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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
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.
产品数据图
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）
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.
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背景
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.
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