Protein Kinase Classification:      CK1      TTBK

※ TTBK family introduction

    TTBKs belong to CK1 family, and two genes encoding the kinase have been identified which are known as TTBK1 and TTBK2. TTBKs were first described as microtubule-associated proteins (MAPs) which can directly phosphorylate both tubulin and tau at multiple sites. Studies also show that TTBK1 is a neuron-specific kinase that can mediate the phosphorylation of tau and aggreagtion at Alzhieimer's disease related sites. Abnormal expressions of TTBK2 have been reported to contribute ti spinocerebellar ataxia type 11 (1).

Reference
1. Qi, H., Yao, C., Cai, W., Girton, J., Johansen, K.M. and Johansen, J. (2009) Asator, a tau-tubulin kinase homolog in Drosophila localizes to the mitotic spindle. Dev Dyn, 238, 3248-3256. PMID: 19890914


CK1 TTBK in eukaryotes:

Ailuropoda melanoleuca (2)Anolis carolinensis (2)Bos taurus (1)
Caenorhabditis elegans (1)Callithrix jacchus (2)Canis familiaris (2)
Cavia porcellus (2)Ciona intestinalis (1)Danio rerio (4)
Drosophila melanogaster (1)Equus caballus (2)Felis catus (1)
Gadus morhua (2)Gallus gallus (2)Gasterosteus aculeatus (3)
Gorilla gorilla (1)Homo sapiens (2)Ictidomys tridecemlineatus (2)
Latimeria chalumnae (2)Loxodonta africana (2)Macaca mulatta (2)
Macropus eugenii (1)Meleagris gallopavo (2)Monodelphis domestica (2)
Mus musculus (2)Mustela putorius furo (2)Myotis lucifugus (2)
Nomascus leucogenys (2)Oreochromis niloticus (2)Ornithorhynchus anatinus (2)
Oryctolagus cuniculus (1)Oryzias latipes (3)Otolemur garnettii (2)
Pan troglodytes (2)Pelodiscus sinensis (1)Petromyzon marinus (1)
Pongo abelii (2)Rattus norvegicus (2)Sarcophilus harrisii (2)
Sorex araneus (1)Sus scrofa (2)Taeniopygia guttata (2)
Takifugu rubripes (3)Tetraodon nigroviridis (4)Xenopus tropicalis (1)
Xiphophorus maculatus (2)