Xenopus tropicalis      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 20 genes.  Reviewed (2 or Unreviewed (18

No.StatusiEKPD IDEnsemble Gene IDUniProt AccessionGene Name
1
iEKPD-Xet-0141
ENSXETG00000007352.3
B1WAS2
hunk
2
iEKPD-Xet-0124
ENSXETG00000006551.3
Q28GW8
melk
3
iEKPD-Xet-0591
ENSXETG00000032412.1
F7EJN8
4
iEKPD-Xet-0461
ENSXETG00000022924.5
F7DNA6
brsk1
5
iEKPD-Xet-0094
ENSXETG00000004614.3
F6Z338
brsk2
6
iEKPD-Xet-0312
ENSXETG00000014861.3
F7CZU5
chek1
7
iEKPD-Xet-0472
ENSXETG00000023522.3
F6XC23
LOC100485259
8
iEKPD-Xet-0059
ENSXETG00000002704.3
F6WG24
mark2
9
iEKPD-Xet-0262
ENSXETG00000012767.3
F6ZJY0
mark3
10
iEKPD-Xet-0389
ENSXETG00000019104.3
F6WUK2
mark4
11
iEKPD-Xet-0602
ENSXETG00000032954.1
F7BF55
nim1k
12
iEKPD-Xet-0380
ENSXETG00000018772.3
F7B8H1
nuak1
13
iEKPD-Xet-0026
ENSXETG00000000974.3
B2GUK7
nuak2
14
iEKPD-Xet-0133
ENSXETG00000007026.3
F6XJN6
prkaa1
15
iEKPD-Xet-0226
ENSXETG00000011138.3
F6R539
prkaa2
16
iEKPD-Xet-0280
ENSXETG00000013685.3
F6R007
sik1
17
iEKPD-Xet-0203
ENSXETG00000010165.4
F7AB54
sik2
18
iEKPD-Xet-0081
ENSXETG00000003762.3
F7AAR0
sik3
19
iEKPD-Xet-0443
ENSXETG00000022022.3
F6PI18
snrk
20
iEKPD-Xet-0074
ENSXETG00000003285.3
F6PM85
stk11