Ciona intestinalis      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 (0 or Unreviewed (12

No.StatusEKPD IDGene IDGene Name
1
EKS-CII-00150
ENSCING00000009985
LOC100176045; CIN.28313
2
EKS-CII-00146
ENSCING00000003124
LOC100176410; CIN.41015
3
EKS-CII-00148
ENSCING00000003875
CIN.32149
4
EKS-CII-00155
ENSCING00000023487
5
EKS-CII-00152
ENSCING00000009050
6
EKS-CII-00151
ENSCING00000007950
LOC100185343; CIN.4994
7
EKS-CII-00144
ENSCING00000008201
CIN.48476; LOC100184744
8
EKS-CII-00145
ENSCING00000006022
CIN.23896; LOC100184385
9
EKS-CII-00153
ENSCING00000006359
10
EKS-CII-00149
ENSCING00000004009
LOC100176904; CIN.22643
11
EKS-CII-00154
ENSCING00000004591
CIN.50753; LOC100186012
12
EKS-CII-00147
ENSCING00000020900
LOC100181650; CIN.20926