Technical Data
ACT (Activator of cAMP Responsive Element Modulator (CREM) in Testis, Activator of CREM in Testis, dJ393D12.2, Four and a Half LIM Domains Protein 5, FHL5, FHL-5 Protein, FLJ33049, KIAA0776)
FHL proteins are tissue specific cofactors of CREB and CREM and participate in regulation of various physiological processes. These proteins are characterized by the presence of 4 LIM domains and a LIM-half domain at the N-terminus. ACT, a 33kD protein, is a novel member of this family. It is specifically expressed in male testis and consists of a central activation domain. It is coordinately expressed with CREM and plays a vital role in spermatogenesis. It binds specifically to CREM and powerfully stimulates its transcriptional activation, essential for differentiation of spermatids into mature spermatozoa. It activates CREM in a phosphorylation- and CBP-independent manner. Protein-protein interactions with a Kinesin KIF17B regulate ACT activity in mouse.

Suitable for use in Western Blot. Other applications not tested.

Recommended Dilution:
Western Blot: 1:500-1:1000
Optimal dilutions to be determined by the researcher.

Storage and Stability:
May be stored at 4C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20C. 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.
PabIgGAffinity Purified
100ug-20CBlue IceHumanRabbit
Synthetic peptide corresponding to the N-terminus of ACT.
Purified by Protein G affinity chromatography.
Supplied as a liquid in PBS, 0.02% sodium azide.
Recognizes human ACT.
Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.
1. Fimia, G. M. et. al. Nature (1999) 398: 165-169 2. Fimia GM Mol Cell Endocrinol. 179(1-2):17-23 (2001 Jun 20) 3. Macho B Science 298(5602):2388-90 (2002 Dec 20).