IGFBP7 active protein

IGFBP7 Protein, Human, Recombinant (His Tag)

Cat. Num. AAA8121274

• Gene Names: IGFBP7; AGM; PSF; TAF; FSTL2; IBP-7; MAC25; IGFBP-7; RAMSVPS; IGFBP-7v; IGFBPRP1
• Purity: >92% as determined by SDS-PAGE
• Synonyms: IGFBP7; IGFBP7 Protein; Human; Recombinant (His Tag); Human IGFBP7/IBP-7 Protein (His Tag); AGM Protein; FSTL2 Protein; IBP-7 Protein; IGFBP-7 Protein; IGFBP-7v Protein; IGFBPRP1 Protein; MAC25 Protein; PSF Protein; RAMSVPS Protein; TAF Protein; insulin-like growth factor binding protein 7; IGFBP7 active protein

• Host: HEK293 Cells
• Purity/Purification: >92% as determined by SDS-PAGE
• Form/Format: Lyophilized from sterile PBS, pH7.4. Normally 5%-8% trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.
• Sequence: Asp30-Leu282

• Species: Human
• Activity: 1. Measured by its ability to bind biotinylated recombinant human CCL21 in a functional ELISA.; 2. Measured by its ability to bind biotinylated recombinant human VEGF165 in a functional ELISA.; 3. Measured by its ability to bind biotinylated recombinant human IGF2 in a functional ELISA.
• Endotoxin: <1.0EU per ug of the protein as determined by the LAL method
• Predicted N Terminal: His
• Tag: N-His
• Protein Construction: A DNA sequence encoding the human IGFBP7 (Q16270)(Asp 30-Leu 282) was fused with a polyhistidine tag at the N-terminus.
• Reconstitution: A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
• Preparation and Storage: Samples are stable for up to twelve months from date of receipt at -20 degree C to -80 degree C. Store it under sterile conditions at -20 degree C to -80 degree C. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.; In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature. Bulk packages of recombinant proteins are provided as frozen liquid.; They are shipped out with blue ice.

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Related Product Information for IGFBP7 active protein

Background: Insulin-like growth factor-binding protein 7 (IGFBP7) is a member of the IGFBP family. It has been identified in colorectal adenocarcinoma (CRC) cell lines. The Insulin-like growth factor-binding protein also known as IGFBP serves as a carrier protein for Insulin-like growth factor 1. IGFBPs are distinct but are sharing regions with strong homology. All members of the IGFBP family bind IGF-I and IGF-II with about equal affinity. Insulin-like growth factor (IGF) binding proteins (IGFBPs) have been shown to either inhibit or enhance the action of IGF or act in an IGF-independent manner in the prostate. IGFBP7 could inhibit cell growth, decrease soft agar colony formation activity, and induce apoptosis in RKO and SW620 cells. There is mounting evidence that the structure of the IGFBP proteins plays a key role in the regulation of IGF bioavailability, by modulating its molecular size, capillary membrane permeability, target tissue specificity, cell membrane adherence, and IGF affinity.

References

Oh Y, et al. (1996) Synthesis and characterization of insulin-like growth factor-binding protein (IGFBP)-7. Recombinant human mac25 protein specifically binds IGF-I and -II. J Biol Chem. 271(48): 30322-5.Wilson EM, et al. (1997) Generation and characterization of an IGFBP-7 antibody: identification of 31kD IGFBP-7 in human biological fluids and Hs578T human breast cancer conditioned media. J Clin Endocrinol Metab. 82(4): 1301-3.Lin J, et al. (2007) Methylation patterns of IGFBP7 in colon cancer cell lines are associated with levels of gene expression. J Pathol. 212(1): 83-90.

NCBI and Uniprot Product Information

• NCBI GI #: 23396609
• NCBI GeneID: 3490
• UniProt Accession #: Q16270; Q07822; Q53YE6; Q9UCA8; B4E1N2; B7Z9W7
• Molecular Weight: 282
• NCBI Official Full Name: Insulin-like growth factor-binding protein 7
• NCBI Official Synonym Full Names: insulin-like growth factor binding protein 7
• NCBI Official Symbol: IGFBP7
• NCBI Official Synonym Symbols: AGM; PSF; TAF; FSTL2; IBP-7; MAC25; IGFBP-7; RAMSVPS; IGFBP-7v; IGFBPRP1
• NCBI Protein Information: insulin-like growth factor-binding protein 7; IGFBP-rP1; angiomodulin; IGF-binding protein 7; PGI2-stimulating factor; tumor-derived adhesion factor; prostacyclin-stimulating factor
• UniProt Protein Name: Insulin-like growth factor-binding protein 7
• Protein Family: Insulin-like growth factor-binding protein
• UniProt Gene Name: IGFBP7
• UniProt Synonym Gene Names: MAC25; PSF; IBP-7; IGF-binding protein 7; IGFBP-7; TAF
• UniProt Entry Name: IBP7_HUMAN

NCBI Description

This gene encodes a member of the insulin-like growth factor (IGF)-binding protein (IGFBP) family. IGFBPs bind IGFs with high affinity, and regulate IGF availability in body fluids and tissues and modulate IGF binding to its receptors. This protein binds IGF-I and IGF-II with relatively low affinity, and belongs to a subfamily of low-affinity IGFBPs. It also stimulates prostacyclin production and cell adhesion. Alternatively spliced transcript variants encoding different isoforms have been described for this gene, and one variant has been associated with retinal arterial macroaneurysm (PMID:21835307). [provided by RefSeq, Dec 2011]

Uniprot Description

IGFBP7: Binds IGF-I and IGF-II with a relatively low affinity. Stimulates prostacyclin (PGI2) production. Stimulates cell adhesion. Defects in IGFBP7 are the cause of retinal arterial macroaneurysm with supravalvular pulmonic stenosis (RAMSVPS). RAMSVPS is an autosomal recessive condition characterized by the bilateral appearance of 'beading' along the major retinal arterial trunks, with the subsequent formation of macroaneurysms. Affected individuals also have supravalvular pulmonic stenosis, often requiring surgical correction.

Protein type: Cell cycle regulation; Cell adhesion; Secreted, signal peptide; Secreted

Chromosomal Location of Human Ortholog: 4q12

Cellular Component: extracellular matrix; extracellular space; extracellular region

Molecular Function: insulin-like growth factor binding; protein binding

Biological Process: negative regulation of cell proliferation; response to retinoic acid; response to cortisol stimulus; response to heat; regulation of steroid biosynthetic process; regulation of cell growth; cell adhesion; inner ear development; embryo implantation; cellular response to hormone stimulus

Disease: Retinal Arterial Macroaneurysm With Supravalvular Pulmonic Stenosis