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The pGEM-T is 3kb in length, and contains the amplicin resistance gene, conferring selection of the plasmid in E. coli, and the ori site which is the bacterial origin of replication. The plasmid has multiple cloning sites as shown below. The coding sequence was inserted by TA cloning. Many E. coli strains are suitable for the propagation of this vector including JM109, DH5α and TOP10.
The coding sequence can be easily obtained by digesting the vector with proper restriction enzyme(s). The coding sequence can also be amplified by PCR with M13 primers, or primer pair SP6 and T7.
|Human IZUMO1 Gene cDNA Clone (full-length ORF Clone), expression ready, FLAG-tagged||HG13520-G-F|
|Human IZUMO1 Gene cDNA Clone (full-length ORF Clone), expression ready, His-tagged||HG13520-G-H|
|Human IZUMO1 Gene cDNA Clone (full-length ORF Clone), expression ready, Myc-tagged||HG13520-G-M|
|Human IZUMO1 Gene cDNA Clone (full-length ORF Clone), expression ready, untagged||HG13520-G-N|
|Human IZUMO1 Gene cDNA Clone (full-length ORF Clone), expression ready, HA-tagged||HG13520-G-Y|
Izumo is a sperm membrane protein which plays a key role in the fusion in the mouse. It has an Immunoglobulin (Ig) domain and an N-terminal domain for which neither the functions nor homologous sequences are known. Up to now, there four members has an N-terminal domain with significant homology to the N-terminal domain of Izumo. We call this domain Izumo domain. The four proteins are Izumo 1, 2, 3, and 4. Izumo domain possesses the ability to form dimers, whereas the transmembrane domain or the cytoplasmic domain or both of Izumo 1 are required for the formation of multimers of higher order. Izumo 1-3 are transmembrane proteins expressed specifically in the testis, and Izumo 4 is a soluble protein expressed in the testis and in other tissues. Izumo 1, 3, and 4 formed protein complexes on sperm, Izumo 1 forming several larger complexes and Izumo 3 and 4 forming a single larger complex. Izumo1 is essential for sperm-egg plasma membrane binding and fusion.