Kallikrein 8 (hK8), also known as neuropsin, brain serine protease 1 (BSP1), tumor associated differentially expressed gene 14 (TADG14), PRSS19, HNP and ovasin, is a trypsin like serine protease. Originally described from mouse brain, KLK8 was implicated in neural plasticity and learning. Kallikrein 8 is thought to be involved in neurite outgrowth and fasciculation during nervous system development. Kallikrein 8 is induced in neurite injury, and Kallikrein 8 has been shown to be elevated in the hippocampus on Alzheimer’s patients’ brains. Animal models of autoimmune encephalomyelitis (EAE) show elevated Kallikrein 8 production. Kallikrein 8 null mice have aberrant synapses in their hippocampus, compared to wild type mice, and are predisposed to seizures. Kallikrein 8 is thought to regulate the early phase of long-term potentiation (LTP), possibly by cleaving fibronectin and other substrates. Kallikrein 8 is also found in the uterus, where it is hormonally regulated. Cervical cancer cell lines express high levels of Kallikrein 8, and it may be useful as a tumor marker. Kallikrein 8 is not limited to the brain and uterus, as many tissues and cell lines make the protein. Endogenous inhibitors include serine protease inhibitor 3 and protein C inhibitor, although Kallikrein 8 can be found complexed to a number of different protease inhibitors.

Kallikrein-8; Ovasin; Serine protease TADG 14; Tumor associated differentially expressed gene 14 protein; Brain serine protease 1; BSP1; hK8; HNP; HPN; Kallikrein 8 (neuropsin/ovasin); Kallikrein related peptidase 8; Kallikrein8; KLK 8; KLK8; KLK-8; KLK8 protein type 1; KLK8 protein type 2; Neuropsin; neuropsin type 1; Neuropsin type 1, included; Neuropsin type 2; Neuropsin type 2, included; Neuropsin, mouse, homolog of; NP; NRPN; Protease serine 19; PRSS 19; PRSS19; Serine protease 19; Serine protease kallikrein; Serine protease kallikrein/ovasin/neuropsin; Serine protease TADG14; TADG 14; TADG14; Tumor associated differentially expressed gene 14.

Mouse,Rat,Human,Dog,Pig,Cow,Horse,GuineaPig

IHC,IF,ICC

IHC 1:100-500
IF 1:200-800
ICC 1:100-1:400

28kD

11202

Q61955

https://www.uniprot.org/uniprotkb/Q61955

Secreted. Cytoplasm. Shows a cytoplasmic distribution in the keratinocytes.

Isoform 1 is predominantly expressed in the pancreas. Isoform 2 is expressed in adult brain and hippocampus. Isoform 1 and isoform 2 are found in fetal brain and placenta. Detected in salivary gland, uterus, thymus, breast, testis and kidney but not in spleen, liver, lung or normal ovarian tissue. Displays an 11.5-fold increase in Alzheimer disease hippocampus compared to controls and is overexpressed in some ovarian carcinomas. Expressed at low levels in normal skin while high levels are found in psoriasis vulgaris, seborrheic keratosis, lichen planus and squamous cell carcinoma skin samples. Expressed in the keratinocytes.

KLH conjugated synthetic peptide derived from human KLK8

Rabbit

Polyclonal

IgG

affinity purified by Protein A

Liquid

0.01M TBS (pH7.4) with 1% BSA, 0.02% Proclin300 and 50% Glycerol.

Shipped at 4℃. Store at -20℃ for one year. Avoid repeated freeze/thaw cycles.