Angiopoietin 1 Active Protein | ANGPT1 active protein

Angiopoietin 1 protein

Cat. Num. AAA539452

• Gene Names: ANGPT1; AGP1; AGPT; ANG1
• Applications: User optimized
• Purity: > 95% pure
• Synonyms: Angiopoietin 1; Angiopoietin 1 protein; AGPT protein; ANGPT 1 protein; ANG1 protein; ANG 1 protein; KIAA0003 protein; ANGPT1 protein; AGP1 protein; AGP 1 protein; Angiopoietin -1; Angiopoietin -1 protein; Angiopoietin1 protein; ANGPT1 active protein

• Host: Human
• Purity/Purification: > 95% pure
• Form/Format: Supplied as a lyophilized powder.
• Sequence Length: 498

• Applicable Applications for ANGPT1 active protein: User optimized
• Protein Type: Recombinant
• Biological Significance: Angiopoietin-1 (Ang-1) is a secreted ligand for Tie-2, a tyrosine-kinase receptor expressed primarily on vascular endothelial cells and early hematopoietic cells. Ang-1/ Tie-2 signaling promotes angiogenesis during the development, remodeling, and repair of the vascular system. Transgenic mice lacking expression of either Ang-1 or Tie-2 fail to develop a fully functional cardiovascular system and die before birth.
• Bioactivity: Determined by the dose-dependent stimulation of the proliferation of human umbilical vein endothelial cells (HUVEC).
• Endotoxin Levels: Endotoxin level is less than 0.1 ng per ug (1 EU/ug).
• Expression System: HeLa cells
• Preparation and Storage: Store at 4 degree C until reconstitution. Following reconstitution aliquot and freeze at -20 degree C for long term storage. Avoid repeated freeze/thaw cycles.

Related Product Information for ANGPT1 active protein

Purified recombinant Human Angiopoietin 1 protein

Product Categories/Family for ANGPT1 active protein

Differentiation & Development

NCBI and Uniprot Product Information

• NCBI GI #: 20532340
• NCBI GeneID: 284
• NCBI Accession #: NP_001137.2
• NCBI GenBank Nucleotide #: NM_001146.3
• UniProt Accession #: Q15389; Q5HYA0
• Molecular Weight: 57,456 Da
• NCBI Official Full Name: angiopoietin-1 isoform 1
• NCBI Official Synonym Full Names: angiopoietin 1
• NCBI Official Symbol: ANGPT1
• NCBI Official Synonym Symbols: AGP1; AGPT; ANG1
• NCBI Protein Information: angiopoietin-1
• UniProt Protein Name: Angiopoietin-1
• Protein Family: Angiopoietin
• UniProt Gene Name: ANGPT1
• UniProt Synonym Gene Names: KIAA0003; ANG-1
• UniProt Entry Name: ANGP1_HUMAN

NCBI Description

Angiopoietins are proteins with important roles in vascular development and angiogenesis. All angiopoietins bind with similar affinity to an endothelial cell-specific tyrosine-protein kinase receptor. The protein encoded by this gene is a secreted glycoprotein that activates the receptor by inducing its tyrosine phosphorylation. It plays a critical role in mediating reciprocal interactions between the endothelium and surrounding matrix and mesenchyme and inhibits endothelial permeability. The protein also contributes to blood vessel maturation and stability, and may be involved in early development of the heart. Alternative splicing results in multiple transcript variants encoding distinct isoforms.[provided by RefSeq, Dec 2010]

Uniprot Description

ANGPT1: Binds and activates TEK/TIE2 receptor by inducing its dimerization and tyrosine phosphorylation. Plays an important role in the regulation of angiogenesis, endothelial cell survival, proliferation, migration, adhesion and cell spreading, reorganization of the actin cytoskeleton, but also maintenance of vascular quiescence. Required for normal angiogenesis and heart development during embryogenesis. After birth, activates or inhibits angiogenesis, depending on the context. Inhibits angiogenesis and promotes vascular stability in quiescent vessels, where endothelial cells have tight contacts. In quiescent vessels, ANGPT1 oligomers recruit TEK to cell-cell contacts, forming complexes with TEK molecules from adjoining cells, and this leads to preferential activation of phosphatidylinositol 3-kinase and the AKT1 signaling cascades. In migrating endothelial cells that lack cell-cell adhesions, ANGT1 recruits TEK to contacts with the extracellular matrix, leading to the formation of focal adhesion complexes, activation of PTK2/FAK and of the downstream kinases MAPK1/ERK2 and MAPK3/ERK1, and ultimately to the stimulation of sprouting angiogenesis. Mediates blood vessel maturation/stability. Implicated in endothelial developmental processes later and distinct from that of VEGF. Appears to play a crucial role in mediating reciprocal interactions between the endothelium and surrounding matrix and mesenchyme.

Protein type: Secreted, signal peptide; Secreted

Chromosomal Location of Human Ortholog: 8q23.1

Cellular Component: extracellular space; microvillus; plasma membrane; extracellular region; lipid raft

Molecular Function: receptor tyrosine kinase binding

Biological Process: transmembrane receptor protein tyrosine kinase activation (dimerization); positive regulation of cell adhesion; positive regulation of receptor internalization; negative regulation of protein import into nucleus; negative regulation of cell adhesion; negative regulation of protein amino acid phosphorylation; positive chemotaxis; hemopoiesis; negative regulation of neuron apoptosis; regulation of I-kappaB kinase/NF-kappaB cascade; cell differentiation; regulation of endothelial cell proliferation; Tie receptor signaling pathway; in utero embryonic development; positive regulation of blood vessel endothelial cell migration; positive regulation of peptidyl-serine phosphorylation; cell-substrate adhesion; negative regulation of cytokine secretion during immune response; positive regulation of phosphoinositide 3-kinase cascade; positive regulation of protein kinase B signaling cascade; positive regulation of peptidyl-tyrosine phosphorylation; heparin biosynthetic process; positive regulation of protein ubiquitination; regulation of protein binding; negative regulation of vascular permeability; regulation of tumor necrosis factor production; sprouting angiogenesis; regulation of satellite cell proliferation; blood coagulation; leukocyte migration; negative regulation of apoptosis