Recombinant Human Tectonic-1 (TCTN1)

Uniprot Id

Q2MV58

Target Species

Human

Target Name

TCTN1

Target Full Name

Tectonic-1

Target Function

Component of the tectonic-like complex, a complex localized at the transition zone of primary cilia and acting as a barrier that prevents diffusion of transmembrane proteins between the cilia and plasma membranes. Regulator of Hedgehog (Hh), required for both activation and inhibition of the Hh pathway in the patterning of the neural tube. During neural tube development, it is required for formation of the most ventral cell types and for full Hh pathway activation. Functions in Hh signal transduction to fully activate the pathway in the presence of high Hh levels and to repress the pathway in the absence of Hh signals. Modulates Hh signal transduction downstream of SMO and RAB23.

Target Involvement

Joubert syndrome 13 (JBTS13)

Target Subcellular Location

Cytoplasm, cytoskeleton, cilium basal body. Secreted.

Target Protein Families

Tectonic family

Target Synonyms

JBTS13; TCTN1; TECT1; TECT1_HUMAN; Tectonic family member 1; Tectonic-1

Target Background

This gene encodes a member of a family of secreted and transmembrane proteins. The orthologous gene in mouse functions downstream of smoothened and rab23 to modulate hedgehog signal transduction. This protein is a component of the tectonic-like complex, which forms a barrier between the ciliary axoneme and the basal body. A mutation in this gene was found in a family with Joubert syndrome-13. Alternative splicing results in multiple transcript variants.