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SRP3064

Sigma-Aldrich

IGF-Binding Protein 4 human

recombinant, expressed in (BTI-Tn-5B1-4) High-5 Insect Cells, ≥98% (SDS-PAGE), ≥98% (HPLC), suitable for cell culture

Sinónimos:

HT29-IGF-BP, IBP-4, colon cancer cell growth inhibitor

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About This Item

Código UNSPSC:
51111800
NACRES:
NA.32

origen biológico

human

recombinante

expressed in (BTI-Tn-5B1-4) High-5 Insect Cells

Ensayo

≥98% (HPLC)
≥98% (SDS-PAGE)

Formulario

lyophilized

mol peso

25.8 kDa

envase

pkg of 20 μg

técnicas

cell culture | mammalian: suitable

impurezas

<0.1 EU/μg endotoxin, tested

color

white to off-white

Nº de acceso UniProt

Condiciones de envío

wet ice

temp. de almacenamiento

−20°C

Información sobre el gen

human ... IGFBP4(3487)

Descripción general

The gene IGFBP4 (insulin-like growth factor-binding protein 4) is mapped to human chromosome 17q21. It belongs to the IGFBP family of proteins. The protein has a IGF (insulin-like growth factor)-binding site and a thyroglobulin type-1 domain. IGFBPs are mainly required to regulate IGFs activities. IGFBP4 can be cleaved by PAPP-A (pregnancy-associated plasma protein-A) in IGF-dependent mechanism.
Recombinant human IGF-BP4 is a 25.7kDa protein consisting of 237 amino acid residues including the IGF-BP domain and thyroglobulin type-I domain.

Aplicación

IGF-Binding Protein 4 human has been used to check the dependency of FSH (follicle-stimulating hormone) action in human Cumulus granulosa cells on IGF-2 (insulin-like growth factor 2).

Acciones bioquímicas o fisiológicas

IGFBP4 (insulin-like growth factor-binding protein 4) suppresses cell proliferation and DNA synthesis and induces cell death. IGFBP4 participates in adipose tissue expandability and interacts with IGF1 (insulin-like growth factor 1). Interaction with IGF1 disrupts mitogenic signaling. IGFBP4 is suggested as a serum biomarker of Lupus Nephritis and is associated with the chronicity of renal pathology in patients. IGFBP4 is also linked with cardiovascular death in type 1 diabetes patients in the absence/presence of nephropathy. It is also linked with the progression of tumors.

Secuencia

DEAIHCPPCS EEKLARCRPP VGCEELVREP GCGCCATCAL GLGMPCGVYT PRCGSGLRCY PPRGVEKPLH TLMHGQGVCM ELAEIEAIQE SLQPSDKDEG DHPNNSFSPC SAHDRRCLQK HFAKIRDRST SGGKMKVNGA PREDARPVPQ GSCQSELHRA LERLAASQSR THEDLYIIPI PNCDRNGNFH PKQCHPALDG QRGKCWCVDR KTGVKLPGGL EPKGELDCHQ LADSFRE

Forma física

Lyophilized from 1x PBS, pH 7.2.

Reconstitución

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.

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable


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A J Ryan et al.
British journal of cancer, 101(2), 278-286 (2009-06-19)
Insulin-like growth factor 1 (IGF1) promotes breast cancer and disease progression. Bioavailability of IGF1 is modulated by IGF-binding proteins (IGFBPs). IGFBP4 inhibits IGF1 activity but cleavage by pregnancy-associated plasma protein-A (PAPP-A) protease releases active IGF1. Expression of IGF pathway components
IGFBP-4 Fragments as Markers of Cardiovascular Mortality in Type 1 Diabetes Patients With and Without Nephropathy.
Hjortebjerg R, et al.
The Journal of Clinical Endocrinology and Metabolism, 100, 3032-3032 (2015)
Insulin-like growth factor binding protein-4 inhibits cell growth, migration and invasion, and downregulates COX-2 expression in A549 lung cancer cells.
Li W, et al.
Cell Biology International, 41, 384-384 (2017)
Control of adipose tissue expandability in response to high fat diet by the insulin-like growth factor-binding protein-4.
Gealekman O, et al.
The Journal of Biological Chemistry, 289, 18327-18327 (2014)
Tianfu Wu et al.
PloS one, 11(3), e0151491-e0151491 (2016-03-29)
Kidney biopsy remains the mainstay of Lupus Nephritis (LN) diagnosis and prognostication. The objective of this study is to identify non-invasive biomarkers that closely parallel renal pathology in LN. Previous reports have demonstrated that serum Insulin-like growth factor binding protein

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