Human CPE ELISA Kit - Intracellular is a Sandwich (quantitative) ELISA kit for the measurement of Human CPE - Intracellular in Human in Tissue Extracts, Cell Lysate samples.
Colorimetric
Tissue Extracts, Cell Lysate
Sandwich (quantitative)
Human
125 - 8000 pg/mL
1h 30m
= 35 pg/mL
Application | Reactivity | Dilution info | Notes |
---|---|---|---|
Application sELISA | Reactivity Reacts | Dilution info - | Notes - |
Sorting receptor that directs prohormones to the regulated secretory pathway. Acts also as a prohormone processing enzyme in neuro/endocrine cells, removing dibasic residues from the C-terminal end of peptide hormone precursors after initial endoprotease cleavage.
Carboxypeptidase E, CPE, Carboxypeptidase H, Enkephalin convertase, Prohormone-processing carboxypeptidase, CPH, CPE
Human CPE ELISA Kit - Intracellular is a Sandwich (quantitative) ELISA kit for the measurement of Human CPE - Intracellular in Human in Tissue Extracts, Cell Lysate samples.
Colorimetric
Tissue Extracts, Cell Lysate
Sandwich (quantitative)
Human
125 - 8000 pg/mL
1h 30m
Pre-coated microplate (12 x 8 well strips)
= 35 pg/mL
104%
Sample | n | mean | SD | C.V. |
---|---|---|---|---|
Sample Extract | n 8 | mean - | SD - | C.V. 2.6 |
Sample | n | mean | SD | C.V. |
---|---|---|---|---|
Sample Extract | n 3 | mean - | SD - | C.V. 2 |
Sample type | Average % | Range |
---|---|---|
Sample type Tissue Extracts | Average % = 105 | Range 99 - 108 % |
Sample type Cell Lysate | Average % = 92 | Range 89 - 95 % |
Blue Ice
+4°C
+4°C
+4°C
Human CPE - Intracellular SimpleStep ELISA® kit is a single-wash 90 min sandwich ELISA designed for the quantitative measurement of CPE - Intracellular protein in human cell lysates and tissue extracts. Quantitate Human CPE - Intracellular with 14 pg/ml sensitivity.
SimpleStep ELISA® technology employs capture antibodies conjugated to an affinity tag that is recognized by the monoclonal antibody used to coat our SimpleStep ELISA® plates. This approach to sandwich ELISA allows the formation of the antibody-analyte sandwich complex in a single step, significantly reducing assay time. See the SimpleStep ELISA® protocol summary in the image section for further details. Our SimpleStep ELISA® technology provides several benefits:
-Single-wash protocol reduces assay time to 90 minutes or less
-High sensitivity, specificity and reproducibility from superior antibodies
-Fully validated in biological samples
-96-wells plate breakable into 12 x 8 wells strips
A 384-well SimpleStep ELISA® microplate (Pre-coated 384 well Microplate SimpleStep ELISA® ab203359) is available to use as an alternative to the 96-well microplate provided with SimpleStep ELISA® kits.
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This supplementary information is collated from multiple sources and compiled automatically.
Carboxypeptidase E (CPE) also known as carboxypeptidase H is an enzyme with a mass of about 53 kDa. It facilitates the removal of C-terminal amino acid residues from proteins and peptides. CPE is primarily expressed in endocrine and neuroendocrine tissues including the brain pituitary and pancreas. Its expression in these areas suggests significant involvement in the processing and regulation of peptide hormones and neurotransmitters.
CPE influences the maturation of peptide hormones and neurotransmitters converting inactive precursors into active forms. CPE does not function as part of a larger complex but acts independently to cleave the C-terminal residues. Its activity plays a role in the biosynthesis of hormones like insulin and proinsulin regulating energy homeostasis and metabolic processes.
The activities of enzymes like CPE are integral to the prohormone and neuropeptide processing pathways. Within these pathways CPE works alongside other processing enzymes such as prohormone convertases to ensure proper hormone maturation and secretion. In these pathways CPE connects with proteins like chromogranin A which assists in the storage and trafficking of secretory granules in neuroendocrine cells.
Dysregulation of CPE has links to obesity and type 2 diabetes due to its role in peptide hormone processing. Altered CPE function can impair the maturation of insulin and other hormones contributing to these metabolic conditions. In addition relationships between CPE and other proteins such as proinsulin and insulin further highlight its significance in the pathology of these diseases.
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Interpolated concentration of native CPE was measured in duplicate at different sample concentrations. Undiluted samples are as follows: human brain cortex tissue extract 35 µg/mL and SH-SY5Y cell extract 75 µg/mL. The interpolated dilution factor corrected values are plotted (mean +/- SD, n=2). Sample dilutions are made in 1X Cell Extraction Buffer PTR.
Example of human CPE standard curve. Background-subtracted data values (mean +/- SD) are graphed.
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