High Activity of the Calcineurin A Subunit with a V314 Deletion
-
Lijun Yan
Abstract
A deletion mutant (V314) of the calcineurin A subunit was constructed using site-directed mutagenesis. Its phosphatase activity and function were then characterized. The V314 deletion significantly altered the phosphatase activity, which was more than ten times higher than that of wild-type calcineurin, the calcineurin- immunosuppressant/immunophilin interaction, the effect of metal ions and calcineurin subunit interaction. We propose that the change of the activity and function of V314 is due to conformational changes of calcineurin to benefit the binding of, or stimulation by, Mn2+, or to affect the interaction between the A and B subunits.
Copyright © 1999 by Walter de Gruyter GmbH & Co. KG
Artikel in diesem Heft
- Secretory Immunoglobulin A: from Mucosal Protection to Vaccine Development
- Cloning of karyopherin-α3 from Drosophila Through Its Interaction with the Nuclear Localization Sequence of Germ Cell-Less Protein
- Regulation of Bile Salt Export Pump mRNA Levels by Dexamethasone and Osmolarity in Cultured Rat Hepatocytes
- High Activity of the Calcineurin A Subunit with a V314 Deletion
- Synthesis, Cytotoxicity and Antitumor Activity of Platinum(II) Complexes of Cyclopentanecarboxylic Acid Hydrazide
- Prion Rods Contain an Inert Polysaccharide Scaffold
- Mass Spectrometric Characterisation of Post-Translational Modification and Genetic Variation in Human Tetranectin
- Complete Amino Acid Sequence Determination of the Major Allergen of Peach (Prunus persica) Pru p1
- Identification of Immunoreactive Tissue Prokallikrein on the Surface Membrane of Human Neutrophils
- An Evaluation of Techniques for the Extraction and Amplification of DNA from Naturally Shed Hairs
- Isolation of Two Novel Alternative Splicing Variants of Allograft Inflammatory Factor-1
- Differential Regulation of Lipid and Protein Kinase Activities of Phosphoinositide 3-Kinase γ in Vitro
- The Anti-Estrogen Hydroxytamoxifen Is a Potent Antagonist in a Novel Yeast System
Artikel in diesem Heft
- Secretory Immunoglobulin A: from Mucosal Protection to Vaccine Development
- Cloning of karyopherin-α3 from Drosophila Through Its Interaction with the Nuclear Localization Sequence of Germ Cell-Less Protein
- Regulation of Bile Salt Export Pump mRNA Levels by Dexamethasone and Osmolarity in Cultured Rat Hepatocytes
- High Activity of the Calcineurin A Subunit with a V314 Deletion
- Synthesis, Cytotoxicity and Antitumor Activity of Platinum(II) Complexes of Cyclopentanecarboxylic Acid Hydrazide
- Prion Rods Contain an Inert Polysaccharide Scaffold
- Mass Spectrometric Characterisation of Post-Translational Modification and Genetic Variation in Human Tetranectin
- Complete Amino Acid Sequence Determination of the Major Allergen of Peach (Prunus persica) Pru p1
- Identification of Immunoreactive Tissue Prokallikrein on the Surface Membrane of Human Neutrophils
- An Evaluation of Techniques for the Extraction and Amplification of DNA from Naturally Shed Hairs
- Isolation of Two Novel Alternative Splicing Variants of Allograft Inflammatory Factor-1
- Differential Regulation of Lipid and Protein Kinase Activities of Phosphoinositide 3-Kinase γ in Vitro
- The Anti-Estrogen Hydroxytamoxifen Is a Potent Antagonist in a Novel Yeast System