KLH-conjugated peptide derived from Arabidopsis thaliana KC1 protein P92960, At4g32650
KC1 is a regulatory K+ channel subunit that assembles with different inward-rectifying K+ channels to affect their activities. The protein is expressed in extremely low amounts, e.g. a few houndred per cell. Alternative names: AKT4, AtKC1, potassium chan
In the work of Honsbein et al. 125I has been used for detection of KC1 since this was the only way to get enough signal after 2-phase partitioning. ECL+ has been used with the protein after expression in Sf9 insect cells (1: 1000 primary antibody dilution) and in yeast with no problem (single band detected), but these are relatively high expression systems. In native plant material ion channels are expressed in ridiculously small quantities (a few hundred proteins per cell).
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