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优势特色（Features）
- Designed under ISO 9001:2015 and ISO 13485:2016
- Manufactured and QC tested under a GMP compliance factory
- Animal-Free materials
- Beta-lactam materials free
- Batch-to-batch consistency
- Stringent quality control tests
- No animal derived peptone and lactose used in production process
表达区间及表达系统（Source）
GMP Recombinant Human Fibronectin fragment (GMP-FINH18) is expressed from E. coli cells. It contains AA Pro 1361 - Ser 1637 & Ala 1812 - Thr 2107 (Accession # P02751-15).
Predicted N-terminus: Met
Request for sequence
蛋白结构（Molecular Characterization）
This protein carries no "tag".
The protein has a calculated MW of 62.6 kDa. The protein migrates as 60 kDa±3 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE).
内毒素（Endotoxin）
Less than 10 EU/mg by the LAL method.
宿主蛋白残留（Host Cell Protein）
<0.5 ng/µg of protein tested by ELISA.
宿主核酸残留（Host Cell DNA）
<0.02 ng/μg of protein tested by qPCR.
无菌（Sterility）
The sterility testing was performed by membrane filtration method described in CP<1101>, USP<71> and Eur. Ph. 2.6.1.
支原体（Mycoplasma）
Negative.
纯度（Purity）
>95% as determined by SDS-PAGE.
>90% as determined by SEC-HPLC.
制剂（Formulation）
Supplied as 0.2 μm filtered solution in 12.5 mM Citric acid, pH6.2 with protectants.
Contact us for customized product form or formulation.
运输（Shipping）
This product is supplied and shipped with dry ice, please inquire the shipping cost.
存储（Storage）
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- -20°C±10℃ for 3 years under sterile conditions.
产品数据图
电泳（SDS-PAGE）
GMP Recombinant Human Fibronectin fragment on SDS-PAGE under reducing (R) and non-reducing (NR) conditions. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95% (With Star Ribbon Pre-stained Protein Marker).
SEC-HPLC
The purity of GMP Recombinant Human Fibronectin fragment (Cat. No. GMP-FINH18) was greater than 90% as determined by SEC-HPLC.
应用数据（Application Data）
GMP Recombinant Human Fibronectin fragment (Cat. No. GMP-FINH18) could promote mesenchymal stem cell attachment and proliferation in several passages, comparable with Competitor T. The bioactivity of GMP Recombinant Human Fibronectin fragment (Cat. No. GMP-FINH18) is similar to Recombinant Fibronectin fragment, premium grade (Cat. No. FIN-H5116).
GMP Recombinant Human Fibronectin fragment (Cat. No. GMP-FINH18) could maintain the stemness of MSC in several passages, with high expression of MSC markers CD73, CD90 and CD105 and negative expression of HLA-DR, CD34 and CD45. The stemness ability of GMP Recombinant Human Fibronectin fragment (Cat. No. GMP-FINH18) is comparable with Competitor T and similar to Recombinant Fibronectin fragment, premium grade (Cat. No. FIN-H5116).
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背景
Fibronectin (Fn) is a glycoprotein whose size ranges from 230 to 270 kDa and usually exists as a dimer, covalently linked by a pair of disulfide bonds at the C-termini. Each monomer consists of three repeating units: 12 Type I, 2 Type II, and 15–17 Type III domains which combined account for 90% of the FN sequence. The extracellular matrix (ECM) plays a key role as both structural scaffold and regulator of cell signal transduction in tissues. Fibronectin is one of the major ECM proteins in the trabecular meshwork (TM). It is found in the sheath material surrounding the elastin tendons that enter the TM from the ciliary muscle within the ciliary body. In times of ECM assembly and turnover, cells upregulate assembly of the ECM protein, FN. FN is assembled by cells into viscoelastic fibrils that can bind upward of 40 distinct growth factors and cytokines. These fibrils play a key role in assembling a provisional ECM during embryonic development and wound healing. Fibril assembly is also often upregulated during disease states, including cancer and fibrotic diseases.
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