FAF1, CT (FAS-associated Factor 1, hFAF1, UBX Domain-containing Protein 12, UBX Domain-containing Protein 3A, UBXD12, UBXN3A, CGI-03, FLJ37524)

Fas-associated protein 1 (FAF1) was initially identified as a Fas-binding pro-apoptotic protein that is component of the death-inducing signaling complex in Fas-mediated apoptosis. FAF1 can also induce apoptosis in the absence of extrinsic death signals when overexpressed although it does not contain typical death motifs such as the death domain, death effector domain, and caspase recruitment domain. Overexpression of FAF1 also decreases the basal level of NF-kB activity in transfected 293 cells, inhibits NF-kB activity induced by TNF-a, IL-1b and lipopolysaccharide, and prevents NF-kB translocation to the nucleus, suggesting that another role of FAF1 is to negatively regulate the activity of NF-kB. FAF1 can also interact with the inflammatory signaling PYRIN-containing Apaf-1-like proteins (PYPAFs, also called NALPs) such as PYPAF1, PYPAF2 (NALP2), and PYPAF7, suggesting FAF1 may also be involved in the inflammation pathway. Multiple differentially spliced isoforms of FAF1 are known to exist.\n\nApplications:\nSuitable for use in ELISA, Western Blot, Immunofluorescence and Immunohistochemistry. Other applications not tested.\n\nRecommended Dilution:\nWestern Blot: 1-2ug/ml\nImmunofluorescence: 20ug/ml\nImmunohistochemistry (Formalin fixed paraffin embedded): 2.5ug/ml\nOptimal dilutions to be determined by the researcher.\n\nPositive Control:\nJurkat Cell Lysate or Rat Spleen Tissue Lysate\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 at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.

Prices direct from United States Biological

Quick response times

Exclusive Biosave savings/discounts

SPECIFICATIONS

Catalog Number

146142

Size

100ug

Applications

ELISA, IF, IHC, WB

Hosts

Rabbit

Reactivities

Hum, Mouse, Rat

Form

Supplied as a liquid in PBS, 0.02% sodium azide.

P Type

Pab

Purity

Purified by immunoaffinity chromatography.

Isotype

IgG

References

1. Chu K, Niu X, and Williams LT. A Fas-associated protein factor, FAF1, potentiates Fas-mediated apoptosis. Proc. Natl. Acad. Sci. USA 1995; 92:11894-8. 2. Ryu SW and Kim E. Apoptosis induced by human Fas-associated factor 1, hFAF1, requires its ubiquitin homologous domain, but not the Fas-binding domain. Biochem. Biophys. Res. Commun. 2001; 286:1027-32. 3. Park M-Y, Jang HD, Lee SY, et al. Fas-associated Factor-1 inhibits Nuclear Factor-kB (NF-kB) activity by interfering with nuclear translocation of the RelA (p65) subunit of NF-kB. J. Biol. Chem. 2004; 279:2544-9. 4. Kinoshita T, Kondoh C, Hasegawa M, et al. Fas-associated factor 1 is a negative regulator of PYRIN-containing Apaf-1-like protein 1. Int. Immunol. 2006;18:1701-6.

Additional Info

Recognizes human FAF1. Species Crossreactivity: mouse and rat.