Caenorhabditis elegans      STE/STE20


※ STE20 family introduction

    STE20 was first identified as a putative MAP4K in mating pathway in yeast and its homologs in human constitute a large family in STE group. STE20 can further be classified into two subclasses, PAK and GCK. Structure analysis shows that the kinase domains in PAKs are located at C-terminal while GCKs kinase domains are located in N-terminal. Three mammalian STE20-like kinases have been reported to be able to phosphorylate MAP3Ks, including HPK1, GLK and PAK2. HPK1 predominantly mediate the activation of the stress-activated SAPK/JNK pathway. PAK2 is activated via binding of the Rac1 or Cdc42 and subsequently involved in direct phosphorylation of MAP3K Raf-1. Besides as a upstream activator of MAPK pathway, STE20 are often used in signaling events, including cell apoptosis, morphogenesis and cytoskeletal rearrangement such as cell motility and cell shape changes (1).

Reference
1. Dan, I., Watanabe, N.M. and Kusumi, A. (2001) The Ste20 group kinases as regulators of MAP kinase cascades. Trends Cell Biol, 11, 220-230. PMID: 11316611


There are 13 genes.  Reviewed (10 or Unreviewed (3

No.StatusiEKPD IDEnsemble Gene IDUniProt AccessionGene Name
1
iEKPD-Cae-0269
WBGene00015376
Q11112
C03B1.5
2
iEKPD-Cae-0304
WBGene00017472
Q9NB31
cst-1
3
iEKPD-Cae-0030
WBGene00001526
H2L099
gck-1
4
iEKPD-Cae-0244
WBGene00013355
G5EEN4
gck-3
5
iEKPD-Cae-0070
WBGene00002201
P46549
kin-18
6
iEKPD-Cae-0087
WBGene00003144
G5EGQ3
max-2
7
iEKPD-Cae-0093
WBGene00003247
Q23356
mig-15
8
iEKPD-Cae-0105
WBGene00003911
Q17850
pak-1
9
iEKPD-Cae-0136
WBGene00006443
G5EFU0
pak-2
10
iEKPD-Cae-0242
WBGene00013132
G5ECN5
strd-1
11
iEKPD-Cae-0277
WBGene00016038
Q304D8
cst-2
12
iEKPD-Cae-0379
WBGene00022603
Q23290
gck-2
13
iEKPD-Cae-0163
WBGene00007287
O17566
gck-4