Kelch repeat-containing protein (KrP)/Galactose oxidase is a protein associated with iron acquisition and metal homeostasis which is a marker for iron defficiency due to the fact that the transcript levels are stably regulated under iron defficiency conditions. Protein can be a target of of bHLH39, bHLH100 and bHLH101 transcription factors. The gene localized at locus At3g07720 is a supposed ancestor of NSP (nitrile-specifier proteins), NSP1, NSP2, and NSP5, which unlike its descendants does not show nitrile-specifier activity.Alternative names: NSL1, NSP-like1, nitrile-specifier protein-like 1
