Introduction
Serine/threonine-protein kinase 16 (STK16) is a membrane-associated protein kinase that adds phosphate groups to serine and threonine residues. It plays a role in the movement of secretory vesicles and intracellular signaling. Additionally, STK16 might be involved in regulating how stromal and epithelial cells interact during the formation of ducts in the mammary gland. While STK16 can add a phosphate group to itself at a Tyrosine residue, it's unclear if it functions as a tyrosine-protein kinase for other proteins. STK16 may also be part of the TGF-beta signaling pathway.
Description
Recombinant human STK16, produced in E. coli, is a single polypeptide chain without any sugar modifications. It consists of 329 amino acids (specifically, amino acids 1 to 305) and has a molecular weight of 37.2 kDa. A 24-amino acid His-tag is attached to the N-terminus of STK16. The protein is purified using specialized chromatographic methods.
Physical Appearance
A clear and sterile solution.
Formulation
The STK16 protein is provided in a solution at a concentration of 1mg/ml. The solution also contains 20mM Tris-HCl buffer (pH 8.0), 20% glycerol, 0.1M NaCl, and 1mM DTT.
Stability
For short-term storage (up to 4 weeks), keep the vial at 4°C. For longer periods, store the protein at -20°C. Adding a carrier protein (like HSA or BSA) to a final concentration of 0.1% is recommended for long-term storage. Repeated freezing and thawing of the protein should be avoided.
Purity
The purity of the protein is greater than 90%, as determined by SDS-PAGE analysis.
Synonyms
Serine/threonine-protein kinase 16, Myristoylated and palmitoylated serine/threonine-protein kinase, MPSK, Protein kinase PKL12, TGF-beta-stimulated factor 1, TSF-1, Tyrosine-protein kinase STK16, hPSK, STK16, MPSK1, PKL12, TSF1, KRCT.
Amino Acid Sequence
MGSSHHHHHH SSGLVPRGSH MGSHMGHALC VCSRGTVIID NKRYLFIQKL GEGGFSYVDL VEGLHDGHFY ALKRILCHEQ QDREEAQREA DMHRLFNHPN ILRLVAYCLR ERGAKHEAWL LLPFFKRGTL WNEIERLKDK GNFLTEDQIL WLLLGICRGL EAIHAKGYAH RDLKPTNILL GDEGQPVLMD LGSMNQACIH VEGSRQALTL QDWAAQRCTI SYRAPELFSV QSHCVIDERT DVWSLGCVLY AMMFGEGPYD MVFQKGDSVA LAVQNQLSIP QSPRHSSALR QLLNSMMTVD PHQRPHIPLL LSQLEALQPP APGQHTTQI.