Shrimp oncoprotein nm23 is a functional nucleoside diphosphate kinase. 2012

Idania E Quintero-Reyes, and Karina D Garcia-Orozco, and Rocio Sugich-Miranda, and Aldo A Arvizu-Flores, and Enrique F Velazquez-Contreras, and Francisco J Castillo-Yañez, and Rogerio R Sotelo-Mundo
Aquatic Molecular Biology Lab, Centro de Investigación en Alimentación y Desarrollo A.C., Carretera a Ejido la Victoria Km 0.6, Hermosillo, Sonora 83304, Mexico.

Biosynthesis of nucleoside triphosphates is critical for bioenergetics and nucleic acid replication, and this is achieved by nucleoside diphosphate kinase (NDK). As an emerging biological model and the global importance of shrimp culture, we have addressed the study of the Pacific whiteleg shrimp (Litopenaeus vannamei) NDK. We demonstrated its activity and affinity towards deoxynucleoside diphosphates. Also, the quaternary structure obtained by gel filtration chromatography showed that shrimp NDK is a trimer. Affinity was in the micro-molar range for dADP, dGDP, dTDP and except for dCDP, which presented no detectable interaction by isothermal titration calorimetry, as described previously for Plasmodium falciparum NDK. This information is particularly important, as this enzyme could be used to test nucleotide analogs that can block white spot syndrome virus (WSSV) viral replication and to study its bioenergetics role during hypoxia and fasting.

UI MeSH Term Description Entries
D008958 Models, Molecular Models used experimentally or theoretically to study molecular shape, electronic properties, or interactions; includes analogous molecules, computer-generated graphics, and mechanical structures. Molecular Models,Model, Molecular,Molecular Model
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012758 Shellfish Aquatic invertebrates belonging to the phylum MOLLUSCA or the subphylum CRUSTACEA, and used as food.
D015513 Oncogene Proteins Proteins coded by oncogenes. They include proteins resulting from the fusion of an oncogene and another gene (ONCOGENE PROTEINS, FUSION). Oncogene Products,Oncoprotein,Oncoproteins,Oncogene Product,Oncogene Protein,Product, Oncogene,Products, Oncogene,Protein, Oncogene,Proteins, Oncogene
D054778 NM23 Nucleoside Diphosphate Kinases A family of nucleotide diphosphate kinases that play a role in a variety of cellular signaling pathways that effect CELL DIFFERENTIATION; CELL PROLIFERATION; and APOPTOSIS. They are considered multifunctional proteins that interact with a variety of cellular proteins and have functions that are unrelated to their enzyme activity. Nucleoside Diphosphate Kinase A,DR-NM23 Nucleoside Diphosphate Kinase,Expressed in Non-Metastatic Cells 2 Protein,Granzyme A-activated DNase,NDP Kinase A,NM23-H2 Nucleoside Diphosphate Kinase,NM23-H3 Nucleoside Diphosphate Kinase,NM23A Nucleoside Diphosphate Kinases,NM23B Nucleoside Diphosphate Kinase,NME1 Nucleoside Diphosphate Kinase,Nm23-H1 Nucleoside Diphosphate Kinase,Non-Metastatic Cells 1 Protein,Nucleoside Diphosphate Kinase 3,Nucleoside Diphosphate Kinase B,Nucleoside Diphosphate Kinase C,Tumor Metastatic Process-Associated Protein,DR NM23 Nucleoside Diphosphate Kinase,Expressed in Non Metastatic Cells 2 Protein,Granzyme A activated DNase,NM23 H2 Nucleoside Diphosphate Kinase,NM23 H3 Nucleoside Diphosphate Kinase,Nm23 H1 Nucleoside Diphosphate Kinase,Non Metastatic Cells 1 Protein,Tumor Metastatic Process Associated Protein
D020134 Catalytic Domain The region of an enzyme that interacts with its substrate to cause the enzymatic reaction. Active Site,Catalytic Core,Catalytic Region,Catalytic Site,Catalytic Subunit,Reactive Site,Active Sites,Catalytic Cores,Catalytic Domains,Catalytic Regions,Catalytic Sites,Catalytic Subunits,Core, Catalytic,Cores, Catalytic,Domain, Catalytic,Domains, Catalytic,Reactive Sites,Region, Catalytic,Regions, Catalytic,Site, Active,Site, Catalytic,Site, Reactive,Sites, Active,Sites, Catalytic,Sites, Reactive,Subunit, Catalytic,Subunits, Catalytic

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