Saccharomyces cerevisiae      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 12 genes.  Reviewed (12 or Unreviewed (0

No.StatusiEKPD IDEnsemble Gene IDUniProt AccessionGene Name
1
iEKPD-Sac-0012
YBR274W
P38147
CHK1
2
iEKPD-Sac-0114
YPL141C
Q03002
FRK1
3
iEKPD-Sac-0030
YDR507C
Q12263
GIN4
4
iEKPD-Sac-0070
YKL101W
P34244
HSL1
5
iEKPD-Sac-0013
YCL024W
P25389
KCC4
6
iEKPD-Sac-0024
YDR122W
P13185
KIN1
7
iEKPD-Sac-0081
YLR096W
P13186
KIN2
8
iEKPD-Sac-0107
YOR233W
Q01919
KIN4
9
iEKPD-Sac-0001
YAL017W
P31374
PSK1
10
iEKPD-Sac-0100
YOL045W
Q08217
PSK2
11
iEKPD-Sac-0028
YDR477W
P06782
SNF1
12
iEKPD-Sac-0115
YPL150W
Q12152
YPL150W