ABSTRACT
<p><b>OBJECTIVE</b>To investigate the presence of interactions between DNAJB13 and HK1.</p><p><b>METHODS</b>The open reading frame of Dnajb13 gene was amplified from mouse testis cDNA by PCR. The PCR products were then inserted into pGEX-4T-1 vector after double digestion and identified by sequencing. The recombinant plasmids were transformated into competent DH5a cells, and the fusion protein was expressed with IPTG induction. SDS-PAGE Coomassie brilliant blue staining and Western blot analysis were used to detect the fusion protein expression. The protein precipitated by GST-DNAJB13 in GST pull down assay was detected by Western blotting.</p><p><b>RESULTS</b>The recombinant plasmid pGEX-4T-1-Dnajb13 was successfully constructed and verified. E.coli transformed with the recombinant plasmid expressed abundant fusion protein. GST pull down assay showed interactions between DNAJB13 and HK1.</p><p><b>CONCLUSION</b>DNAJB13 interacts with HK1 in mouse testis and probably participates in spermatogenesis and the regulation of sperm motility.</p>