For best results and reproducibility, rehydrate peptide just before use. Do not attempt to weigh out smaller portions. Do not refreeze any unused portions.
Hemokinin-1 (HK-1) is a novel substance P (SP)-like peptide, shown to be a potentially important regulator of B cell development - Kurtz, M. M. et al., Gene 296, 2305-212 (2002).