Δ-Catenin Explained

catenin (cadherin-associated protein), delta 1
Hgncid:2515
Symbol:CTNND1
Altsymbols:CTNND
Entrezgene:1500
Omim:601045
Refseq:NM_001331
Uniprot:O60716
Chromosome:11
Arm:q
Band:12.1
catenin (cadherin-associated protein), delta 2 (neural plakophilin-related arm-repeat protein)
Hgncid:2516
Symbol:CTNND2
Entrezgene:1501
Omim:604275
Refseq:NM_001332
Uniprot:Q9UQB3
Chromosome:5
Arm:p
Band:15.2

δ-Catenin is a subfamily of catenin proteins with ten armadillo-repeats and includes the proteins catenin delta-1 and catenin delta-2. Catenin delta-2 is expressed in the brain where it is important for normal cognitive development.[1] Like β-catenin and γ-catenin, δ-catenins seem to interact with presenilins.[2] These catenin-presenilin interaction have implications for cadherin function and regulation of cell-to-cell adhesion.[3]

While β-catenin acts as a transcription regulatory protein in the Wnt/TCF pathway, delta-1 catenin has been implicated as a regulator of the NF-κB transcription factor.[4]

Palmitoylation of δ-catenin seems to coordinate activity-dependent changes in synaptic adhesion molecules, synapse structure, and receptor localizations that are involved in memory formation.[5]

See also

Notes and References

  1. Israely I, Costa RM, Xie CW, Silva AJ, Kosik KS, Liu X . Deletion of the neuron-specific protein delta-catenin leads to severe cognitive and synaptic dysfunction . Curr. Biol. . 14 . 18 . 1657–63 . September 2004 . 15380068 . 10.1016/j.cub.2004.08.065 . free .
  2. Rubio ME, Curcio C, Chauvet N, Brusés JL . Assembly of the N-cadherin complex during synapse formation involves uncoupling of p120-catenin and association with presenilin 1 . Mol. Cell. Neurosci. . 30 . 4 . 611–23 . December 2005 . 16456928 . 10.1016/j.mcn.2005.06.005 . 8841045 .
  3. Teo JL, Ma H, Nguyen C, Lam C, Kahn M . Specific inhibition of CBP/beta-catenin interaction rescues defects in neuronal differentiation caused by a presenilin-1 mutation . Proc. Natl. Acad. Sci. U.S.A. . 102 . 34 . 12171–6 . August 2005 . 16093313 . 1189325 . 10.1073/pnas.0504600102 . 2005PNAS..10212171T . free .
  4. Perez-Moreno M, Davis MA, Wong E, Pasolli HA, Reynolds AB, Fuchs E . p120-catenin mediates inflammatory responses in the skin . Cell . 124 . 3 . 631–44 . February 2006 . 16469707 . 2443688 . 10.1016/j.cell.2005.11.043 .
  5. Brigidi GS, Sun Y, Beccano-Kelly D, Pitman K, Jobasser M, Borgland SL, Milnerwood AJ, Bamji SX . Palmitoylation of [delta]-catenin by DHHC5 mediates activity-induced synapse plasticity . Nature Neuroscience . 17 . 4 . 522–532 . January 23, 2014 . 10.1038/nn.3657. 24562000 . 5025286 .