Recombinant Calloselasma rhodostoma Snaclec rhodocytin subunit alpha

The full-length cDNA ORF of Calloselasma rhodostoma Snaclec rhodocytin subunit alpha was N-terminally tagged a 6xHis-SUMO and then expressed in the E.coli cells. The recombinant Calloselasma rhodostoma Snaclec rhodocytin subunit alpha thus obtained was purified using SDS-PAGE analysis and got over 90% of purity. Under reducing conditions, this protein migrated to an approximately 28 kDa molecular mass band on the SDS-PAGE gel. This recombinant Snaclec rhodocytin subunit alpha protein may be used to produce specific antibodies or in the studies of snaclec rhodocytin-mediated signal transduction.

Snaclec rhodocytin is a disulfide‐linked heterodimeric C‐type lectin derived from Calloselasma rhodostoma and is made up of α‐subunits and β‐subunits. The interaction between snaclec rhodocytin and C‐type lectin‐like receptor 2 (CLEC-2) induces platelet aggregation. CLEC‐2 physiologically binding to podoplanin (PDPN), which is expressed on some tumor cell types, participates in tumor cell‐induced platelet aggregation and tumor metastasis. This may propose a possible source of anti‐CLEC‐2 drugs for both antiplatelet and antimetastasis therapy through rhodocytin modification.