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Recombinant Mouse DPPIV/CD26 Protein, CF

Catalog #: 954-SE
5 Citations Datasheet
Catalog # Availability Size / Price Qty
954-SE-010
R&D Systems Recombinant Proteins and Enzymes
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Citations (5)
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Recombinant Mouse DPPIV/CD26 Protein, CF Summary

Product Specifications

Purity
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin Level
<1.0 EU per 1 μg of the protein by the LAL method.
Activity
Measured by its ability to cleave the fluorogenic peptide substrate, Gly-Pro-7-amido-4-methylcoumarin (GP-AMC). The specific activity is >2,500 pmol/min/µg, as measured under the described conditions.
Source
Mouse myeloma cell line, NS0-derived mouse DPPIV/CD26 protein
Ser29-His760, with a C-terminal 9-His tag
Accession #
P28843
N-terminal Sequence
Analysis
Ser29
Predicted Molecular Mass
86 kDa
SDS-PAGE
105 kDa, reducing conditions

Product Datasheets

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954-SE

Product Datasheet

Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.

954-SE

Formulation Supplied as a 0.2 μm filtered solution in Tris and NaCl.
Shipping The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 6 months from date of receipt, -20 to -70 °C as supplied.
  • 3 months, -20 to -70 °C under sterile conditions after opening.

Assay Procedure

Materials
  • Assay Buffer: 25 mM Tris, pH 8.0
  • Recombinant Mouse DPPIV/CD26 (rmCD26) (Catalog # 954-SE)
  • Substrate: Gly-Pro-AMC (Bachem, Catalog # I-1225), 10 mM stock in DMSO.
  • F16 Black Maxisorp Plate (Nunc, Catalog # 475515)
  • Fluorescent Plate Reader (Model: SpectraMax Gemini EM by Molecular Devices) or equivalent
  1. Dilute rmCD26 to 0.2 ng/µL in Assay Buffer.
  2. Dilute Substrate to 40 µM in Assay Buffer.
  3. In a plate load 50 µL of 0.2 ng/µL rmCD26 and start the reaction by adding 50 µL of 40 µM Substrate. Include a Substrate blank containing 50 µL Assay Buffer and 50 µL of Substrate.
  4. Read at excitation and emission wavelengths of 380 nm and 460 nm, respectively in kinetic mode for 5 minutes.
  5. Calculate specific activity:

     Specific Activity (pmol/min/µg) =

 Adjusted Vmax* (RFU/min) x Conversion Factor** (pmol/RFU)
amount of enzyme (µg)

     *Adjusted for Substrate Blank
     **Derived using calibration standard 7-amino, 4-Methyl Coumarin (Sigma, Catalog # A-9891).

Per Well:
  • rmCD26: 0.010 µg
  • Substrate: 20 µM

Background: DPPIV/CD26

DPPIV/CD26 (EC 3.4.14.5) is a serine exopeptidase that releases Xaa-Pro dipeptides from the N-terminus of oligo- and polypeptides (1, 2). It is a type II membrane protein consisting of a short cytoplasmic tail, a transmembrane domain, and a long extracellular domain (3‑5). The extracellular domain contains glycosylation sites, a cysteine-rich region and the catalytic active site (Ser, Asp and His charge relay system). The amino acid sequence of the mouse DPPIV/CD26 extracellular domain is 84% and 91% identical to the human and rat counterparts, respectively. In the native state, DPPIV/CD26 is present as a noncovalently linked homodimer on the cell surface of a variety of cell types. The soluble form is also detectable in human serum and other body fluids, the levels of which may have clinical significance in patients with cancer, liver and kidney diseases, and depression.

DPPIV/CD26 plays an important role in many biological and pathological processes. It functions as T cell-activating molecule (THAM). It serves as a cofactor for entry of HIV in CD4+ cells (6). It binds adenosine deaminase, the deficiency of which causes severe combined immunodeficiency disease in humans (7). It cleaves chemokines such as stromal-cell-derived factor 1 alpha and macrophage-derived chemokine (8, 9). It degrades peptide hormones such as glucagon (10). It truncates procalcitonin, a marker for systemic bacterial infections with elevated levels detected in patients with thermal injury, sepsis and severe infection, and in children with bacterial meningitis (11).

References
  1. Misumi, Y. and Y. Ikehara (2004) in Handbook of Proteolytic Enzymes. Barrett, A.J. et al. (eds), p. 1905, Elsevier, London.
  2. Ikehara, Y. et al. (1994) Methods Enzymol. 244:215.
  3. Marguet, D. et al. (1992) J. Biol. Chem. 267:2200.
  4. Bernard, A.M. et al. (1994) Biochemistry 33:15204.
  5. Vivier, I. et al. (1991) J. Immunol. 147:447.
  6. Callebaut, C. et al. (1993) Science 262:2045.
  7. Kameoka, J. et al. (1993) Science 261:466.
  8. Ohtsuki, T. et al. (1998) FEBS Lett. 431:236.
  9. Proost, P. et al. (1999) J. Biol. Chem. 274:3988.
  10. Hinke, S.A. et al. (2000) J. Biol. Chem. 275:3827.
  11. Wrenger, S. et al. (2000) FEBS Lett. 466:155.
Long Name
Dipeptidyl-peptidase IV
Entrez Gene IDs
1803 (Human); 13482 (Mouse); 397492 (Porcine); 102133935 (Cynomolgus Monkey)
Alternate Names
ADABP; ADCP-2; ADCP2DPP IV; Adenosine deaminase complexing protein 2TP103; CD26 antigen; CD26; CD26T-cell activation antigen CD26; dipeptidyl peptidase 4; Dipeptidyl peptidase IV; dipeptidylpeptidase 4; dipeptidyl-peptidase 4; dipeptidylpeptidase IV (CD26, adenosine deaminase complexing protein 2); DPP4; DPPIV; EC 3.4.14.5

Citations for Recombinant Mouse DPPIV/CD26 Protein, CF

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

5 Citations: Showing 1 - 5
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  1. An atlas of O-linked glycosylation on peptide hormones reveals diverse biological roles
    Authors: TD Madsen, LH Hansen, J Hintze, Z Ye, S Jebari, DB Andersen, HJ Joshi, T Ju, JP Goetze, C Martin, MM Rosenkilde, JJ Holst, RE Kuhre, CK Goth, SY Vakhrushev, KT Schjoldage
    Nat Commun, 2020-08-20;11(1):4033.
    Species: Mouse
    Sample Types: Protein
    Applications: Bioassay
  2. Elevated hepatic DPP4 activity promotes insulin resistance and non-alcoholic fatty liver disease
    Authors: C Baumeier, L Schlüter, S Saussentha, T Laeger, M Rödiger, SA Alaze, L Fritsche, HU Häring, N Stefan, A Fritsche, RW Schwenk, A Schürmann
    Mol Metab, 2017-08-04;6(10):1254-1263.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: Bioassay
  3. Adipocyte Accumulation in the Bone Marrow during Obesity and Aging Impairs Stem Cell-Based Hematopoietic and Bone Regeneration
    Authors: TH Ambrosi, A Scialdone, A Graja, S Gohlke, AM Jank, C Bocian, L Woelk, H Fan, DW Logan, A Schürmann, LR Saraiva, TJ Schulz
    Cell Stem Cell, 2017-03-16;20(6):771-784.e6.
    Species: Mouse
    Sample Types: Cell Culture Supernates
  4. Therapeutic vaccine against DPP4 improves glucose metabolism in mice.
    Authors: Pang, Zhengda, Nakagami, Hironori, Osako, Mariana, Koriyama, Hiroshi, Nakagami, Futoshi, Tomioka, Hideki, Shimamura, Munehisa, Kurinami, Hitomi, Takami, Yoichi, Morishita, Ryuichi, Rakugi, Hiromi
    Proc Natl Acad Sci U S A, 2014-03-17;111(13):E1256-63.
    Species: Mouse
    Sample Types: Serum
    Applications: Bioassay
  5. E3024, 3-but-2-ynyl-5-methyl-2-piperazin-1-yl-3,5-dihydro-4H-imidazo[4,5-d]pyridazin-4-one tosylate, is a novel, selective and competitive dipeptidyl peptidase-IV inhibitor.
    Authors: Yasuda N, Nagakura T, Inoue T, Yamazaki K, Katsutani N, Takenaka O, Clark R, Matsuura F, Emori E, Yoshikawa S, Kira K, Ikuta H, Okada T, Saeki T, Asano O, Tanaka I
    Eur. J. Pharmacol., 2006-08-16;548(1):181-7.
    Species: Mouse
    Sample Types: Pharmaceutical
    Applications: Enzyme Assay

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