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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.
|Rat CNTN3 ORF mammalian expression plasmid, C-GFPSpark tag||RG80316-ACG|
|Rat CNTN3 ORF mammalian expression plasmid, C-OFPSpark / RFP tag||RG80316-ACR|
|Rat CNTN3 ORF mammalian expression plasmid, C-Flag tag||RG80316-CF|
|Rat CNTN3 ORF mammalian expression plasmid, C-His tag||RG80316-CH|
|Rat CNTN3 ORF mammalian expression plasmid, C-Myc tag||RG80316-CM|
|Rat CNTN3 ORF mammalian expression plasmid, C-HA tag||RG80316-CY|
|Rat CNTN3 ORF mammalian expression plasmid, N-Flag tag||RG80316-NF|
|Rat CNTN3 ORF mammalian expression plasmid, N-His tag||RG80316-NH|
|Rat CNTN3 ORF mammalian expression plasmid, N-Myc tag||RG80316-NM|
|Rat CNTN3 ORF mammalian expression plasmid, N-HA tag||RG80316-NY|
|Rat CNTN3 natural ORF mammalian expression plasmid||RG80316-UT|
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Contactins are a subgroup of molecules belonging to the immunoglobulin superfamily that are expressed exclusively in the nervous system. The subgroup consists of six members: Contactin-1, Contactin-2(TAG-1), Contactin-3(BIG-1), BIG-2, Contactin-5(NB-2) and NB-3. Since their identification in the late 1980s, Contactin-1 and Contactin-2 have been studied extensively. Axonal expression and the neurite extension activity of Contactin-1 and Contactin-2 attracted researchers to study the function of these molecules in axon guidance during development. Contactin-1 and Contactin-2 have come to be known as the principal molecules in the function and maintenance of myelinated neurons. In contrast, the function of the other four members of this subgroup remained unknown until recently. Contactin-3, also known as CNTN3 ( BIG-1 in rat and PANG in mouse ), is a GPI-linked glycoprotein that is expressed on cerebellar Purkinje cells, amygdaloid and thalamic neurons and olfactory granule cells. In the brain, Contactin-3 is expressed in frontal lobe, occipital lobe, cerebellum and amygdala. Contactin-3 contains 4 fibronectin type-III domains and 6 Ig-like C2-type (immunoglobulin-like) domains. Human Contactin-3 shares 92% aa identity with mouse Contactin-3.The exact function of Contactin-3 is unclear. Contactin-3 may mediate cell-cell interaction and may promote neurite outgrowth.