TY - JOUR
T1 - Preliminary structural and functional study on a novel gene HSPCSET
AU - Wei, Ju
AU - Sun, Xiao Jian
AU - Wu, Xin Yan
AU - Chen, Sai Juan
AU - Chen, Zhu
AU - Wang, Chun
AU - Huang, Qiu Hua
PY - 2009/2/10
Y1 - 2009/2/10
N2 - Objective: To characterize the structural and the functional feature of a novel gene HSPCSET isolated from human CD34 + hematopoietic stem/progenitor cells (HS/PCs). Methods: Bioinformatic technology was used to identify the structural features of the HSPCSET protein and perform the multiple sequence alignment. Yeast-two-hybrid system was used to identify the proteins interacting with the HSPCSET protein. After sequencing, we selected out the positive clones which had clear functions, and carried out β-gal experiment and GST pull down assay to confirm the results. The cellular location of the HSPCSET was checked by immunofluorescence assay. Results: The HSPCSET protein belongs to a SET domain family, which is evolutionarily conserved across species. It implied that HSPCSET may have biologically important function. Using yeast-two-hybrid system, we showed that the protein sequence with SET domain might bind to 13 proteins, which involved in signaling transduction, transcriptional regulation, apoptosis, tumorigenesis, development, etc. And 4 proteins (GADD34, SIVA, DNAJ and PHF1) were confirmed by one-on-one back of the hybrid experiment, β-gal test and GST pull down assay. When GADD34 and HSPCSET were co-transfected, they co-localized in the nucleus, suggesting a strong interaction. Conclusion: The novel gene HSPCSET is likely to have biologically important function. This study provides the basis for further studies of its function in hematopoiesis and tumorigenesis.
AB - Objective: To characterize the structural and the functional feature of a novel gene HSPCSET isolated from human CD34 + hematopoietic stem/progenitor cells (HS/PCs). Methods: Bioinformatic technology was used to identify the structural features of the HSPCSET protein and perform the multiple sequence alignment. Yeast-two-hybrid system was used to identify the proteins interacting with the HSPCSET protein. After sequencing, we selected out the positive clones which had clear functions, and carried out β-gal experiment and GST pull down assay to confirm the results. The cellular location of the HSPCSET was checked by immunofluorescence assay. Results: The HSPCSET protein belongs to a SET domain family, which is evolutionarily conserved across species. It implied that HSPCSET may have biologically important function. Using yeast-two-hybrid system, we showed that the protein sequence with SET domain might bind to 13 proteins, which involved in signaling transduction, transcriptional regulation, apoptosis, tumorigenesis, development, etc. And 4 proteins (GADD34, SIVA, DNAJ and PHF1) were confirmed by one-on-one back of the hybrid experiment, β-gal test and GST pull down assay. When GADD34 and HSPCSET were co-transfected, they co-localized in the nucleus, suggesting a strong interaction. Conclusion: The novel gene HSPCSET is likely to have biologically important function. This study provides the basis for further studies of its function in hematopoiesis and tumorigenesis.
KW - HSPCSET gene
KW - Hematopoietic stem/progenitor cell
KW - SET gene family
KW - Tumorigenesis
UR - http://www.scopus.com/inward/record.url?scp=60549113021&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=60549113021&partnerID=8YFLogxK
U2 - 10.3760/cma.j.issn.1003-9406.2009.01.008
DO - 10.3760/cma.j.issn.1003-9406.2009.01.008
M3 - Article
C2 - 19199248
AN - SCOPUS:60549113021
SN - 1003-9406
VL - 26
SP - 35
EP - 39
JO - Chinese Journal of Medical Genetics
JF - Chinese Journal of Medical Genetics
IS - 1
ER -