Source	Mouse myeloma cell line, NS0-derived mouse OCAM/NCAM2 protein Met1-Asn697, with a C-terminal 6-His tag
Purity	>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin level	<0.10 EU per 1 μg of the protein by the LAL method.
N-terminal sequence Analysis	Leu20
Predicted Molecular Mass	76.8 kDa
SDS-PAGE	95-110 kDa, under reducing conditions
Activity	Measured by the ability of the immobilized protein to support the adhesion of T47D human breast cancer cells. The ED₅₀ for this effect is 0.6-3.6 μg/mL.

Recombinant Mouse OCAM/NCAM2 His-tag Protein, CF Scientific Data Examples

	Recombinant Mouse OCAM/NCAM2 His-tag Protein Bioactivity Immobilized Recombinant Mouse OCAM/NCAM2 His-tag (Catalog # 10154-CM) supports the adhesion of T47D human breast cancer cells. The ED₅₀ for this effect is 0.6-3.6 μg/mL.
	Recombinant Mouse OCAM/NCAM2 His-tag Protein SDS-PAGE 2 μg/lane of Recombinant Mouse OCAM/NCAM2 His-tag (Catalog # 10154-CM) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 95-110 kDa.

Formulation, Preparation and Storage

Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.

10154-CM

Formulation	Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution	Reconstitute at 500 μg/mL in PBS.
Shipping	The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
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. 3 months, -20 to -70 °C under sterile conditions after reconstitution.

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Background: OCAM/NCAM2

OCAM (olfactory cell adhesion molecule), also known as NCAM2 (neural cell adhesion molecule 2) and RNCAM (Rb‑8 neural cell adhesion molecule) is an approximately 100 kDa type I transmembrane glycoprotein belonging to the NCAM family within the immunoglobulin superfamily (1‑5). OCAM dimerizes and participates in homophilic adhesion, but unlike NCAM1/CD56, it is not polysialic acid‑glycosylated, and does not participate in heparin sulfate binding or heterophilic adhesion (2). The 837 amino acid (aa) form of human or mouse OCAM contains a 19 aa signal sequence, a 678 aa extracellular domain (ECD) with five Ig‑like C2‑type domains and two fibronectin type III domains, a transmembrane domain and a 119 aa cytoplasmic domain (2‑4). The first two Ig‑like domains mediate homodimer formation in trans (6). In mouse, a glycosyl phosphatidylinositol‑linked form may show differential expression and function on olfactory axons (1‑3, 7). The ECD of mouse OCAM shares 93%, 98% and 92% aa sequence identity with human, rat, and bovine OCAM, respectively. OCAM is expressed by a subset of axons in the olfactory, vomeronasal, and retrosplenial cortex in a zone‑specific manner (1‑3, 7‑9). It is thought to be important for organization of axons and dendrites and segregation of axodendritic and dendrodendritic synapses within glomeruli (1, 7, 10, 11). Because OCAM is encoded on chromosome 21 in humans, it is implicated in neurological abnormalities in Down Syndrome (trisomy 21) (1, 3, 4). It may also be implicated in development of autism and Alzheimer's disease, and over‑expressed in some breast and prostate cancers (1, 5).

Item	Value
References	Winther, M. et al. (2012) Int. J. Biochem. Cell Biol. 44:441. Yoshihara, Y. et al. (1997) J. Neurosci. 17:5930. Alenius, M. and S. Bohm (1997) J. Biol. Chem. 272:26083. Paoloni-Giacobino, A. et al. (1997) Genomics 43:43. Takahashi, S. et al. (2011) Cancer Sci. 102:808. Kulahin, N. et al. (2011) Structure 19:203. Alenius, M. and S. Bohm (2003) Development 130:917. von Campenhausen, H. et al. (1997) Neuroreport 8:2607. Ichinohe, N. et al. (2003) Eur. J. Neurosci. 18:1764. Walz, A. et al. (2006) Mol. Cell. Neurosci. 32:1. Borisovska, M. et al. (2011) J. Physiol. 589:1927.
Long Name	Opioid-binding and Cell Adhesion Molecule/Neural Cell Adhesion Molecule 2
Entrez Gene IDs	4685 (Human); 17968 (Mouse)
Alternate Names	N-CAM-2, NCAM-2, NCAM2, NCAM21MGC51008, OCAM, RNCAM, Rb-8, neural cell adhesion molecule 2, neural cell adhesion molecule 2 precursor10

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Recombinant Mouse OCAM/NCAM2 His-tag Protein, CF

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