Kallikrein 9 antibody - Catalytic domain (ab40955)

Product Name 

Kallikrein 9 antibody - Catalytic domain

Product type 

Primary antibodies

Description 

Rabbit polyclonal to Kallikrein 9 - Catalytic domain

Immunogen 

Synthetic peptide based on the catalytic domain of Human Kallikrein 9.

(Peptide available as ab43091.)

Reacts with 
(species key)

Hu

Specificity 

Ab40955 reacts with human Kallikrein 9 and does not react with the other human kallikreins (hK1-8, 10-15).

We have a range of domain specific antibodies for this target. For a full list please see all Kallikrein 9 antibodies

Tested applications 
(see key)

WB

Abreviews 

Customer reviews (see key)

Read about Abreviews

Application notes 
(see key)

Recommended dilutions
WB: 1/1000 (when using colorimetric substrates such as BCIP/NBT) - 1/5000 (for chemiluminescent substrates). Predicted molecular weight: 36 kDa. Glycosylation and other post-translational modifications make the Kallikrein 9 protein run more slowly on SDS PAGE gels, usually around 36 kDa. A range of different sized bands can be seen for Kallikrein 9 in different tissues and in cell culture media, ranging from 16-30 kDa and likely representing different proteolytically processed forms. Dilution optimised using Chromogenic detection. Not yet tested in other applications. Optimal dilutions/concentrations should be determined by the end user.

Cellular localization 

Secreted

Research areas 

Cell Biology >> Proteolysis / Ubiquitin >> Proteolytic enzymes >> Serine protease >> Kallikreins
Cancer >> Invasion/microenvironment >> ECM >> Extracellular matrix >> Kallikreins
Signal Transduction >> Cytoskeleton / ECM >> Extracellular Matrix >> ECM Enzymes >> Kallikreins

Relevance 

Kallikrein 9, also known as Kallikrein-Like 3 (KLK-L3), is a chymotrypsin-like serine proteinase. Kallikrein 9 was discovered as the locus for kallikreins on chromosome 19 was more fully mapped and found by similarity to the other tissue kallikreins. Kallikrein 9 has been found in the ovary, thymus, testis, prostate, skin, breast and neuronal tissues and is made by many cell lines in culture. Kallikrein 9 levels in breast cancer and uterine cancer patients have been reported to drop as the disease progresses, thus hK9 might be considered a favorable prognostic marker. Different splice variants of hK9 have been reported, although it is not yet known if they produce functional proteins. The full length Kallikrein 9 encodes for a 250 amino acid protein, with a predicted mass of 27.5 kDa and a pI of 7.53. The 234 amino acid form predicts a protein of 26 kDa with a pI of 9.76 and this quite basic pI might give the shorter form a very different function or localization. The shorter sequence also diverges before the catalytic serine residue, making it unlikely to be proteolytically active. Pre-pro-kallikrein 9 has the 17 amino acid signal sequence is removed before secretion, and the Pro-kallikrein 9 is activated to Kallikrein 9 by removal of the 5 amino acid propeptide domain.

Database links 

Raised in 

Rabbit

Clonality 

Polyclonal

Isotype 

IgG

Purity 

Immunogen affinity purified

Storage buffer 

Preservative: 0.05% Sodium Azide
Constituents: 50% Glycerol

Material safety datasheets (MSDS) for this product:
Glycerol MSDS
Sodium Azide MSDS

Form 

Liquid

Concentration 

1.000 mg/ml

Storage instructions 

Shipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.

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