Introduction
SDCBP, also known as syntenin-1, is a multifunctional adapter protein found inside cells. Its primary function involves connecting various proteins, thereby influencing cell signaling and behavior. Notably, SDCBP possesses multiple PDZ domains that interact with the FYA (phenylalanine-tyrosine-alanine) sequence present at the C-terminus of syndecans. Through these interactions, SDCBP plays a crucial role in:
- Formation of protein complexes at the plasma membrane
- Regulation of B-cell development
- Activation of transcription factors
- Intracellular trafficking and cell surface targeting of proteins
- Synaptic transmission
- Axonal outgrowth
Description
Recombinant SDCBP protein, expressed in E. coli, is a single, non-glycosylated polypeptide chain comprising 318 amino acids (residues 1-298). This protein has a molecular weight of 34.6 kDa. For purification and detection purposes, a 20 amino acid His-tag is fused to the N-terminus. The purification process involves proprietary chromatographic techniques to ensure high purity.
Physical Appearance
The product is a sterile and filtered solution, appearing clear and without any visible particles.
Formulation
The SDCBP protein is provided as a solution with a concentration of 0.5 mg/ml. It is formulated in a buffer containing 20 mM Tris-HCl (pH 8.0), 100 mM NaCl, and 40% glycerol. This formulation helps to maintain the protein's stability and activity.
Purity
The purity of the SDCBP protein is greater than 90%, as determined by SDS-PAGE analysis.
Stability
For short-term storage (2-4 weeks), the SDCBP protein solution should be kept at 4°C. For long-term storage, it is recommended to store the protein at -20°C. Avoid repeated freeze-thaw cycles to prevent protein degradation.
Synonyms
SYCL, syntenin-1, Syndecan-binding protein 1, Scaffold protein Pbp1, MDA-9, Melanoma differentiation-associated protein 9, TACIP18, Pro-TGF-alpha cytoplasmic domain-interacting protein 18.
Amino Acid Sequence
MGSSHHHHHH SSGLVPRGSH MSLYPSLEDL KVDKVIQAQT AFSANPANPA ILSEASAPIP HDGNLYPRLY PELSQYMGLS LNEEEIRANV AVVSGAPLQG QLVARPSSIN YMVAPVTGND VGIRRAEIKQ GIREVILCKD QDGKIGLRLK SIDNGIFVQL VQANSPASLV GLRFGDQVLQ INGENCAGWS SDKAHKVLKQ AFGEKITMTI RDRPFERTIT MHKDSTGHVG FIFKNGKITS IVKDSSAARN GLLTEHNICE INGQNVIGLK