InnateDB: Systems Biology of the Innate Immune Response

Homo sapiens Protein: TTBK2

Summary

InnateDB Protein

IDBP-747460.3

Last Modified

2014-10-13 [Report errors or provide feedback]

Gene Symbol

TTBK2

Protein Name

Synonyms

Species

Homo sapiens

Ensembl Protein

ENSP00000455734

InnateDB Gene

IDBG-8101 (TTBK2)

Protein Structure

UniProt Annotation

Function

Serine/threonine kinase that acts as a key regulator of ciliogenesis: controls the initiation of ciliogenesis by binding to the distal end of the basal body and promoting the removal of CCP110, which caps the mother centriole, leading to the recruitment of IFT proteins, which build the ciliary axoneme. Has some substrate preference for proteins that are already phosphorylated on a Tyr residue at the +2 position relative to the phosphorylation site. Able to phosphorylate tau on serines in vitro. {ECO:0000269PubMed:21548880, ECO:0000269PubMed:23141541}.

Subcellular Localization

Cell projection, cilium {ECO:0000250}. Cytoplasm, cytoskeleton, cilium basal body {ECO:0000250}. Cytoplasm, cytoskeleton, microtubule organizing center, centrosome, centriole. Cytoplasm, cytosol. Nucleus. Note=Localizes to the transition zone in primary cilia in response to cell cycle signals that promote ciliogenesis (By similarity). May also be present in cytosol and, at lower level in the nucleus. {ECO:0000250}.

Disease Associations

Spinocerebellar ataxia 11 (SCA11) [MIM:604432]: Spinocerebellar ataxia is a clinically and genetically heterogeneous group of cerebellar disorders. Patients show progressive incoordination of gait and often poor coordination of hands, speech and eye movements, due to degeneration of the cerebellum with variable involvement of the brainstem and spinal cord. SCA11 is an autosomal dominant cerebellar ataxia (ADCA). It is a relatively benign, late-onset, slowly progressive neurologic disorder. {ECO:0000269PubMed:18037885}. Note=The disease is caused by mutations affecting the gene represented in this entry.

Tissue Specificity

Comments

Interactions

Number of Interactions

This gene and/or its encoded proteins are associated with 9 experimentally validated interaction(s) in this database.

Experimentally validated
Total	9 [view]
Protein-Protein	9 [view]
Protein-DNA	0
Protein-RNA	0
DNA-DNA	0
RNA-RNA	0
DNA-RNA	0

Gene Ontology

Molecular Function

Accession	GO Term
GO:0004672	protein kinase activity
GO:0004674	protein serine/threonine kinase activity
GO:0004713	protein tyrosine kinase activity
GO:0005515	protein binding
GO:0005524	ATP binding
GO:0016772	transferase activity, transferring phosphorus-containing groups

Biological Process

GO:0006468	protein phosphorylation
GO:0007224	smoothened signaling pathway
GO:0008219	cell death
GO:0018105	peptidyl-serine phosphorylation
GO:0042384	cilium assembly

Cellular Component

GO:0005615	extracellular space
GO:0005634	nucleus
GO:0005814	centriole
GO:0005829	cytosol
GO:0035869	ciliary transition zone
GO:0036064	ciliary basal body

Protein Structure and Domains

PDB ID

InterPro

IPR000719 Protein kinase domain
IPR001245 Serine-threonine/tyrosine-protein kinase catalytic domain
IPR002290 Serine/threonine/dual specificity protein kinase, catalytic domain
IPR011009 Protein kinase-like domain
IPR020635 Tyrosine-protein kinase, catalytic domain

PFAM

PF00069
PF07714

PRINTS

PR00109

PIRSF

SMART

SM00220
SM00219

TIGRFAMs

Post-translational Modifications

Modification

Cross-References

SwissProt