z3
chk-1
4
iEKPD-Cae-0076
WBGene00002210
Q21017
kin-29
5
iEKPD-Cae-0106
WBGene00003916
Q9TW45
par-1
6
iEKPD-Cae-0107
WBGene00003919
Q9GN62
par-4
7
iEKPD-Cae-0363
WBGene00021012
U4PR86
pig-1
8
iEKPD-Cae-0123
WBGene00004719
Q19469
sad-1
9
iEKPD-Cae-0309
WBGene00017737
Q9TXI1
CELE_F23C8.8
10
iEKPD-Cae-0194
WBGene00009867
O17879
CELE_F49C5.4
11
iEKPD-Cae-0345
WBGene00019817
O44547
CELE_R02C2.1
12
iEKPD-Cae-0343
WBGene00019814
Q86S44
CELE_R02C2.6
13
iEKPD-Cae-0238
WBGene00012792
Q9NF25
CELE_Y43D4A.6
14
iEKPD-Cae-0259
WBGene00013994
G5EFV2
CELE_ZK524.4
15
iEKPD-Cae-0298
WBGene00017083
Q965F6
kin-33
16
iEKPD-Cae-0344
WBGene00019815
O44546
kin-34
17
iEKPD-Cae-0143
WBGene00006814
H2KYA5
unc-82