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ChemiSCREEN Human PK1 Prokineticin Receptor Membrane Preparation

品牌
Sigma-Aldrich
货号
HTS074M
规格纯度
Human PK1 / PKR1 GPCR membrane preparation for Radioligand binding Assays & GTPγS binding.
参考价格
10463.8 *本价格含增值税费
促销
数量
-+
产品介绍:

产品说明

一般描述

Full-length human GPR73 cDNA, encoding PK1
Prokineticins, also known as endocrine gland vascular endothelial growth factors (EG-VEGF), are two ~10 kD secreted proteins originally described to mediate angiogenesis and gastrointestinal smooth muscle contraction (Li et al., 2001; LeCouter et al., 2003). Subsequently, prokineticins have been found to mediate central nervous system functions including circadian rhythms and olfactory bulb development (Cheng et al., 2002; Ng et al., 2005). Two Gq-coupled receptors, PK1 and PK2 (also known as GPR73a and GPR73b), mediate cellular responses to prokineticins (Lin et al., 2002). Chemicon′s PK1 membrane preparations are crude membrane preparations made from our proprietary stable recombinant cell lines to ensure high-level of GPCR surface expression; thus, they are ideal HTS tools for screening of antagonists of PK1 interactions and its ligands. The membrane preparations exhibit a Kd of 0.11 nM for [125I]-Mamba Intestinal Toxin-1 (MIT-1). With 0.2 nM [125I]-MIT-1, 2.5 µg/well and 5 µg/well PK1 Membrane Prep typically yield greater than 5-fold signal-to-background ratio.

应用

Radioligand binding assay and GTPγS binding.

生化/生理作用

Protein Target: PK1 / PKR1
GPCR Class: A
Target Sub-Family: Prokineticin

质量



Signal:background and specific binding values obtained in a competition binding assay with varying amounts of PK1 membrane prep:

5 µg/well2.5 µg/well
Signal:Background 6 6.4
Specific Binding (cpm) 3166 1798


SPECIFICATIONS: 1 unit = 5 µg
Bmax for [125I] MIT-1 binding: 0.58 pmol/mg protein;
Kd for [125I] MIT-1 binding: ~ 0.11 nM

产品规格

Inucbation Conditions
Membranes are mixed with radioactive ligand and unlabeled competitor (see Figures 1 and 2 for concentrations tested) in binding buffer in a nonbinding 96-well plate, and incubated for 1-2 h. Prior to filtration, a GF/C 96-well filter plate is coated with 0.33% polyethyleneimine for 30 min, then washed with 50mM HEPES, pH 7.4, 0.5% BSA. Binding reaction is transferred to the filter plate, and washed 3 times (1 mL per well per wash) with Wash Buffer. The plate is dried and counted.
Binding buffer: 50 mM Hepes, pH 7.4, 5 mM MgCl2, 1 mM CaCl2, 0.2% BSA, filtered and stored at 4°C
Radioligand: [125I]-MIT-1 (Perkin Elmer#:NEX-410 )
Wash Buffer: 50 mM Hepes, pH 7.4, 500mM NaCl , 0.1% BSA, filtered and stored at 4°C.
One package contains enough membranes for at least 200 assays (units), where a unit is the amount of membrane that will yield greater than 10-fold signal:background with 125I-labeled MIT-1 at 0.2 nM

外形

Liquid in packaging buffer: 50 mM Tris pH 7.4, 10% glycerol and 1% BSA no preservatives. Packaging method: Membranes protein were adjusted to 0.5 mg/ml in 1 mL packaging buffer, rapidly frozen, and stored at -80°C.

储存及稳定性

Maintain frozen at -70°C for up to 2 years. Do not freeze and thaw.

法律信息

CHEMICON is a registered trademark of Merck KGaA, Darmstadt, Germany

免责声明

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

基本信息

eCl@ss32161000
NACRESNA.84

产品性质

质量水平100
生物来源human
重组expressed in Chem-1 cells
manufacturer/tradenameChemiScreen
Chemicon®
technique(s)ligand binding assay: suitable (GTPγS)
radioligand binding assay (RLBA): suitable
NCBI登记号NM_138964.2
UniProt登记号Q8TCW9
运输dry ice
Gene Informationhuman ... PROKR1(10887)

安全信息

储存分类代码12 - Non Combustible Liquids
WGKWGK 2
闪点(F)Not applicable
闪点(C)Not applicable

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