Protein: Catenin alpha-2 (Alpha N-catenin) (Alpha-catenin-related protein) (P26232)
Organism: Homo sapiens (Human)
Function: May function as a linker between cadherin adhesion receptors and the cytoskeleton to regulate cell-cell adhesion and differentiation in the nervous system (By similarity). Required for proper regulation of cortical neuronal migration and neurite growth. It acts as negative regulator of Arp2/3 complex activity and Arp2/3-mediated actin polymerization. It thereby suppresses excessive actin branching which would impair neurite growth and stability. Regulates morphological plasticity of synapses and cerebellar and hippocampal lamination during development. Functions in the control of startle modulation (By similarity).
Subcellular location: Cell membrane {ECO:0000250|UniProtKB:Q61301}; Peripheral membrane protein {ECO:0000250|UniProtKB:Q61301}; Cytoplasmic side {ECO:0000250|UniProtKB:Q61301}. Cytoplasm {ECO:0000269|PubMed:16182284}. Cytoplasm, cytoskeleton {ECO:0000250|UniProtKB:Q61301}. Cell junction, adherens junction {ECO:0000250|UniProtKB:Q61301}. Cell projection, axon {ECO:0000250|UniProtKB:Q61301}. Nucleus {ECO:0000269|PubMed:16182284}.
Sequence: MTSATSPIILKWDPKSLEIRTLTVERLLEPLVTQVTTLVNTSNKGPSGKKKGRSKKAHVLAASVEQATQNFLEKGEQIAKESQDLKEELVAAVEDVRKQGETMRIASSEFADDPCSSVKRGTMVRAARALLSAVTRLLILADMADVMRLLSHLKIVEEALEAVKNATNEQDLANRFKEFGKEMVKLNYVAARRQQELKDPHCRDEMAAARGALKKNATMLYTASQAFLRHPDVAATRANRDYVFKQVQEAIAGISNAAQATSPTDEAKGHTGIGELAAALNEFDNKIILDPMTFSEARFRPSLEERLESIISGAALMADSSCTRDDRRERIVAECNAVRQALQDLLSEYMNNTGRKEKGDPLNIAIDKMTKKTRDLRRQLRKAVMDHISDSFLETNVPLLVLIEAAKSGNEKEVKEYAQVFREHANKLVEVANLACSISNNEEGVKLVRMAATQIDSLCPQVINAALTLAARPQSKVAQDNMDVFKDQWEKQVRVLTEAVDDITSVDDFLSVSENHILEDVNKCVIALQEGDVDTLDRTAGAIRGRAARVIHIINAEMENYEAGVYTEKVLEATKLLSETVMPRFAEQVEVAIEALSANVPQPFEENEFIDASRLVYDGVRDIRKAVLMIRTPEELEDDSDFEQEDYDVRSRTSVQTEDDQLIAGQSARAIMAQLPQEEKAKIAEQVEIFHQEKSKLDAEVAKWDDSGNDIIVLAKQMCMIMMEMTDFTRGKGPLKNTSDVINAAKKIAEAGSRMDKLARAVADQCPDSACKQDLLAYLQRIALYCHQLNICSKVKAEVQNLGGELIVSGTGVQSTFTTFYEVDCDVIDGGRASQLSTHLPTCAEGAPIGSGSSDSSMLDSATSLIQAAKNLMNAVVLTVKASYVASTKYQKVYGTAAVNSPVVSWKMKAPEKKPLVKREKPEEFQTRVRRGSQKKHISPVQALSEFKAMDSF
InterPro domains: - IPR000633: Vinculin, conserved site (conserved_site) [177-197]
- IPR006077: Vinculin/alpha-catenin (family) [18-914]
- IPR001033: Alpha-catenin (family) [11-920]
- IPR036723: Alpha-catenin/vinculin-like superfamily (homologous_superfamily) [57-909]
Interaction partners: - Catenin beta-1
- Catenin alpha-1
- Cadherin-1
- Vinculin
- Afadin
- Tight junction protein 1
- Catenin alpha-3
- Cadherin-2
- Cadherin-17
- Cadherin-8
Gene Ontology annotations:
Molecular Function (MF): GO:0003674 (molecular function), GO:0005488 (binding), GO:0097159 (organic cyclic compound binding), GO:1901363 (heterocyclic compound binding), GO:0005515 (protein binding), GO:0008013 (beta-catenin binding), GO:0003676 (nucleic acid binding), GO:0042802 (identical protein binding), GO:0050839 (cell adhesion molecule binding), GO:0008092 (cytoskeletal protein binding), GO:0045296 (cadherin binding), GO:0003723 (RNA binding)
Biological Process (BP): GO:0008150 (biological process), GO:0009987 (cellular process), GO:0050896 (response to stimulus), GO:0051716 (cellular response to stimulus), GO:0042221 (response to chemical), GO:0009719 (response to endogenous stimulus), GO:0071495 (cellular response to endogenous stimulus), GO:1901700 (response to oxygen-containing compound), GO:1901698 (response to nitrogen compound), GO:0010033 (response to organic substance), GO:0070887 (cellular response to chemical stimulus), GO:0071417 (cellular response to organonitrogen compound), GO:1901699 (cellular response to nitrogen compound), GO:0097305 (response to alcohol), GO:0014070 (response to organic cyclic compound), GO:0010243 (response to organonitrogen compound), GO:0071310 (cellular response to organic substance), GO:1901701 (cellular response to oxygen-containing compound), GO:0097306 (cellular response to alcohol), GO:0071407 (cellular response to organic cyclic compound)
Cellular Component (CC): GO:0005575 (cellular component), GO:0110165 (cellular anatomical entity), GO:0005622 (intracellular anatomical structure), GO:0043226 (organelle), GO:0071944 (cell periphery), GO:0016020 (membrane), GO:0030054 (cell junction), GO:0043229 (intracellular organelle), GO:0043227 (membrane-bounded organelle), GO:0005886 (plasma membrane), GO:0043231 (intracellular membrane-bounded organelle)