Neurokinin A, aka substance K, is a peptide hormone belonging to the tachykinin family, which also includes Substance P and Neurokinin B. All the peptides from tachykinin families are derived from two preprotachykinin genes - the PPT-A gene and PPT-B gene. The former encodes the sequences of Substance P. Neurokinin A. and Neuropeptide K and the latter encodes the sequence of Neurokinin B. Neuropeptide K and Neuropeptide gamma are N-terminally longer versions of neurokinin A.

Neurokinin A has played a variety of roles in human. For example, it is reported that Neurokinin A may mediate bronchoconstriction through the non-adrenergic non-cholinergic nervous system in rat.

There has been no clinical application reported for neurokinin A.

Standard, Biotinylated Neurokinin A peptide, and Positive Control should be stored at -20°C after arrival. Avoid multiple freeze-thaws. The remaining kit components may be stored at 4°C. Opened Microplate Wells and antibody (Item N) may be stored for up to 1 month at 2° to 8°C. Return unused wells to the pouch containing desiccant pack and reseal along entire edge.