Human Calsyntenin-1 Antibody

Catalog # Availability Size / Price Qty
Detection of Human Calsyntenin‑1 by Western Blot.
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Human Calsyntenin-1 Antibody Summary

Species Reactivity
Detects human Calsyntenin-1 in direct ELISAs and Western blots. In direct ELISAs, less than 5% cross‑reactivity with recombinant human (rh) Calsyntenin-2 and rhCalsyntenin-3 is observed.
Polyclonal Sheep IgG
Antigen Affinity-purified
Mouse myeloma cell line NS0-derived recombinant human Calsyntenin-1 isoform 2
Accession # AAH33902
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.


Recommended Concentration
Western Blot
1 µg/mL
See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Western Blot Detection of Human Calsyntenin‑1 antibody by Western Blot. View Larger

Detection of Human Calsyntenin‑1 by Western Blot. Western blot shows lysates of human brain cortex and brain cerebellum tissue. PVDF membrane was probed with 1 µg/mL of Sheep Anti-Human Calsyntenin-1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF5346) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). A specific band was detected for Calsyntenin-1 at approximately 115 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 8.

Reconstitution Calculator

Reconstitution Calculator

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Preparation and Storage

Reconstitute at 0.2 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Size / Price
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: Calsyntenin-1

Calsyntenin-1 (CST-1; also Alcadein-alpha ) is a 140‑150 kDa member of the Alcadein family of molecules. It is expressed in the ER/Golgi and on the plasma membranes of almost all neurons. It is a calcium-binding protein that may regulate post-synaptic signaling and APP cleavage and gene activation. Notably, when cleaved in a manner similar to APP, its intracellular fragment antagonizes APP AICD gene activation. Mature human CST-1 is a 953 amino acid (aa) type I transmembrane protein. It contains two cadherin domains (aa 38‑265) in its extracellular region (aa 29‑859) and a 101 aa cytoplasmic tail. Extracellular cleavage occurs at Met825 Ala826, generating a soluble 115 kDa ECD. Isoforms involve a 78 aa substitution for aa 917‑981, plus deletions of aa 72‑81 and 507‑525. Over aa 30‑851, human CST-1 shares 92% aa identity with mouse CST-1.

Entrez Gene IDs
22883 (Human); 65945 (Mouse); 313717 (Rat)
Alternate Names
alcadein alpha 1; Alcadein-alpha; ALC-ALPHA; alcalpha1; alcalpha2; Alzheimer-related cadherin-like protein; cadherin-related family member 12; calsyntenin 1; Calsyntenin1; Calsyntenin-1; CDHR12; CLSTN1; CS1; CSTN1; FLJ32258; KIAA0911alcadein-alpha; Non-classical cadherin XB31alpha; non-classical cadherin XB31alpha1; PIK3CD; XB31alpha

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Human Calsyntenin-1 Antibody
By Anonymous on 08/24/2020
Application: WB Sample Tested: Cell Lysates Species: Human

This antibody could recognize both the full-length and the cleaved N-terminus of endognous Clstn1. In the Clstn1 knockdown sample, both bands clearly disappeared.