SUN Xue-feng, et al. Separation and identification of hsp27 interacting proteins from human hepatocellular carcinoma cells[J]. Journal of Chongqing Medical University, 2010,35(8):1221-1223.
SUN Xue-feng, et al. Separation and identification of hsp27 interacting proteins from human hepatocellular carcinoma cells[J]. Journal of Chongqing Medical University, 2010,35(8):1221-1223. DOI: 10.13406/j.cnki.cyxb.2010.08.035.
Objective:To find out heatshock protein HSP27 interactingproteins in the hepatocellularcarcinoma(HCC).Methods:HSP27 interacting proteins in the human HCC HepG2.2215 cells were seperated and identified.HSP27 binding proteins were recovered by antiHSP27 antibody immunoprecipitation with the total proteins from HCC HepG2.2215 cells.After in-solution digested and analyzed by LC-ESI-ITMS/MS
the recovered protein complexes were identified by peptide sequence tags(PST)and database searching
and were confimed by immunoprecipitation and Western blot analysis.Results:Seven HSP27 binding proteins were firstly identified by database searching
which were HSP90
GRP-78 and HSP70 of HSP70 family members
lysyl hydroxylase
Keratin 9
Keratin 10
Keratin 1.The identified seven HSP27-interacting proteins by IP coupled with MS could be classified into three functional categories based on their functions:chaperones
cytoskeleton organization
metabolic enzymes.Conclusion:HSP27 in HCC is a related proteins involved in the regulation
by interacting with some peptides
or small molecule protein to control the tumor development.
关键词
热休克蛋白27肝癌免疫共沉淀液相色谱-电喷雾离子阱质谱蛋白质印迹
Keywords
HSP27hepatocellular carcinomaCo-immunoprecipitationLC-ESI-ITMS/MSWestern blot