Recombinant Mouse Contactin-1 Protein, CF

Catalog #: 9665-CN Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
9665-CN-100

Recombinant Mouse Contactin-1 Protein Bioactivity

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Summary Product Datasheets Carrier Free Data Images Reconstitution Calculator Background Related Research Areas

Recombinant Mouse Contactin-1 Protein, CF Summary

Product Specifications

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.

Activity

Measured by its binding ability in a functional ELISA. When Recombinant Mouse Contactin‑1 is coated at 1 µg/mL, 100 μL/well, Recombinant Human NrCAM Fc Chimera (Catalog # 2034-NR) binds with an ED₅₀ of 0.03-0.18 μg/mL.

Source

Mouse myeloma cell line, NS0-derived mouse Contactin-1 protein

Mouse Contactin-1 (Asp21-Thr999) Accession # AAH66864	HPGGGSGGGSGGGS	HHHHHH
N-terminus		C-terminus

Accession #

AAH66864

N-terminal Sequence
Analysis

Asp21

Predicted Molecular Mass

111 kDa

SDS-PAGE

119-135 kDa, reducing conditions

Product Datasheets

9665-CN

Product Datasheet

COA

SDS

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.

9665-CN

Formulation	Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution	Reconstitute at 400 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.

Scientific Data

Bioactivity

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When Recombinant Mouse Contactin-1 (Catalog # 9665-CN) is immobilized at 1 µg/mL (100 µL/well), Recombinant Human NrCAM Fc Chimera (Catalog # 2034-NR) binds with an ED₅₀ of 0.03-0.18 µg/mL.

Reconstitution Calculator

Background: Contactin-1

Contactin-1 (CNTN1), also known as F3 and F11, is an approximately 135 kDa GPI-anchored member of the Contactin family of neuronal adhesion glycoproteins (1). Mature mouse Contactin-1 contains 6 Ig-like domains and 4 fibronectin type III-like domains, and it shares 96% and 100% amino acid (aa) sequence identity with human and rat Contactin-1, respectively (2, 3). Alternative splicing generates an isoform with an 11 aa deletion N-terminal to the first Ig-like domain and another isoform that is substituted and truncated following the sixth Ig-like domain. In humans, Contactin-1 is critical in the development of the central nervous system, and a soluble form of Contactin-1 is released into the cerebrospinal fluid (4). Contactin-1 is expressed on neurons and their precursors at sites of glial cell contact with neuronal processes (5-7). Within paranodal regions of the axon, Contactin-1 associates in cis with the transmembrane protein Caspr (7). It binds in trans to other neuronal adhesion proteins (e.g. NrCAM, Neurofascin, Tenascin R), the phosphatase PTPRZ, and the chondroitin sulfate CS-E (8-13). It also binds and activates both Notch-1 and Notch-2 (14). In cancer, Contactin-1 is up-regulated by VEGF-C and is required for VEGF R3/Flt-4 induced tumor cell invasion and metastasis (15). In humans, mutations in CNTN1 cause a familial form of lethal congenital myopathy (16).

References