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Recombinant Mouse CD38 Protein, CF

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Product Details

Summary
Reactivity MuSpecies Glossary
Applications Enzyme Activity
Format
Carrier-Free

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Recombinant Mouse CD38 Protein, CF Summary

Details of Functionality
Measured by its ability to convert the substrate nicotinamide guanine dinucleotide (NGD+) to cyclic GDP-ribose. Graeff, R.M. et al. (1994) J. Biol. Chem. 269:30260. The specific activity is >50,000 pmol/min/µg, as measured under the described conditions.
Source
Mouse myeloma cell line, NS0-derived mouse CD38 protein
Leu45-Thr304, with a C-terminal 6-His tag
Accession #
N-terminal Sequence
Leu45
Protein/Peptide Type
Recombinant Enzymes
Gene
Cd38
Purity
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Endotoxin Note
<1.0 EU per 1 μg of the protein by the LAL method.

Applications/Dilutions

Dilutions
  • Enzyme Activity
Theoretical MW
31 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
SDS-PAGE
36-43 kDa, reducing conditions

Packaging, Storage & Formulations

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.
Buffer
Supplied as a 0.2 μm filtered solution in Tris and NaCl.
Purity
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Assay Procedure
  • Assay Buffer: 50 mM MES, 50 mM NaCl, pH 6.5
  • Recombinant Mouse CD38 (rmCD38) (Catalog # 4947-AC)
  • Substrate: NGD+ (Sigma, Catalog # N-5131), 10 mM stock in deionized water
  • F16 Black Maxisorp Plate (Nunc, Catalog # 475515)
  • Fluorescent Plate Reader (Model: SpectraMax Gemini EM by Molecular Devices) or equivalent
  1. Dilute rmCD38 to 0.1 ng/µL in Assay Buffer.
  2. Dilute Substrate to 200 µM in Assay Buffer.
  3. Load into a plate 50 µL of 0.1 ng/µL rmCD38, and start the reaction by adding 50 µL of 200 µM Substrate. Include a Substrate Blank containing 50 µL of Assay Buffer and 50 µL of 200 µM Substrate.
  4. Read at excitation and emission wavelengths of 300 nm and 410 nm (top read), 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 cyclic GDP ribose (cGDPR).

Per Well:
  • rmCD38: 0.005 µg
  • Substrate: 100 µM

Notes

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

Alternate Names for Recombinant Mouse CD38 Protein, CF

  • 2'-phospho-ADP-ribosyl cyclase
  • 2'-phospho-ADP-ribosyl cyclase/2'-phospho-cyclic-ADP-ribose transferase (EC:2.4.99.20)
  • 2'-phospho-cyclic-ADP-ribose transferase
  • ADPRC 1
  • ADPRC1
  • ADP-ribosyl cyclase 1
  • ADP-ribosyl Cyclase
  • ADP-ribosyl cyclase/cyclic ADP-ribose hydrolase 1
  • ADP-ribosyl cyclase/cyclic ADP-ribose hydrolase
  • cADPr hydrolase 1
  • CD_antigen: CD38
  • CD38 antigen (p45)
  • CD38 antigen
  • CD38 molecule
  • CD38
  • cluster of differentiation 38
  • Cyclic ADP-ribose hydrolase 1
  • Cyclic ADP-ribose Hydrolase
  • EC 2.4.99.20
  • EC 3.2.2.6
  • EC:3.2.2.6
  • NAD(+) nucleosidase
  • T10

Background

CD38, also known as ADP-ribosyl cyclase and cyclic ADP-ribose hydrolase, is a Type II integral membrane protein. The enzyme is able to transform NAD(P)+ into three different products with calcium mobilizing ability; cyclic ADP-ribose, NAADP+, and ADP-ribose (1). CD38 is expressed in B and T lymphocytes, osteoclasts, and in cardiac, pancreatic, liver and kidney cells (2, 3). Through its production of cyclic ADP-ribose, CD38 modulates calcium-mediated signal transduction in many types of cells, including neutrophils and pancreatic beta  cells (4, 5). CD38 has been shown to regulate oxytocin secretion, and may be involved in the development of complex social behaviors in mammals (6).

  1. Schuber, F. and F.E. Lund (2004) Curr. Mol. Med. 4:249.
  2. Jackson, D.G. and J.I. Bell (1990) J. Immunol. 144:2811.
  3. Sun, L. et al. (1999) J. Cell Biol. 146:1161.
  4. Partida-Sanchez, S. et al. (2001) Nature Med. 7:1209.
  5. Kato, I. et al. (1995) J. Biol. Chem. 270:30045.
  6. Jin, D. et al. (2007) Nature 446:41.

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FAQs for CD38 (4947-AC). (Showing 1 - 1 of 1 FAQ).

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Bioinformatics

Gene Symbol Cd38
Uniprot