Molecular Target Synopsis
Domains and Structures
Drugs and Clinical Candidates
Ligand Efficiency Plot
Family Cladogram
Interaction Network
Gene Expression
Gene Copy Number Variation
Germline Genetics

TAOK1 (Q7L7X3) - Overview - Molecular Target Synopsis


TAOK1, Serine/threonine-protein kinase TAO1
Enzyme Classification
UniProt Q7L7X3

Also Known as TAOK1_HUMAN, TAOK1, KIAA1361, MAP3K16, MARKK

Serine/threonine-protein kinase involved in various processes such as p38/MAPK14 stress-activated MAPK cascade, DNA damage response and regulation of cytoskeleton stability. Phosphorylates MAP2K3, MAP2K6 and MARK2. Acts as an activator of the p38/MAPK14 stress-activated MAPK cascade by mediating phosphorylation and subsequent activation of the upstream MAP2K3 and MAP2K6 kinases. Involved in G-protein coupled receptor signaling to p38/MAPK14. In response to DNA damage, involved in the G2/M transition DNA damage checkpoint by activating the p38/MAPK14 stress-activated MAPK cascade, probably by mediating phosphorylation of MAP2K3 and MAP2K6. Acts as a regulator of cytoskeleton stability by phosphorylating 'Thr-208' of MARK2, leading to activate MARK2 kinase activity and subsequent phosphorylation and detachment of MAPT/TAU from microtubules. Also acts as a regulator of apoptosis: regulates apoptotic morphological changes, including cell contraction, membrane blebbing and apoptotic bodies formation via activation of the MAPK8/JNK cascade. Self-associates. Interacts with MAP2K3 (By similarity). Interacts with SPRED1 and TESK1. Interacts with MAP3K7.

Isoforms / Transcripts (Protein Coding)

Sub-cellular localization

UniProt: TAOK1 is active in the following subcellular-locations: cytoplasm.
GO terms: TAOK1 is active in the following subcellular-locations: cytoplasm, cytosol, extracellular exosome, microtubule cytoskeleton, nucleus, perinuclear region of cytoplasm.

GO terms

Gene Copy Number Variation

In COSMIC - Cell Lines Project TAOK1 has gain in 4 cell-lines, loss in 2 cell-lines and no signal in 999 cell-lines. (see details)

Gene Expression

In NCI60, the highest expressing cell lines are: M14, SK_OV_3, LOXIMVI

In Array Express (RNA-seq of 675 commonly used human cancer cell lines), the highest expressing cell lines are: Hs 746T, SK-N-FI, KP4

In Array Express (RNA-seq of long poly adenylated RNA and long non poly adenylated RNA from ENCODE cell lines), the highest expressing cell lines are: NHLF, HSMM, AG445

(see details)

RNA Interference

TAOK1 was reported in the following RNAI studies:

Cell - Large Scale Profiling of Kinase Dependencies in Cancer Cell Lines, the highest RNAi cell lines are: MDAMB157, NOS1. (see details)

3D Structures

At greater than 75% identity similarity to TAOK1 there are:
4 structures (7 chains) solved
3 are solved in complex with at least one small molecule ligand

(see details)
Molecular Target 3D Synopsis

Screening and Chemistry

TAOK1 has been screened with 392 compounds (680 bioactivities), 79 compounds have bioactivities that show binding affinity of <= 500nM (135 bioactivities). (see details)