Tbio DACT1 Dapper homolog 1

Protein Summary

Description

Involved in regulation of intracellular signaling pathways during development. Specifically thought to play a role in canonical and/or non-canonical Wnt signaling pathways through interaction with DSH (Dishevelled) family proteins. The activation/inhibition of Wnt signaling may depend on the phosphorylation status. Proposed to regulate the degradation of CTNNB1/beta-catenin, thereby modulating the transcriptional activation of target genes of the Wnt signaling pathway. Its function in stabilizing CTNNB1 may involve inhibition of GSK3B activity. Promotes the membrane localization of CTNNB1. The cytoplasmic form can induce DVL2 degradation via a lysosome-dependent mechanism; the function is inhibited by PKA-induced binding to 14-3-3 proteins, such as YWHAB. Seems to be involved in morphogenesis at the primitive streak by regulating VANGL2 and DVL2; the function seems to be independent of canonical Wnt signaling and rather involves the non-canonical Wnt/planar cell polarity (PCP) pathway (By similarity). The nuclear form may prevent the formation of LEF1:CTNNB1 complex and recruit HDAC1 to LEF1 at target gene promoters to repress transcription thus antagonizing Wnt signaling. May be involved in positive regulation of fat cell differentiation. During neuronal differentiation may be involved in excitatory synapse organization, and dendrite formation and establishment of spines. The protein encoded by this gene belongs to the dapper family, characterized by the presence of PDZ-binding motif at the C-terminus. It interacts with, and positively regulates dishevelled-mediated signaling pathways during development. Depletion of this mRNA from xenopus embryos resulted in loss of notochord and head structures, and mice lacking this gene died shortly after birth from severe posterior malformations. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Jan 2012]

Uniprot Accession IDs

• Q9NYF0
• A8MYJ2
• Q86TY0
• hDPR1

Gene Name

• DACT1

Ensembl ID

• ENST00000335867
• ENSP00000337439
• ENSG00000165617
• ENST00000395153
• ENSP00000378582

Symbol

• DPR1
• HNG3
• DPR1
• TBS2
• FRODO
• HDPR1
• DAPPER
• THYEX3
• DAPPER1

Knowledge Table

Most Knowledge About	Knowledge Value (0 to 1 scale)
biological process	0.93
PubMedID	0.79
histone modification site profile	0.72
transcription factor	0.7
interacting protein	0.66

Protein Classes

No PANTHER Classes or DTO Classes found

IDG Development Level Summary

Tdark

These are targets about which virtually nothing is known. They do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 449.5   (req: < 5)

Gene RIFs: 34   (req: <= 3)

Antibodies: 139   (req: <= 50)

Tbio

These targets do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 449.5   (req: >= 5)

Gene RIFs: 34   (req: > 3)

Antibodies: 139   (req: > 50)

- OR - satisfy the following criterion:

Gene Ontology Terms: 25

Tchem

Target has at least one ChEMBL compound with an activity cutoff of < 30 nM - AND - satisfies the preceding conditions

Active Ligand: 0

Tclin

Target has at least one approved drug - AND - satisfies the preceding conditions

Active Drug: 0