HNRNPD (AUF1, AU-rich Element RNA Binding Protein 1, Heterogeneous Ribonucleoprotein D)

AU-rich element RNA binding protein 1 (AUF1) is also known as heterogeneous ribonucleoprotein D (hnRNP D). AUF1 binds to the AU rich element (ARE) of target mRNA and regulates mRNA decay (1,2). It has a broad range of target genes including IL-1, IL-2, IL-3, Myc, TNF-a, and cyclin D1 (2). Binding of AUF1 to Myc mRNA also affects translation of Myc (3). Recent studies have provided evidence that AUF1 is also involved in the regulation of transcription. AUF1 binds to the promoters of various genes including complement receptor 2 (4), enkephalin (5), and a-fetoprotein (6). AUF1 also binds to the telomerase catalytic subunit Tert promoter and the G-rich telomeric repeat, thus regulating telomere maintenance and normal aging (7,8). AUF1 has four isoforms produced by alternative splicing of a single transcript: p37, p40, p42, and p45 (9,10). All AUF1 isoforms shuttle between the nucleus and cytoplasm (11, 12). These isoforms have distinct localization and bind to different target mRNAs that contribute to the diversity of AUF1 function (2).\n\nApplications: \nSuitable for use in Western Blot and Immunoprecipitation. Other applications not tested.\n\nRecommended Dilution:\nWestern Blot: 1:1000. Incubate membrane with diluted antibody in 5% w/v nonfat dry milk, 1X TBS, 0.1% Tween-20 at 4 degrees C with gentle shaking, overnight.\nImmunoprecipitation: 1:50\nOptimal dilutions to be determined by the researcher.\n\nStorage and Stability:\nMay be stored at 4 degrees C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20 degrees C. Aliquots are stable for 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.

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SPECIFICATIONS

Catalog Number

137446

Size

100ul

Applications

IP, WB

Hosts

Rabbit

Reactivities

Hum

Form

Supplied in 10mM sodium HEPES, pH 7.5, 150mM NaCl, 100ug/ml BSA, 50% glycerol and <0.02% sodium azide.

P Type

Mab

Purity

Purified.

Isotype

IgG

References

1. Brewer, G. (1991) Mol Cell Biol 11, 2460-6. 2. GratacOs, F.M. and Brewer, G. (2010) Wiley Interdiscip Rev RNA 1, 457-73. 3. Liao, B. et al. (2007) Nat Struct Mol Biol 14, 511-8. 4. Tolnay, M. et al. (2000) Biochem J 348 Pt 1, 151-8. 5. Dobi, A. et al. (2006) J Biol Chem 281, 28889-900. 6. Jiao, R. et al. (2006) J Cell Biochem 98, 1257-70. 7. Eversole, A. and Maizels, N. (2000) Mol Cell Biol 20, 5425-32. 8. Pont, A.R. et al. (2012) Mol Cell 47, 5-15. 9. Dempsey, L.A. et al. (1998) Genomics 49, 378-84. 10. Wagner, B.J. et al. (1998) Genomics 48, 195-202. 11. Zhang, W. et al. (1993) Mol Cell Biol 13, 7652-65. 12. Sarkar, B. et al. (2003) J Biol Chem 278, 20700-7.

Additional Info

Recognizes endogenous levels of total human AUF1.