Recombinant Human Fibronectin GMP Protein, CF Summary
Fibronectin can also be added to the media to support cell spreading at a concentration of 0.5-50 μg/mL.
Optimal concentrations will need to be determined for individual user applications.
Gln32-Pro1908, with a C-terminal 6-His tag
Produced in an animal component free process (ACFP). Manufactured and tested under current Good Manufacturing Practice (GMP) guidelines.
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.
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.
|Formulation||Lyophilized from a 0.2 μm filtered solution in HEPES, NaCl and Tween®.|
|Reconstitution||Reconstitute at 100 μg/mL in sterile water.|
|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.
1 μg/lane of GMP-grade Recombinant Human Fibronectin (Catalog #4305B-GMP) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR)conditions and visualized by silver staining, showing bands at approximately190 kDa.
Fibronectin (FN) is a large, modular glycoprotein that generates a polymeric fibrillar network in the extracellular matrix (ECM), and forms soluble, disulfide-linked dimeric protomers in plasma and other body fluids (1, 2). Fibronectin is a ligand for many molecules, including fibrin, heparin, chondroitin sulfate, collagen/gelatin, and integrins. It is involved in multiple cellular processes such as cell adhesion/migration, blood clotting, morphogenesis, tissue repair, and cell signaling. Fibronectin functions are mediated by the insoluble polymeric fibrillar network. Conversion of soluble Fibronectin to Fibronectin fibrils in the ECM is initiated by binding to cell surface integrins, resulting in exposure of cryptic epitopes necessary for polymerization (1). Fibronectin is made up of three types of homologous structural motifs termed FN type I, type II, and type III repeats (3-5). Alternative splicing generates multiple isoforms of Fibronectin which may have insertions of extra type III domains (EDA and EDB) or alteration of the type III connecting segment (IIICS) (5). Differential splicing within the IIICS domain determines the presence of CS1 and CS2 sequences, and its sensitivity to proteases (6, 7). The tilt angle between type III domains #9 and #10 (which contains an RGD motif) determines integrin binding affinity, suggesting how structural differences between fibrillar and soluble Fibronectin may influence their function (8). From the N-terminus to the furin cleavage site at amino acid 1908, human Fibronectin shares 92% amino acid sequence identity with mouse and rat Fibronectin.
- Mao, Y. and J.E. Schwarzbauer (2005) Matrix Biol. 24:389.
- Potts, J.R. and I.D. Campbell (1996) Matrix Biol. 15:313.
- Bernard, M.P. et al. (1985) Biochemistry 24:2698.
- Kornblihtt, A.R. et al. (1983) Proc. Natl. Acad. Sci. USA 80:3218.
- Kornblihtt, A.R. et al. (1985) EMBO J. 4:1755.
- Mould, A.P. et al. (1991) J. Biol. Chem. 266:3579.
- Abe, Y. et al. (2005) Biochem. Biophys. Res. Commun. 338:1640.
- Altroff, H. et al. (2004) J. Biol. Chem. 279:55995.
Manufacturing SpecificationsGMP Proteins
R&D Systems, a Bio-Techne Brand's GMP proteins are produced according to relevant sections of the following documents: WHO TRS, No. 822, 1992 Annex 1, Good Manufacturing Practices for Biological Products; USP Chapter 1043, Ancillary Materials for Cell, Gene and Tissue-Engineered Products and USP Chapter 92, Growth Factors and Cytokines Used in Cell Therapy Manufacturing.
R&D Systems' quality focus includes:
- Manufactured and tested under an ISO 9001:2015 and ISO 13485:2016 certified quality system
- Documented processes and QA control of documentation and process changes
- Personnel training programs
- Raw material testing and vendor qualification/monitoring
- Fully validated equipment, processes and test methods
- Equipment calibration schedules using a computerized calibration program
- Facility maintenance, safety programs and pest control
- Material review process for variances
- Monitoring of stability over product shelf-life
R&D Systems strives to provide our customers with the analytical characteristics of each product so that customers may determine whether our products are appropriate for their research. The Certificate of Analysis provided contains the following lot specific information:
- N-terminal amino acid analysis, SDS-PAGE analysis, and endotoxin level (as determined by LAL assay) performed on each bulk QC lot, not on individual bottlings of each QC lot
- Post-bottling lot-specific bioassay results (compliance with an established range) and results of microbial bioburden testing (using broth culture, Sabourand's dextrose and blood agar plates with results reported at 3 days and at 7 days)
- Mycoplasma testing by ribosomal RNA hybridization assay
Additional testing and documentation requested by the customer can be arranged at an additional cost. Testing may include, but is not limited to, USP <61> bioburden testing, positive identity testing, testing for adventitious agents and testing for residual host cell content.
Production records and facilities are available for examination by appropriate personnel on-site at R&D Systems in Minneapolis, Minnesota USA.
R&D Systems sells GMP grade products for preclinical or clinical ex vivo use. They are not for in vivo use. Please read the following End User Terms prior to using this product.
Animal Component-Free Process (ACFP) Manufacturing Conditions
R&D Systems Animal Component-Free Process (ACFP) recombinant proteins are expressed in an animal-free certified Sf 9 insect cell line using dedicated animal-free raw materials and labware. Production and purification procedures use equipment and media that are confirmed animal-free but performed outside our dedicated animal-free laboratories. Every stage of the manufacturing process follows R&D Systems' stringent Standard Operating Procedures (SOPs). The certified Sf 9 insect cell bank has undergone extensive testing to certify the lack of cytopathogens by screening for various viruses, Mycoplasma, and Spiroplasmas using both in vitro and in vivo testing methods.
Please read our complete ACFP Statement
Product Specific Notices
The End User is aware that R&D Systems, Inc. sells GMP products for preclinical or clinical ex vivo use and not for in vivo use. The End User further agrees, as a condition of the sale of R&D Systems' GMP products that: a) the End User will not use this GMP Product in any procedure wherein the product may be directly or indirectly administered to humans, unless the End User has obtained, or prior to their use will have obtained, an Investigational New Drug (IND) exemption from the FDA and will use the product only in accordance with the protocols of such IND and of the Institutional Review Board overseeing the proposed research, or b) the End User will use the products outside of the United States in accordance with the protocols of research approved by the Institutional Review Board or authorized ethics committee and regulatory agencies to which the End User is subject to in their territory.
TERMS AND CONDITIONS
The following limitation applies to R&D Systems' warranty and liability for damages: All products are warranted to meet R&D Systems' published specifications when used under normal laboratory conditions.
R&D SYSTEMS DOES NOT MAKE ANY OTHER WARRANTY OR REPRESENTATION WHATSOEVER, WHETHER EXPRESS OR IMPLIED, WITH RESPECT TO ITS PRODUCTS. IN PARTICULAR, R&D SYSTEMS DOES NOT MAKE ANY WARRANTY OF SUITABILITY, NONINFRINGEMENT, MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE.
NOTWITHSTANDING ANY OTHER PROVISIONS OF THESE TERMS AND/OR ANY OTHER AGREEMENT BETWEEN R&D SYSTEMS AND PURCHASER FOR THE PURCHASE OF THE PRODUCTS, R&D SYSTEMS' TOTAL LIABILITY TO PURCHASER ARISING FROM OR IN RELATION TO THESE TERMS, AN AGREEMENT BETWEEN THE PARTIES OR THE PRODUCTS, WHETHER ARISING IN CONTRACT, TORT OR OTHERWISE SHALL BE LIMITED TO THE TOTAL AMOUNT PAID BY PURCHASER TO R&D SYSTEMS FOR THE APPLICABLE PRODUCTS. IN NO EVENT WILL R&D SYSTEMS BE LIABLE FOR THE COST OF PROCUREMENT OF SUBSTITUTE GOODS.
Full details of R&D Systems' Terms and Conditions of Sale can be found online at: RnDSystems.com/Legal.
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