The biochemical effect of Ser167 phosphorylation on Chlamydomonas reinhardtii centrin. 2006

Susan M Meyn, and Christina Seda, and Muriel Campbell, and Kevin L Weiss, and Haitao Hu, and Belinda Pastrana-Rios, and Walter J Chazin
Department of Biochemistry, Center for Structural Biology, 5140 BIOSCI/MRBIII, Vanderbilt University, Nashville, TN 37232-8725, USA.

Centrin is an EF-hand calcium-binding protein found in microtubule organizing centers of organisms ranging from algae and yeast to man. Phosphorylation in the centrin C-terminal domain occurs in mitosis and is associated with alterations in contractile fibers. To obtain insight into the structural basis for the functional effect of phosphorylation, Chlamydomonas reinhardtii centrin C-terminal domain phosphorylated at Ser167 (pCRC-C) has been produced and characterized. The structure of pCRC-C was compared to the unmodified protein by NMR spectroscopy. The effect of phosphorylation on target binding was examined for the complex of pCRC-C and a 19 residue centrin-binding fragment of Kar1. Remarkably, the efficient and selective phosphorylation by PKA was suppressed in the complex. Moreover, comparisons of NMR chemical shift differences induced by phosphorylation reveal a greater effect from phosphorylation in the context of the Kar1 complex than for the free protein. These results directly demonstrate that phosphorylation modulates the structure and biochemical activities of centrin.

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
D010766 Phosphorylation The introduction of a phosphoryl group into a compound through the formation of an ester bond between the compound and a phosphorus moiety. Phosphorylations
D010768 Phosphoserine The phosphoric acid ester of serine. Serine Phosphate,Phosphorylserine,Seryl Phosphate,Phosphate, Serine,Phosphate, Seryl
D011485 Protein Binding The process in which substances, either endogenous or exogenous, bind to proteins, peptides, enzymes, protein precursors, or allied compounds. Specific protein-binding measures are often used as assays in diagnostic assessments. Plasma Protein Binding Capacity,Binding, Protein
D002135 Calcium-Binding Proteins Proteins to which calcium ions are bound. They can act as transport proteins, regulator proteins, or activator proteins. They typically contain EF HAND MOTIFS. Calcium Binding Protein,Calcium-Binding Protein,Calcium Binding Proteins,Binding Protein, Calcium,Binding Proteins, Calcium,Protein, Calcium Binding,Protein, Calcium-Binding
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
D016825 Chlamydomonas reinhardtii A species of GREEN ALGAE. Delicate, hairlike appendages arise from the flagellar surface in these organisms. Chlamydomonas reinhardii,Chlamydomonas reinhardius,Chlamydomonas reinhardtius,reinhardius, Chlamydomonas,reinhardtii, Chlamydomonas
D017434 Protein Structure, Tertiary The level of protein structure in which combinations of secondary protein structures (ALPHA HELICES; BETA SHEETS; loop regions, and AMINO ACID MOTIFS) pack together to form folded shapes. Disulfide bridges between cysteines in two different parts of the polypeptide chain along with other interactions between the chains play a role in the formation and stabilization of tertiary structure. Tertiary Protein Structure,Protein Structures, Tertiary,Tertiary Protein Structures
D055672 Static Electricity The accumulation of an electric charge on a object Electrostatic,Electrostatics,Static Charge,Charge, Static,Charges, Static,Electricity, Static,Static Charges
D017868 Cyclic AMP-Dependent Protein Kinases A group of enzymes that are dependent on CYCLIC AMP and catalyze the phosphorylation of SERINE or THREONINE residues on proteins. Included under this category are two cyclic-AMP-dependent protein kinase subtypes, each of which is defined by its subunit composition. Adenosine Cyclic Monophosphate-Dependent Protein Kinases,Protein Kinase A,cAMP Protein Kinase,cAMP-Dependent Protein Kinases,Cyclic AMP-Dependent Protein Kinase,cAMP-Dependent Protein Kinase,Adenosine Cyclic Monophosphate Dependent Protein Kinases,Cyclic AMP Dependent Protein Kinase,Cyclic AMP Dependent Protein Kinases,Protein Kinase, cAMP,Protein Kinase, cAMP-Dependent,Protein Kinases, cAMP-Dependent,cAMP Dependent Protein Kinase,cAMP Dependent Protein Kinases

Related Publications

Susan M Meyn, and Christina Seda, and Muriel Campbell, and Kevin L Weiss, and Haitao Hu, and Belinda Pastrana-Rios, and Walter J Chazin
January 2013, Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry,
Susan M Meyn, and Christina Seda, and Muriel Campbell, and Kevin L Weiss, and Haitao Hu, and Belinda Pastrana-Rios, and Walter J Chazin
July 2005, Eukaryotic cell,
Susan M Meyn, and Christina Seda, and Muriel Campbell, and Kevin L Weiss, and Haitao Hu, and Belinda Pastrana-Rios, and Walter J Chazin
May 2002, Cell motility and the cytoskeleton,
Susan M Meyn, and Christina Seda, and Muriel Campbell, and Kevin L Weiss, and Haitao Hu, and Belinda Pastrana-Rios, and Walter J Chazin
May 1989, The Journal of cell biology,
Susan M Meyn, and Christina Seda, and Muriel Campbell, and Kevin L Weiss, and Haitao Hu, and Belinda Pastrana-Rios, and Walter J Chazin
January 2006, Calcium binding proteins,
Susan M Meyn, and Christina Seda, and Muriel Campbell, and Kevin L Weiss, and Haitao Hu, and Belinda Pastrana-Rios, and Walter J Chazin
August 1988, The Journal of cell biology,
Susan M Meyn, and Christina Seda, and Muriel Campbell, and Kevin L Weiss, and Haitao Hu, and Belinda Pastrana-Rios, and Walter J Chazin
November 2005, Eukaryotic cell,
Susan M Meyn, and Christina Seda, and Muriel Campbell, and Kevin L Weiss, and Haitao Hu, and Belinda Pastrana-Rios, and Walter J Chazin
May 2008, Acta crystallographica. Section F, Structural biology and crystallization communications,
Susan M Meyn, and Christina Seda, and Muriel Campbell, and Kevin L Weiss, and Haitao Hu, and Belinda Pastrana-Rios, and Walter J Chazin
April 1976, The Journal of biological chemistry,
Susan M Meyn, and Christina Seda, and Muriel Campbell, and Kevin L Weiss, and Haitao Hu, and Belinda Pastrana-Rios, and Walter J Chazin
December 2004, Protoplasma,
Copied contents to your clipboard!