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Western blot - Kallikrein 4 antibody - Kallikrein loop (ab28564)
(enlarge)
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Product Name
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Kallikrein 4 antibody - Kallikrein loop
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See all Kallikrein 4 antibodies (5)...
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Product type
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Primary antibodies
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Description
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Rabbit polyclonal to Kallikrein 4 - Kallikrein loop
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Immunogen
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Synthetic peptide based on the Kallikrein loop area of human Kallikrein 4.
(Peptide available as ab41422.)
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Reacts with
(species key)
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Hu
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Specificity
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This antibody reacts with Kallikrein 4, but does not react with the other kallikreins (1-7 and 9-15).
We have a range of domain specific antibodies for this target. For a full list please see all Kallikrein 4 antibodies
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Tested applications
(see key)
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WB
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Abreviews
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Application notes
(see key)
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Recommended dilutions
WB: Recommended starting dilution of 1/1000 when using colorimetric substrates such as BCIP/NBT and 1/5000 for chemiluminescent substrates. Higher concentrations of antibody may be needed for samples from more distantly related species. Predicted molecular weight: 27 kDa. Dilution optimised using Chromogenic detection. Not yet tested in other applications. Optimal dilutions/concentrations should be determined by the end user.
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Cellular localization
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Secreted
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Research areas
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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
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Relevance
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The human tissue Kallikrein gene family encodes 15 serine proteases. All Kallikreins share structural similarities including cysteine residues, a catalytic triad of His, Asp, and Ser residues, typically five coding exons and varied intron phases. Kallikreins are predominantly secreted as inactive zymogens prior to activation by cleavage of an N terminal peptide and all function extracellularly. Kallikreins can be activated autocatalytically, via other Kallikreins, or additional proteases. While structurally similar, Kallikrein family members have distinct functions and have key roles in many physiological and pathological processes. Many human tissue Kallikreins also show promise as cancer biomarkers, which may facilitate earlier detection and characterization of many forms of cancer.
Kallikrein 4 (hK4) was first described as enamel matrix serine proteinase 1, a serine protease involved in degradation of amelogenin during tooth development and tooth enamel turnover. Unlike another enamel processing enzyme, MMP20, hK4 is not restricted to dental tissues and has been identified in a range of normal and cancerous tissues and cell lines. Androgen response elements have been identified in hK4 genes and the hK4 levels have been shown to be modified by androgens and estrogens, similar to hK3 (PSA). hK4 has also been shown to activate pro-uPa by generating the two chain form after cleavage of the one chain form and thus may participate in an enzyme activation cascade. The Kallikrein 4 signal sequence is thought to be insufficient to allow secretion of hK4 and several reports indicate a predominately nuclear isolation.
The hK4 structure differs from the Kallikrein 1-3 in having a shorter "kallikrein loop", the sequence thought to impart specificity to the classical kallikreins. Endogenous inhibitors include kallistatin, protein C inhibitor and alpha 1 proteinase inhibitor, although hK4 can be found complexed to a number of different proteinase inhibitors.
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Kallikrein 4 antibody - Kallikrein loop (ab28564) |
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Database links
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The links below go to external sites and will open in a new browser window |
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Raised in
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Rabbit
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Clonality
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Polyclonal
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Isotype
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IgG
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Purity
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Immunogen affinity purified
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Storage buffer
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Preservative: 0.05% Sodium Azide
Constituents: 50% Glycerol Material safety datasheets (MSDS) for this product:
Glycerol MSDS
Sodium Azide MSDS
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Form
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Liquid
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Concentration
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1.000 mg/ml
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Storage instructions
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Shipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.
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At Abcam, we have one centralized database to hold all of our product information, so that everything we know about this Kallikrein 4 antibody - Kallikrein loop is on this datasheet. But please do contact us if you would like any reassurance! |
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See below for Kallikrein 4 antibody - Kallikrein loop images, references, products related to ab28564 and other tools.
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Kallikrein 4 antibody - Kallikrein loop images:
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 Western blot - Kallikrein 4 antibody - Kallikrein loop (ab28564)
All lanes : Kallikrein 4 antibody - Kallikrein loop (ab28564) at 1/1000 dilution
Lane 1 : Kallikrein 4 at 0.05 µg
Lane 2 : Kallikrein 4 at 0.01 µg
Lane 3 : Kallikrein 4 at 0.001 µg
Predicted band size : 27 kDa
Observed band size : 32 kDa (why is the actual band size different from the predicted?)
Additional bands at : 49 kDa (possible cleavage fragment).
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Search PubMed (MEDLINE) for references to Kallikrein 4
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Kallikrein 4 antibody - Kallikrein loop - more information
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