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Liu Q, Graeff R, Kriksunov IA, Lam CMC, Lee HC, Hao Q. Conformational Closure of the Catalytic Site of Human CD38 Induced by Calcium. Biochemistry 2008; 47:13966-13973. [DOI: 10.1021/bi801642q] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Qun Liu
- MacCHESS, Cornell High Energy Synchrotron Source, and School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, Department of Pharmacology, University of Minnesota, Minneapolis, Minnesota 55455, and Department of Physiology, University of Hong Kong, Hong Kong, China
| | - Richard Graeff
- MacCHESS, Cornell High Energy Synchrotron Source, and School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, Department of Pharmacology, University of Minnesota, Minneapolis, Minnesota 55455, and Department of Physiology, University of Hong Kong, Hong Kong, China
| | - Irina A. Kriksunov
- MacCHESS, Cornell High Energy Synchrotron Source, and School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, Department of Pharmacology, University of Minnesota, Minneapolis, Minnesota 55455, and Department of Physiology, University of Hong Kong, Hong Kong, China
| | - Connie M. C. Lam
- MacCHESS, Cornell High Energy Synchrotron Source, and School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, Department of Pharmacology, University of Minnesota, Minneapolis, Minnesota 55455, and Department of Physiology, University of Hong Kong, Hong Kong, China
| | - Hon Cheung Lee
- MacCHESS, Cornell High Energy Synchrotron Source, and School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, Department of Pharmacology, University of Minnesota, Minneapolis, Minnesota 55455, and Department of Physiology, University of Hong Kong, Hong Kong, China
| | - Quan Hao
- MacCHESS, Cornell High Energy Synchrotron Source, and School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, Department of Pharmacology, University of Minnesota, Minneapolis, Minnesota 55455, and Department of Physiology, University of Hong Kong, Hong Kong, China
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Pfister M, Ogilvie A, da Silva CP, Grahnert A, Guse AH, Hauschildt S. NAD degradation and regulation of CD38 expression by human monocytes/macrophages. EUROPEAN JOURNAL OF BIOCHEMISTRY 2001; 268:5601-8. [PMID: 11683883 DOI: 10.1046/j.1432-1033.2001.02495.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
In recent years, evidence has accumulated that NAD+ serves as a precursor of metabolites that are involved in a number of regulatory processes. In this work we show that extracellularly added NAD+ was rapidly degraded by intact human monocytes to nicotinamide and ADP-ribose. Besides these main products, minor amounts of AMP, ADP and cADP-ribose were formed. Expression of CD38, which has been identified as NAD+-glycohydrolase (EC 3.2.2.6) degrading NAD+ into nicotinamide and ADP-ribose, was determined on freshly isolated human monocytes by flow cytometry and RT-PCR. Upon ligation with anti-CD38 mAb, CD38 underwent internalization, shedding and new expression. As monocytes possess an intracellular CD38 pool, it could serve as a source for newly expressed CD38. Differentiation of monocytes to macrophages resulted in down-regulation of surface expression of CD38. This decrease correlates with a reduction in NADase activity, indicating that the amount of functional active CD38 molecules decrease during differentiation. As CD38 mRNA was found to be diminished in macrophages, regulation of the gene product seems to occur at the level of transcription or mRNA stability.
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Affiliation(s)
- M Pfister
- Department of Immunobiology, Institute of Zoology, University of Leipzig, Germany
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Abstract
Analysis of expression of CD38, CD45R (B220), IgM and IgD on splenic B lymphocytes from mice of different ages demonstrated CD38 on both immature (B220(+), BCR(-)) and mature (B220(+), BCR(+)) B lymphocytes. Similarly, CD38 is expressed as early as B220 on the surface of progenitor B cells in the bone marrow. In spite of expressing of CD38 and IgM, neonatal B cells, in contrast to the adult, failed to proliferate to either anti-CD38 or anti-IgM cross-linking when IL-4 was present. They did, however, respond to LPS and anti-CD40, and by 2 weeks of age they began to respond to anti-CD38 and anti-IgM, reaching adult B cell levels by 4 weeks. Although the distribution of CD38 on adult B cells from most different lymphoid compartments was broadly similar, significantly higher levels of CD38 were expressed on peritoneal B lymphocytes. A detailed analysis, using IgM / IgD ratio and staining with anti-CD5 confirmed that B1 lymphocytes were expressing a high level of CD38. Interestingly, both immature B cells and peritoneal B1 lymphocytes were unresponsive to anti-CD38. However, they were activated by LPS or anti-CD40.
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Affiliation(s)
- Felipe Raúl Donís-Hernández
- Department of Molecular Biomedicine, Centro de Investigación y Estudios Avanzados del I.P.N.México D. F., México
| | | | - Leopoldo Santos-Argumedo
- Department of Molecular Biomedicine, Centro de Investigación y Estudios Avanzados del I.P.N.México D. F., México
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Tono-Oka S, Hatakeyama M. O-ADP-Ribosylation in the NAD/NADase system: 2-alkanols as efficient substrates. Chem Pharm Bull (Tokyo) 2001; 49:123-5. [PMID: 11201217 DOI: 10.1248/cpb.49.123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Several 2-alkanols (2-propanol, 2-butanol, 2-pentanol, etc.) were examined as substrates for ADP-ribosylation in the NAD/NADase enzymatic system. Even though these secondary alcohols have hydroxy groups that are subject to the steric influence of a methyl group, they were shown to be efficiently ADP-ribosylated. However, in the case of 3-alkanol (3-butanol), only slight ADP-ribosylation was observed. In this enzymatic reaction, 1,2-propanediol provided both 1-O- and 2-O-ADP-ribosylation products in the ratio 1:1 as determined by 1H-NMR spectrometry. On the other hand, an equimolar mixture system of 1- and 2-propanols provided major 1-O- and minor 2-O-ribosylation products in the ratio 4:1. This is the first report of O-ADP-ribosylation of terminal secondary alcohols with the NAD/NADase enzymatic system.
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Affiliation(s)
- S Tono-Oka
- Division of Molecular Oncology, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan.
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