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SRP3066

Sigma-Aldrich

IGF-Binding Protein 7 human

recombinant, expressed in E. coli, ≥98% (SDS-PAGE), ≥98% (HPLC)

Synonym(s):

PGI2-stimulating factor, PSF, Prostacyclin-stimulating factor, Tumor-derived adhesion factor (TAF), IBP-7, IGF binding protein related protein-1 (IGFBPrP1), Mac25

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About This Item

UNSPSC Code:
51111800
NACRES:
NA.32

biological source

human

recombinant

expressed in E. coli

Assay

≥98% (HPLC)
≥98% (SDS-PAGE)

form

lyophilized

mol wt

26.4 kDa

packaging

pkg of 25 μg

impurities

<0.1 EU/μg endotoxin, tested

color

white to off-white

UniProt accession no.

shipped in

wet ice

storage temp.

−20°C

Gene Information

human ... IGFBP7(3490)

General description

IGFBP7 (insulin-like growth factor-binding protein 7) is from the IGFBP superfamily and is widely expressed in tissues. It contains 11 cysteines, a heparin-binding site, a Kazal-type trypsin inhibitor domain and a carboxyl-terminal immunoglobulin-like type C repeat. The IGFBP7 gene is mapped to human chromosome 4q12.

Biochem/physiol Actions

IGFBP7 (insulin-like growth factor-binding protein 7) works as a tumor suppressor as well as an oncogene by controlling cell proliferation, cell attachment, apoptosis and angiogenesis. It is also involved in TGFβ (transforming growth factor β) signal pathway. IGFBP7 also interferes with the insulin pathway and is associated with the development of diabetes as well as cardiovascular diseases.IGFBP7 binds weakly to IGFs (insulin like growth factors) and strongly to insulin. It mainly participates in IGF-independent pathways.

Sequence

MSSSDTCGPC EPASCPPLPP LGCLLGETRD ACGCCPMCAR GEGEPCGGGG AGRGYCAPGM ECVKSRKRRK GKAGAAAGGP GVSGVCVCKS RYPVCGSDGT TYPSGCQLRA ASQRAESRGE KAITQVSKGT CEQGPSIVTP PKDIWNVTGA QVYLSCEVIG IPTPVLIWNK VKRGHYGVQR TELLPGDRDN LAIQTRGGPE KHEVTGWVLV SPLSKEDAGE YECHASNSQG QASASAKITV VDALHEIPVK KGEGAEL

Physical form

Lyophilized from 10 mM Sodium Phosphate, pH 6.8.

Reconstitution

Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20°C to -80°C.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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Cynthia C Sprenger et al.
Oncogene, 21(1), 140-147 (2002-01-16)
In the present study, we examined the effects of over-expression of the potential tumor suppressor gene IGFBP-rP1/mac25 on cell-cycle kinetics in prostate cancer cells. The majority of the high expressing IGFBP-rP1/mac25 cell population was located in the G1 and sub-G0/G1
K L Haugk et al.
Endocrinology, 141(1), 100-110 (1999-12-30)
Skeletal myogenic cells respond to the insulin-like growth factors (IGF-I and IGF-II) by differentiating or proliferating, which are mutually exclusive pathways. What determines which of these responses to IGF skeletal myoblast undergo is unclear. IGF-binding protein-related protein 1 (IGFBP-rP1) is
Yi Liu et al.
Scientific reports, 5, 10227-10227 (2015-05-20)
Metabolic syndrome (MetS), one of the major public health concerns, is regarded as the "common soil" of incidence of common chronic diseases and may increase the risk of type 2 diabetes. The predominant underlying mechanism of MetS is insulin resistance
Overexpressed Skp2 within 5p amplification detected by array-based comparative genomic hybridization is associated with poor prognosis of glioblastomas.
Saigusa K, et al.
Cancer Science, 96, 676-676 (2005)
Heather-Marie P Wilson et al.
Cell growth & differentiation : the molecular biology journal of the American Association for Cancer Research, 13(5), 205-213 (2002-06-18)
Elevated insulin-like growth factor binding protein-related protein 1 (IGFBP-rP1) mRNA in senescent human mammary epithelial cells suggested that the IGFBP-3 gene product may inhibit cell proliferation. To test this hypothesis, we used a retroviral vector to express IGFBP-rP1 cDNA in

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