膜杰作
Star Staining
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
表达区间及表达系统（Source）
GMP Human VCAM-1 Protein, Fc Tag (GMP-VC1H25) is expressed from human 293 cells (HEK293). It contains AA Phe 25 - Glu 698 (Accession # P19320-1).
Predicted N-terminus: Phe 25
Request for sequence
蛋白结构（Molecular Characterization）
This protein carries a human IgG1 Fc tag at the C-terminus.
The protein has a calculated MW of 100.7 kDa. The protein migrates as 126 kDa±5 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
内毒素（Endotoxin）
Less than 10 EU/mg by the LAL method.
蛋白A残留（Protein A）
<5 ppm of protein tested by ELISA.
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.
制剂（Formulation）
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with protectants.
Contact us for customized product form or formulation.
运输（Shipping）
This product is supplied and shipped with blue ice, please inquire the shipping cost.
存储（Storage）
Upon receipt, store it immediately at -20°C or lower for long term storage.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- -20°C to -70°C for 5 years in lyophilized state;
- -70°C for 12 months under sterile conditions after reconstitution.
质量管理控制体系（QMS）
电泳（SDS-PAGE）
GMP Human VCAM-1 Protein, Fc Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95% (With Star Ribbon Pre-stained Protein Marker).
活性（Bioactivity）-ELISA
Immobilized GMP Human VCAM-1 Protein, Fc Tag (Cat. No. GMP-VC1H25) at 5 μg/mL (100 μL/well) can bind Biotinylated Human ITGA4&ITGB1 Heterodimer Protein, His,Avitag&Tag Free (Cat. No. IT1-H82W1) with a linear range of 2-63 ng/mL (Routinely tested).
Protocol
活性（Bioactivity）-SPR
GMP Human VCAM-1 Protein, Fc Tag (Cat. No. GMP-VC1H25) captured on Protein A Chip can bind Human ITGA4&ITGB1 Heterodimer Protein, His Tag&Tag Free (Cat. No. IT1-H52W1) with an affinity constant between 1.00 nM - 50.0 nM as determined in a SPR assay (Biacore 8K) (QC tested).
Protocol
应用数据（Application Data）
CD34+ CD45+ hematopoietic cells were seeded on GMP Human DLL4 Protein, Fc Tag (Flagship) (Cat. No. GMP-DL4H27) and GMP Human VCAM-1 Protein, Fc Tag (Cat. No. GMP-VC1H25) coated plates and differentiated for 14 days, then flow cytometry was used to detect the expression of T-cell progenitor markers, CD5 and CD7. GMP Human DLL4 Protein, Fc Tag (Flagship) (Cat. No. GMP-DL4H27) and GMP Human VCAM-1 Protein, Fc Tag (Cat. No. GMP-VC1H25) together with other growth factors could induce the high percentage of CD7+ and CD5+ CD7+ T-cell progenitors formation.
The Recombinant Fibronectin fragment, premium grade (Cat. No. FIN-H5116) combined with GMP Human DLL4 Protein, Fc Tag (Cat. No. GMP-DL4H28), GMP Human VCAM-1 Protein, Fc Tag (Cat. No. GMP-VC1H25) coating on the plate could efficiently induce hematopoietic stem cells differentiation to NK cells, with high expression of CD56+ CD3-.
稳定性（Stability）
The Cell based assay shows that GMP Human VCAM-1 Protein, Fc Tag (Cat. No. GMP-VC1H25) is stable at 37℃ for 24 hours.
The SPR based assay shows that GMP Human VCAM-1 Protein, Fc Tag (Cat. No. GMP-VC1H25) is stable at 4℃ for 180 days.
The Cell based assay shows that GMP Human VCAM-1 Protein, Fc Tag (Cat. No. GMP-VC1H25) is stable after freezing and thawing 3 times.
The SPR based assay shows batch-to-batch consistency between Acro's GMP and PG VCAM-1.
MANUFACTURING SPECIFICATIONS
ACROBiosystems GMP grade products are produced under a quality management system and in compliance with relevant guidelines: Ph. Eur General Chapter 5.2.12 Raw materials of biological origin for the production of cell-based and gene therapy medicinal products; USP <92> Growth Factors and Cytokines Used in Cell Therapy Manufacturing; USP <1043> Ancillary Materials for Cell, Gene, and Tissue-Engineered Products; ISO/TS 20399-1:2018, Biotechnology - Ancillary Materials Present During the Production of Cellular Therapeutic Products.
ACROBiosystems Quality Management System Contents：
- Designed under ISO 9001:2015 and ISO 13485:2016, Manufactured and QC tested under a GMP compliance factory.
- Animal-Free materials
- Materials purchased from the approved suppliers by QA
- ISO 5 clean rooms and automatic filling equipment
- Qualified personnel
- Quality-related documents review and approve by QA
- Fully batch production and control records
- Equipment maintenance and calibration
- Validation of analytical procedures
- Stability studies conducted
- Comprehensive regulatory support files
Request For Regulatory Support Files（RSF） Request For DMF
ACROBiosystems provide rigorous quality control tests (fully validated equipment, processes and test methods) on our GMP grade products to ensure that they meet stringent standards in terms of purity, safety, activity and inter-batch stability, and each bulk QC lot mainly contains the following specific information:
- SDS-PAGE
- Protein content
- Endotoxin level
- Residual Host Cell DNA content
- Residual Host Cell Protein content
- Biological activity analysis
- Microbial testing
- Mycoplasma testing
- In vitro virus assay
- Residual moisture
- Batch-to-batch consistency
DISCLAIMER
ACROBiosystems GMP grade products are designed for research, manufacturing use or ex vivo use. CAUTION: Not intended for direct human use.
TERMS AND CONDITIONS
All products are warranted to meet ACROBiosystems Inc.’s (“ACRO”) published specifications when used under normal laboratory conditions.
ACRO DOES NOT MAKE ANY OTHER WARRANTY OR REPRESENTATION WHATSOEVER, WHETHER EXPRESS OR IMPLIED, WITH RESPECT TO ITS PRODUCTS. IN PARTICULAR, ACRO DOES NOT MAKE ANY WARRANTY OF SUITABILITY, NONINFRINGEMENT, MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE.
NOT WITH STANDING ANY OTHER PROVISIONS OF THESE TERMS AND/OR ANY OTHER AGREEMENT BETWEEN ACRO AND PURCHASER FOR THE PURCAHSE OF THE PRODUCTS, ACRO’S 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 ACRO FOR THE RELEVANT PRODUCTS. IN NO EVENT WILL ACRO BE LIABLE FOR THE COST OF PROCUREMENT OF SUBSTITUTE GOODS.
END USER TERMS OF USE OF PRODUCT
The following terms are offered to you upon your acceptance of these End User Terms of Use of Product. By using this product, you indicate your acknowledgment and agreement to these End User Terms of Use of Product. If you do not agree to be bound by and comply with all of the provisions of these End User Terms of Use of Product, you should contact your supplier of the product and make arrangements to return the product.
The End User is aware that ACROBiosystems Inc. and its affiliate (“ACRO”) sell GMP grade products designed for research, manufacturing use or ex vivo use and not intended for human in vivo applications. The End User further agrees, as a condition of the sales of ACRO’s GMP grade products that: a) the End User will not use this GMP grade 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 applicable review board or authorized ethics committee and regulatory agencies to which the End User is subject to in their territory.
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背景（Background）
Vascular cell adhesion protein 1 (VCAM1) is also known as CD106, INCAM-100 and L1CAM, is a cell surface sialoglycoprotein belonging to the immunoglobulin superfamily. VCAM1 / CD106 contains 7 Ig-like C2-type (immunoglobulin-like) domains. CD106 / VCAM-1 is expressed on inflammed vascular endothelium, as well as on macrophage-like and dendritic cell types in both normal and inflammed tissue. L1CAM / VCAM-1 is Important in cell-cell recognition and appears to function in leukocyte-endothelial cell adhesion. CD106 / VCAM1 interacts with the beta-1 integrin VLA4 on leukocytes, and mediates both adhesion and signal transduction. The VCAM1 / VLA4 interaction may play a pathophysiologic role both in immune responses and in leukocyte emigration to sites of inflammation. INCAM-100 / VCAM1 binds to ECMV-D capsid proteins and acts as a receptor for this virus.
