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CABP1
Calcium binding proteins are an important component of calcium mediated cellular signal transduction. This gene encodes a protein that belongs to a subfamily of calcium binding proteins which share similarity to calmodulin. The protein encoded by this gene regulates the gating of voltage-gated calcium ion channels. This protein inhibits calcium-dependent inactivation and supports calcium-dependent facilitation of ion channels containing voltage-dependent L-type calcium channel subunit alpha-1C. This protein also regulates calcium-dependent activity of inositol 1,4,5-triphosphate receptors, P/Q-type voltage-gated calcium channels, and transient receptor potential channel TRPC5. This gene is predominantly expressed in retina and brain. Alternative splicing results in multiple transcript variants encoding disinct isoforms.
Predicted location
Intracellular
Single cell type specificity
Group enriched (Horizontal cells, Excitatory neurons, Bipolar cells)
Immune cell specificity
Not detected in immune cells
Cell line specificity
Cell line enhanced (AF22, NTERA-2, RT4, SCLC-21H, U-87 MG)
Interaction
Homodimer; when bound to calcium or magnesium. Interacts (via C-terminus) with ITPR1, ITPR2 and ITPR3. This binding is calcium dependent and the interaction correlates with calcium concentration. An additional calcium-independent interaction with the N-terminus of ITPR1 results in a decreased InsP(3) binding to the receptor. Interacts with CACNA1A (via C-terminal CDB motif) in the pre- and postsynaptic membranes. Interacts with CACNA1C (via C-terminal C and IQ motifs). The binding to the C motif is calcium independent whereas the binding to IQ requires the presence of calcium and is mutually exclusive with calmodulin binding. Interacts with CACNA1D (By similarity). Interacts with TRPC5 (via C-terminus). Interacts (via EF-hands 1 and 2) at microtubules with MAP1LC3B. Interacts with MYO1C (By similarity). Interacts (via EF-hands 1 and 2) with NSMF (via the central NLS-containing motif region), the interaction occurs in a calcium dependent manner after synaptic NMDA receptor stimulation and prevents nuclear import of NSMF. Interacts with SPACA9 (By similarity).
More Types Infomation
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- Derivation: Phage display library screening
- Species Reactivity: Human
- Type: Rabbit IgG
- Application: WB
- Chicken Anti-CABP1 Polyclonal IgY (BRD-0998MZ)
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- Species Reactivity: Human, Rat
- Type: Chicken antibody
- Application: WB
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For Research Use Only. Not For Clinical Use.