Soluble, stable and more potent Ang-1 variant.
Soluble, stable and more potent Ang-1 variant.
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SDS-PAGE analysis of ALX-201-314: Lane 1: MW Marker, Lane 2: 1µg of COMP (rat):Angiopoietin-1 (human), (recombinant) protein.

Figure 1: COMP (rat):Angiopoietin-1 (human) (rec.) (Prod. No. ALX-201-314) forms mainly pentameric structures. Method: Glycerol spraying/low angle rotary metal-shadowed specimens were imaged by transmission electron microscopy.”””,COMP (rat):Angiopoietin-1 (human)

Structural scheme of ALX-201-314: Produced in CHO cells. The fibrinogen-like domain (aa 284-498) of human Ang-1 (angiopoietin-1) is fused at the N-terminus to the coiled-coil domain of rat COMP (cartilage oligomeric matrix protein) and to a FLAG®-tag.

Figure 2: COMP (rat):Angiopoietin-1 (human) (rec.) (Prod. No. ALX-201-314) induces phosphorylation of Tie-2 in human umbilical vein endothelial cells.Method: Serum-starved human umbilical vein endothelial cells were treated with 200ng/ml of BSA (Co) or 200ng/ml of COMP:Angiopoietin-1 for 15 min. The phosporylation of Tie-2 (phospho-Tie-2) was measured after immunoprecipitation.”””,COMP (rat):Angiopoietin-1 (human)




Product Details
Alternative Name |
COMP:Ang-1 |
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Biological Activity |
Induces phosphorylation of Tie-2 in primary cultured human and mouse vascular endothelial cells. More potent than native Ang-1. |
Concentration |
~0.2-0.4 mg/mL(Please refer to Certificate of Analysis for lot-specific concentration.) |
Endotoxin Content |
<0.1EU/µg protein (LAL test; BioWhittaker) |
Formulation |
Liquid. 0.2µm-filtered solution in PBS containing 0.01% CHAPS. |
Purity |
≥90% (SDS-PAGE) |
Source |
Produced in CHO cells. The fibrinogen-like domain (aa 284-498) of human Ang-1 (angiopoietin-1) is fused at the N-terminus to the coiled-coil domain of rat COMP (cartilage oligomeric matrix protein) and to a FLAG®-tag. |
Specificity |
Binds to human Tie-2. |
Technical Info / Product Notes |
FLAG is a registered trademark of Sigma-Aldrich Co. |
UniProt ID |
Q15389 (human Angiopoietin-1), P35444 (rat COMP) |
Handling & Storage
Use/Stability |
Working aliquots are stable for up to 3 months when stored at -80°C. |
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Handling |
Avoid freeze/thaw cycles. After opening, prepare aliquots and store at -80°C. |
Long Term Storage |
-80°C |
Shipping |
Dry Ice |
Regulatory Status |
RUO – Research Use Only |
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- Akt1-dependent expression of angiopoietin 1 and 2 in vascular smooth muscle cells leads to vascular stabilization: J.M. Ha, et al.; Exp. Mol. Med. 54, 1133 (2022), Abstract
- Novel TIE-2 inhibitor BAY-826 displays in vivo efficacy in experimental syngeneic murine glioma models: H. Schneider, et al.; J. Neurochem. 140, 170 (2017), Abstract
- Angiopoietin-1 deficiency increases tumor metastasis in mice: I.P. Michael, et al.; BMC Cancer 17, 539 (2017), Abstract — Full Text
- COMP-Ang1 prevents periodontitic damages and enhances mandible bone growth in an experimental animal model: G. Bhattarai, et al.; Bone 92, 168 (2016), Abstract
- COMP-Ang1 enhances DNA synthesis and cell cycle progression in human periodontal ligament cells via Tie2-mediated phosphorylation of PI3K/Akt and MAPKs: S.S. Lim, et al.; Mol. Cell. Biochem. 416, 157 (2016), Abstract
- Cartilage oligomeric matrix protein enhances the vascularization of acellular nerves: W.L. Cui, et al.; Neural Regen. Res. 11, 512 (2016), Abstract — Full Text
- Cartilage Oligomeric Matrix Protein Angiopoeitin-1 Provides Benefits During Nerve Regeneration In Vivo and In Vitro: L. Qiu, et al.; Ann. Biomed. Eng. 43, 2924 (2015), Abstract — Full Text
- Effects of Angiopoietin-1 on Hemorrhagic Transformation and Cerebral Edema after Tissue Plasminogen Activator Treatment for Ischemic Stroke in Rats: K. Kawamura, et al.; Plos One 9, e98639 (2014), Abstract — Full Text
- Angiopoietin-1 promotes LYVE-1-positive lymphatic vessel formation: T. Morisada, et al.; Blood 105, 4649 (2005), Abstract
- Multiple angiopoietin recombinant proteins activate the Tie1 receptor tyrosine kinase and promote its interaction with Tie2: P. Saharinen, et al.; J. Cell Biol. 169, 239 (2005), Abstract
- COMP-Ang1: a designed angiopoietin-1 variant with nonleaky angiogenic activity: C.H. Cho, et al.; PNAS 101, 5547 (2004), Abstract — Full Text
- Designed angiopoietin-1 variant, COMP-Ang1, protects against radiation-induced endothelial cell apoptosis: C.H. Cho, et al.; PNAS 101, 5553 (2004), Abstract — Full Text
Datasheet, Manuals, SDS & CofA
Manuals And Inserts
Certificate of Analysis
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SDS
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