Reactivity | MuSpecies Glossary |
Applications | Enzyme Activity |
Format | Carrier-Free |
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. |
Dilutions |
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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 |
Storage | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
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Buffer | Supplied as a 0.2 μm filtered solution in Tris and NaCl. |
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Purity | >95%, by SDS-PAGE under reducing conditions and visualized by silver stain. |
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Assay Procedure |
*Adjusted for Substrate Blank
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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).
Transferrin and the blood brain barrier Transferrin, an iron binding protein that facilitates iron uptake in cells, is an integral part of a mechanism that may introduce antibody therapies to the central nervous system. Currently, the brain’s ability to take in antibody therapies i... Read full blog post. |
Multifunctional CD38 CD38 is a 42 kD type II transmembrane glycoprotein that uses nicotinamide adenine dinucleotide (NAD) as a substrate to form cyclic adenosine diphosphate ribose (cADPR). This novel multifunctional ectoenzyme has both cyclase and hydrolase enzymatic act... Read full blog post. |
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