Primary antibody notesThe neuronal calcium sensor (NCS) proteins are bind calcium through EF-hand motifs and are predominantly expressed in neurons. Photoreceptor cells express type A sensors and include the proteins recoverin, S-modulin, and visinin. Type B receptors are expressed in neurons and include NCS1 and the Drosophila homolog frequenin, and VILIP. NCS1 has been shown to regulate neurosecretion in a calcium-dependent manner, potentiates nitric oxide synthase activity, and can activate calcineurin and 3'-5' nucleotide phosphodiesterase.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Use a concentration of 1 µg/ml. Detects a band of approximately 20 kDa (predicted molecular weight: 25 kDa).
FunctionNeuronal 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 (By similarity). Stimulates PI4KB kinase activity (By similarity). Involved in long-term synaptic plasticity through its interaction with PICK1 (By similarity). May also play a role in neuron differentiation through inhibition of the activity of N-type voltage-gated calcium channel.
Sequence similaritiesBelongs to the recoverin family. Contains 4 EF-hand domains.
Cellular localizationGolgi apparatus > Golgi stack membrane. Cell junction > synapse > postsynaptic cell membrane > postsynaptic density. Cytoplasm > perinuclear region. Cell membrane. Associated with Golgi stacks. Post-synaptic densities of dendrites, and in the pre-synaptic nerve terminal at neuromuscular junctions.