Anti-OSBP1 Antibody Picoband®

About this product

Boster Bio Anti-OSBP1 Antibody catalog # PA1949. Tested in WB applications. This antibody reacts with Human, Mouse, Rat. The brand Picoband indicates this is a premium antibody that guarantees superior quality, high affinity, and strong signals with minimal background in Western blot applications. Only our best-performing antibodies are designated as Picoband, ensuring unmatched performance.

Specifications

Catalog number

PA1949

Size / count

100 µg/Vial

Dry ice

No

Hazardous

No

Discontinued

No

Background

OSBP (Oxysterol-Binding Protein), also called OSBP1, is a protein that in humans is encoded by the OSBP gene. Im et al. (2005) reported the structure of the full-length yeast oxysterol-binding-protein Osh4, a member of the OSBP-related protein (ORP) family, at 1.5- to 1.9-angstrom resolution in complexes with ergosterol, cholesterol, and 7-, 20- and 25-hydroxy cholesterol. Moreira et al. (2001) refined the localization of the OSBP1 gene to chromosome 11q12.1 by radiation hybrid analysis. Wang et al. (2005) found that OSBP functions as a cholesterol-binding scaffolding protein coordinating the activity of 2 phosphatases to control the extracellular signal-regulated kinase (ERK) signaling pathway. Cytosolic OSBP formed an approximately 440-kD oligomer with a member of the PTPPBS family of tyrosine phosphatases, the serine/threonine phosphatase PP2A, and cholesterol.

Synonyms

Oxysterol-binding protein 1; OSBP; OSBP1

Gene Name

OSBP

Gene ID

5007

UniProt

P22059

Host

Rabbit

Reactivity

Rat, Mouse, Human

Cross Reactivity

No cross-reactivity with other proteins

Immunogen

A synthetic peptide corresponding to a sequence in the middle region of human OSBP1, identical to the related rat and mouse sequences.

Clonality

Polyclonal

Tissue Specificity

Widely expressed. .

Applications

WB

Field of Research

Cardiovascular, Cholesterol Metabolism, Lipid and Lipoprotein Metabolism, Lipid Metabolism, Lipids/Lipoproteins, Metabolic Signaling Pathways, Metabolism, Pathways and Processes, Signal Transduction

Purification

Immunogen affinity purified.

Concentration

Adding 0.2 ml of distilled water will yield a concentration of 500 μg/ml.

Form

Lyophilized

Reconstitution

Add 0.2ml of distilled water will yield a concentration of 500ug/ml.

Function

Binds cholesterol and a range of oxysterols including 25-hydroxycholesterol (PubMed:15746430, PubMed:17428193) . Cholesterol binding promotes the formation of a complex with PP2A and a tyrosine phosphatase which dephosphorylates ERK1/2, whereas 25-hydroxycholesterol causes its disassembly (PubMed:15746430) . Regulates cholesterol efflux by decreasing ABCA1 stability (PubMed:18450749) . .

References & Citations

1. Im, Y. J., Raychaudhuri, S., Prinz, W. A., Hurley, J. H. Structural mechanism for sterol sensing and transport by OSBP-related proteins. Nature 437: 154-158, 2005. 2. Moreira, E. F., Jaworski, C., Li, A., Rodriguez, I. R. Molecular and biochemical characterization of a novel oxysterol-binding protein (OSBP2) highly expressed in retina. J. Biol. Chem. 276: 18570-18578, 2001. 3. Wang, P., Weng, J., Anderson, R. G. W. OSBP is a cholesterol-regulated scaffolding protein in control of ERK1/2 activation. Science 307: 1472-1476, 2005.

Storage Conditions

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.

Calculated Molecular Weight

89421 MW

Observed Molecular Weight

75 kDa

Specificity

No cross reactivity with other proteins.

Gene Name Synonym

Oxysterol-binding protein 1

Subcellular Location

Cytoplasm. Golgi apparatus membrane; Peripheral membrane protein. When bound to oxysterols, translocates to the periphery of Golgi membranes.

Sequence Similarities

Belongs to the OSBP family.

Protein Name

Oxysterol-binding protein 1

Isotype

Rabbit IgG

Contents

Each vial contains 5mg BSA, 0.9mg NaCl, 0.2mg Na2HPO4, 0.05mg Thimerosal, 0.05mg NaN3.