The calcium channel alpha2/delta subunit is a glycosylated structural subunit consisting of the alpha2 subunit and the delta peptide. There is distinctive alpha2 subunit expression in rat spinal cord and dorsal root ganglia (DRG) There are two forms of the alpha2 subunit in DRG that are different from the alpha2 subunit in other tissues examined, at least at the glycosylation level. Thus, post-translational modification may be important in tissue specific and functional expression of the alpha2/delta subunit (2). alpha2/delta and beta1b interact with alpha1G to increase trafficking of, or stabilize, functional alpha1G channels expressed at the plasma membrane.(3)Synonyms: CACNL2A, CCHL2A, MHS3, Voltage-dependent calcium channel subunit alpha-2/delta-1