Legumain/Asparaginyl Endopeptidase Antibody [Biotin]

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Product Details

Summary
Reactivity HuSpecies Glossary
Applications WB, ELISA(Det)
Clonality
Polyclonal
Host
Goat
Conjugate
Biotin
Concentration
LYOPH

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Catalog# & Conjugate Size Price
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Legumain/Asparaginyl Endopeptidase Antibody [Biotin] Summary

Immunogen
Mouse myeloma cell line NS0-derived recombinant human Legumain/Asparaginyl Endopeptidase
Ile18-Tyr433
Accession # Q99538
Specificity
Detects human Legumain/Asparaginyl Endopeptidase in ELISAs and Western blots. In sandwich immunoassays, less than 0.1% cross‑reactivity with recombinant mouse Legumain is observed.
Source
N/A
Isotype
IgG
Clonality
Polyclonal
Host
Goat
Gene
LGMN
Purity Statement
Antigen Affinity-purified
Innovator's Reward
Test in a species/application not listed above to receive a full credit towards a future purchase.

Applications/Dilutions

Dilutions
  • ELISA Capture (Matched Antibody Pair) 2-8 ug/mL
  • ELISA Detection (Matched Antibody Pair) 0.1-0.4 ug/mL
  • ELISA Standard (Matched Pair)
  • Western Blot 0.1 ug/mL
Application Notes
ELISA Capture: Human Legumain/Asparaginyl Endopeptidase Antibody (Catalog # MAB21992)
ELISA Detection: Human Legumain/Asparaginyl Endopeptidase Biotinylated Antibody (Catalog # BAF2199)
Standard: Recombinant Human Legumain/Asparaginyl Endopeptidase (Catalog # 2199-CY)
Readout System

Packaging, Storage & Formulations

Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Buffer
Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
Preservative
No Preservative
Concentration
LYOPH
Reconstitution Instructions
Reconstitute at 0.2 mg/mL in sterile PBS.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Legumain/Asparaginyl Endopeptidase Antibody [Biotin]

  • AEP
  • Asparaginyl Endopeptidase
  • cysteine protease 1
  • Legumain
  • LGMN
  • LGMN1
  • Protease, cysteine 1
  • protease, cysteine, 1 (legumain)
  • PRSC1EC 3.4.22.34

Background

Legumain is a lysosomal cysteine protease whose activity is found in several tissues tested (1, 2). Legumain plays a pivotal role in the endosomal/lysosomal degradation system because the Legumain deficiency causes the accumulation of pro cathepsins B, H and L, another group of lysosomal cysteine proteases (3). Over-expression of Legumain in tumors is significant for invasion/metastasis (4). Also known as Asparaginyl Endopeptidase, it specifically cleaves peptide bonds with Asn at the P1 position. Nevertheless, it also cleaves peptide bonds with Asp at the P1 position. Auto-activation of pro Legumain involves both types of the cleavage, which result in the removal of the pro peptides in both C- and N-termini (5). In addition, Legumain activates pro MMP-2 and processes bacterial antigens for MHC class II presentation and pro thymosin alpha to thymosin alpha 1 and thymosin alpha 11, two acidic peptides with immunoregulatory properties (6‑8). Human Legumain is synthesized as a 433 amino acid precursor with a signal peptide (residues 1‑17). The pro enzyme (residues 18‑433) was expressed with an N-terminal His tag. This activity of Legumain can be inhibited by rhCystatins C and E/M and recombinant mouse Cystatin C (R&D Systems, Catalog # 1196-PI, 1286-PI and 1238-PI, respectively).

  1. Chen, J.-M. et al. (1997) J. Biol. Chem. 272:8090.
  2. Tanaka, T. et al. (1996) Cytogenet. Cell Genet. 74:120.
  3. Shirahama-Noda, K. et al. (2003) J. Biol. Chem. 278:33194.
  4. Liu, C. et al. (2003) Cancer Res. 63: 2957.
  5. Li D.N. et al. (2003) J. Biol. Chem. 278:38980.
  6. Chen, J.M. et al. (2001) Biol. Chem. 382:777.
  7. Schwarz, G. et al. (2002) Biol. Chem. 383:1813.
  8. Sarndeses, C.S. et al. (2003) J. Biol. Chem. 278:13286.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Bioinformatics

Gene Symbol LGMN
Uniprot