Neuronal calcium sensor 1 - P62168 (NCS1_RAT)

 

Protein Feature View of PDB entries mapped to a UniProtKB sequence  

  • Number of PDB entries for P62168: 5
 
Function
Neuronal calcium sensor, regulator of G protein-coupled receptor phosphorylation in a calcium dependent manner. Directly regulates GRK1 (RHOK), but not GRK2 to GRK5. Can substitute for calmodulin. Stimulates PI4KB kinase activity. Involved in long-term synaptic plasticity through its interaction with PICK1. May also play a role in neuron differentiation through inhibition of the activity of N-type voltage-gated calcium channel. UniProt
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Subunit Structure
Interacts in a calcium-independent manner with PI4KB, but only if myristoylated. This binding competes with CALN2/CABP7 binding to PI4KB. Interacts in a calcium-dependent manner with PICK1 (via AH domain). Interacts with KCND2, ARF1, ARF3, ARF5 and ARF6 (By similarity). Interacts with IL1RAPL1. UniProt
Domain
Binds 3 calcium ions via the second, third and fourth EF-hand. EF-2 and EF-3 bind both magnesium and calcium, while EF-4 binds only calcium. At the resting state, magnesium is bound to EF-2 and EF-3 and upon activation, both sites bind calcium simultaneously while EF-4 is the last one to be occupied. UniProt
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The PDB to UniProt mapping is based on the data provided by the EBI SIFTS project. See also Velankar et al., Nucleic Acids Research 33, D262-265 (2005).
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