Mouse Legumain ELISA Kit | Lgmn elisa kit
Mouse Legumain(total) PicoKine ELISA Kit
O.D.: |0.014|0.136|0.185|0.299|0.505|0.863|1.570|2.304
n: |16|16|16|24|24|24
Mean(pg/ml): |45|157|679|51|230|857
Standard Deviation: |2.39|10.83|45.50|3.16|13.58|35.14
CV(%): |5.3|6.9|6.7|6.2|5.9|4.1
Background: Legumain (asparaginyl endopeptidase, citvac, proteinase B, hemoglobinase, PRSC1 gene product or LGMN (Homo sapiens), vicilin peptidohydrolase, bean endopeptidase) is an enzyme that in humans is encoded by the LGMN gene (previous symbolPRSC1). Using fluorescence in situ hybridization, the LGMN gene was mapped to chromosome 14q32.1. This enzyme may be involved in the processing of bacterial peptides and endogenous proteins for MHC class II presentation in the lysosomal/endosomal systems. Enzyme activation is triggered by acidic pH and appears to be autocatalytic. Protein expression occurs after monocytes differentiate into dendritic cells. A fully mature, active enzyme is produced following lipopolysaccharide expression in mature dendritic cells. Overexpression of this gene may be associated with the majority of solid tumor types.
Principle: Mouse Legumain(total) ELISA Kit was based on standard sandwich enzyme-linked immune-sorbent assay technology. A monoclonal antibody from Rat specific for Legumain(total) has been precoated onto 96-well plates. Standards(Expression system for standard: NSO, Immunogen sequence: V18-Y435) and test samples are added to the wells, a biotinylated detection polyclonal antibody from goat specific for Legumain(total) is added subsequently and then followed by washing with PBS or TBS buffer. Avidin-Biotin-Peroxidase Complex was added and unbound conjugates were washed away with PBS or TBS buffer. HRP substRate TMB was used to visualize HRP enzymatic reaction. TMB was catalyzed by HRP to produce a blue color product that changed into yellow after adding acidic stop solution. The density of yellow is proportional to the Mouse Legumain(total) amount of sample captured in plate.
NCBI and Uniprot Product Information
NCBI Description
This gene encodes a member of the cysteine peptidase family C13 that plays an important role in the endosome/lysosomal degradation system. The encoded inactive preproprotein undergoes autocatalytic removal of the C-terminal inhibitory propeptide to generate the active endopeptidase that cleaves protein substrates on the C-terminal side of asparagine residues. Mice lacking the encoded protein exhibit defects in the lysosomal processing of proteins resulting in their accumulation in the lysosomes, and develop symptoms resembling hemophagocytic lymphohistiocytosis. [provided by RefSeq, Aug 2016]
Uniprot Description
LGMN: Has a strict specificity for hydrolysis of asparaginyl bonds. Can also cleave aspartyl bonds slowly, especially under acidic conditions. May be involved in the processing of proteins for MHC class II antigen presentation in the lysosomal/endosomal system. Belongs to the peptidase C13 family.
Protein type: EC 3.4.22.34; Protease
Chromosomal Location of Human Ortholog: 12|12 E
Cellular Component: apical part of cell; late endosome; lysosome
Molecular Function: cysteine-type endopeptidase activity; peptidase activity
Biological Process: negative regulation of multicellular organism growth; negative regulation of neuron apoptosis; proteolysis; proteolysis involved in cellular protein catabolic process; receptor catabolic process; renal system process; response to acidity; vacuolar protein processing