Catalogue

Background
Sphingosine kinase-1 (SK1) is a key enzyme that catalyzes the phosphorylation of sphingosine to sphingosine-1-phosphate (S1P). SK1, and its product S1P, regulate numerous and diverse biological functions, including cell growth, differentiation, proliferation, and apoptosis. S1P also plays a central role in cardiac development and ischemic preconditioning. FHL2 (SLIM3) has been identified as a SK1-interacting protein in mammalian cardiomyocytes. FHL2, but not FHL1 or FHL3, interacts with SK1, and FHL2 colocalizes with SK1 in the cytoplasm of these cells. The interaction of FHL2 with SK-1 involves the C-terminal portion of SK1. Overexpression of FHL2 has been found to attneuate the activity and antiapoptotic effects of SK1. Endothelin-1, a potent survival factor in cardiomyocytes, inhibits FHL2-SK1 association and increases SK1 activity. FHL2 is therefore a novel inhibitor of SK1 activity in cardiomyocytes and targeting FHL2 may prevent myocardial apoptosis through activation of SK1.A transcriptional coactivator, FHL2 is also known to form complexes consisting of Proline-, glutamic acid-, and leucine-rich protein-1 (PELP1), FHL2, and androgen receptors (AR) in prostate cancer cells, perhaps functioning as a molecular adaptor with PELP1 in the progression of prostate cancer.

Synonyms: Four-and-a-half LIM only protein 2, FHL2

Source

Immunogen: Synthetic peptide derived from the human FHL2 protein

Product

Product Form: Affinity Purified

Formulation: Provided as ligand affinity purified antibody in phosphate buffered saline with 0.08% sodium azide

Purification Method: Antigen Immunoaffiinity Purification

Concentration: Lot specific, see vial for details

Applications
Antibody can be used for Western blotting (0.5-2 µg/ml). Also binds ABB73038, FHL2 isoform 5 with MW of 389 a.a. (~42kDa). Optimal concentration should be evaluated by serial dilutions.

Functional Analysis: Western Blotting

Positive Control: Antibody has been tested on HeLa cell lysates.

Storage
Product should be stored at -70°C. Aliquot to avoid freeze/thaw cycles

Product Stability: See expiration date on vial

Shipping Conditions: Ship at ambient temperature, freeze upon arrival

Caution
This product is intended FOR RESEARCH USE ONLY, and FOR TESTS IN VITRO, not for use in diagnostic or therapeutic procedures involving humans or animals. It may contain hazardous ingredients. Please refer to the Safety Data Sheets (SDS) for additional information and proper handling procedures. Dispose product remainders according to local regulations.This datasheet is as accurate as reasonably achievable, but our company accepts no liability for any inaccuracies or omissions in this information.

References
1: Nair SS, et al. PELP1/MNAR enhances androgen receptor functions through LIM-only coactivator FHL2. Mol Endocrinol. 2006 Dec 27 2: Kudo LC, et al. Genetic Analysis of Anterior-Posterior Expression Gradients in the Developing Mammalian Forebrain. Cereb Cortex. 2006 Dec 5; 3: Kahl P, et al. Androgen receptor coactivators lysine-specific histone demethylase 1 and four and a half LIM domain protein 2 predict risk of prostate cancer recurrence. Cancer Res. 2006 Dec 1;66(23):11341-7. 4: Campo-Fernandez B, et al. Identification of the FHL2 Transcriptional Coactivator as a New Functional Target of the E7 Oncoprotein of Human Papillomavirus Type 16.J Virol. 2007 Jan;81(2):1027-32. Epub 2006 Nov 8. 5: Govoni KE, et al. Disruption of four-and-a-half LIM 2 decreases bone mineral content and bone mineral density in femur and tibia bones of female mice. Calcif Tissue Int. 2006 Aug;79(2):112-7. Epub 2006 Aug 15. 6: Sun J, et al. FHL2/SLIM3 decreases cardiomyocyte survival by inhibitory interaction with sphingosine kinase-1. Circ Res. 2006 Sep 1;99(5):468-76. Epub 2006 Aug 3.

Protein Reference(s)

Database Name: UniProt

Accession Number: CAG33718

Species Accession: Human

Safety Datasheet(s) for this product: