Western Blotting (WB), Immunohistochemistry (Paraffin-embedded Sections) (IHC (p)), Immunocytochemistry (ICC)
Purification
Antigen affinity
Immunogen
An amino acid sequence from the middle region of human SIAH Interacting Protein (NTRWDYLTQVEKECKE) was used as the immunogen for this SIP antibody (100% homologous in human, mouse and rat).
TSACC
Reactivity: Human
WB, IF (cc), IF (p)
Host: Rabbit
Polyclonal
AbBy Fluor® 750
Application Notes
The stated application concentrations are suggested starting amounts. Titration of the SIP antibody may be required due to differences in protocols and secondary/substrate sensitivity.\. Western blot: 0.5-1 μg/mL,IHC (Paraffin): 0.5-1 μg/mL,Immunocytochemistry: 0.5-1 μg/mL
Restrictions
For Research Use only
Buffer
0.5 mg/mL if reconstituted with 0.2 mL sterile DI water
Storage
-20 °C
Storage Comment
After reconstitution, the SIP antibody can be stored for up to one month at 4°C. For long-term, aliquot and store at -20°C. Avoid repeated freezing and thawing.
CACYBP (Calcyclin-binding protein), also called SIP (SIAH Interacting Protein), is a protein that in humans is encoded by the CACYBP gene. The full-length SIP cDNA encodes a predicted 228-amino acid protein. Sequence analysis of the shortest cDNA derived by 2-hybrid screening revealed an 8-amino acid difference in the deduced open reading frame followed by a stop codon, resulting in a predicted 80-amino acid protein, SIP-short (SIPS). The CACYBP gene is mapped on 1q25.1. It may be involved in calcium-dependent ubiquitination and subsequent proteosomal degradation of target proteins. It probably serves as a molecular bridge in ubiquitin E3 complexes and participates in the ubiquitin-mediated degradation of beta-catenin. Two alternatively spliced transcript variants encoding different isoforms have been found for this gene. The C-terminal region of SIP that is homologous to SGT1 was able to complement defects in yeast strains containing SGT1 mutant alleles, demonstrating conservation of SGT1 and SIP protein function.