Phosphorylation of inositol 1,4,5-trisphosphate analogues by 3-kinase and dephosphorylation of inositol 1,3,4,5-tetrakisphosphate analogues by 5-phosphatase. 1994

P Van Dijken, and A A Lammers, and S Ozaki, and B V Potter, and C Erneux, and P J Van Haastert
Department of Biochemistry, University of Groningen, The Netherlands.

A series of 32P-labeled D-myo-inositol 1,3,4,5-tetrakisphosphate [Ins(1,3,4,5)P4] analogues was enzymically prepared from the corresponding D-myo-inositol 1,4,5-trisphosphate [Ins(1,4,5)P3] analogues using recombinant rat brain Ins(1,4,5)P3 3-kinase and [gamma-32P]ATP. Ins(1,4,5)P3 analogues with bulky groups at the 2-OH position, substitutions of phosphates by thiophosphates and D-6-deoxy-myo-Ins(1,4,5)P3 were tested. Using [3H]Ins(1,4,5)P3 and ATP gamma S, a [3H]Ins(1,3,4,5)P4 analogue with a thiophosphate at the D-3 position was prepared. The D-4 and/or D-5 phosphate group seemed to be important for 3-kinase activity, while the OH group at position 6 was not crucial. The addition of bulky groups at the 2-OH position did not prevent phosphorylation. The labeled Ins(1,3,4,5)P4 analogues were purified and their degradation by type-I Ins(1,4,5)P3/Ins(1,3,4,5)P4 5-phosphatase was compared with the degradation of Ins(1,3,4,5)P4. Substitution of the phosphate group at positions 1 or 3 by a thiophosphate, or the addition of bulky groups at the 2-OH position did not prevent degradation. D-6-Deoxy-myo-inositol 1,3,4,5-tetrakisphosphate could not be degraded by the 5-phosphatase, indicating the importance of the 6-OH group for 5-phosphatase action. D-6-Deoxy-myo-inositol 1,3,4,5-tetrakisphosphate could be an important tool in elucidating the cellular functions of Ins(1,3,4,5)P4.

UI MeSH Term Description Entries
D007295 Inositol Phosphates Phosphoric acid esters of inositol. They include mono- and polyphosphoric acid esters, with the exception of inositol hexaphosphate which is PHYTIC ACID. Inositol Phosphate,Phosphate, Inositol,Phosphates, Inositol
D010744 Phosphoric Monoester Hydrolases A group of hydrolases which catalyze the hydrolysis of monophosphoric esters with the production of one mole of orthophosphate. Phosphatase,Phosphatases,Phosphohydrolase,Phosphohydrolases,Phosphomonoesterase,Phosphomonoesterases,Phosphoric Monoester Hydrolase,Hydrolase, Phosphoric Monoester,Hydrolases, Phosphoric Monoester,Monoester Hydrolase, Phosphoric
D010761 Phosphorus Radioisotopes Unstable isotopes of phosphorus that decay or disintegrate emitting radiation. P atoms with atomic weights 28-34 except 31 are radioactive phosphorus isotopes. Radioisotopes, Phosphorus
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
D011994 Recombinant Proteins Proteins prepared by recombinant DNA technology. Biosynthetic Protein,Biosynthetic Proteins,DNA Recombinant Proteins,Recombinant Protein,Proteins, Biosynthetic,Proteins, Recombinant DNA,DNA Proteins, Recombinant,Protein, Biosynthetic,Protein, Recombinant,Proteins, DNA Recombinant,Proteins, Recombinant,Recombinant DNA Proteins,Recombinant Proteins, DNA
D001921 Brain The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM. Encephalon
D000072181 Inositol Polyphosphate 5-Phosphatases Phosphoinositide phosphatases that catalyze the removal of the 5' phosphate from INOSITOL 1,4,5-TRISPHOSPHATE or myo-inositol 1,3,4,5-tetrakisphosphate, resulting in inositol 1,4-bisphosphate and phosphate. They have important functions in the metabolism of INOSITOL PHOSPHATES and inositol 1,4,5-trisphosphate signaling pathways such as CALCIUM SIGNALING. 1,4,5-Triphosphate-1,2,4,5-Tetrakisphosphate 5-Phosphatase,Inositol 5-Phosphatase,Inositol Polyphosphate 5-Phosphatase,Inositol Triphosphate 5-Phosphatase,Inositol-1,4,5-Trisphosphate 5'-Phosphatase,Inositol-1,4,5-Trisphosphate 5-Phosphatase,Inositol-Polyphosphate 5-Phosphatase,Ins(1,4,5)P3 5'-Phosphatase,Inositol 5 Phosphatase,Inositol Polyphosphate 5 Phosphatase,Inositol Polyphosphate 5 Phosphatases,Inositol Triphosphate 5 Phosphatase
D000255 Adenosine Triphosphate An adenine nucleotide containing three phosphate groups esterified to the sugar moiety. In addition to its crucial roles in metabolism adenosine triphosphate is a neurotransmitter. ATP,Adenosine Triphosphate, Calcium Salt,Adenosine Triphosphate, Chromium Salt,Adenosine Triphosphate, Magnesium Salt,Adenosine Triphosphate, Manganese Salt,Adenylpyrophosphate,CaATP,CrATP,Manganese Adenosine Triphosphate,MgATP,MnATP,ATP-MgCl2,Adenosine Triphosphate, Chromium Ammonium Salt,Adenosine Triphosphate, Magnesium Chloride,Atriphos,Chromium Adenosine Triphosphate,Cr(H2O)4 ATP,Magnesium Adenosine Triphosphate,Striadyne,ATP MgCl2
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
D013329 Structure-Activity Relationship The relationship between the chemical structure of a compound and its biological or pharmacological activity. Compounds are often classed together because they have structural characteristics in common including shape, size, stereochemical arrangement, and distribution of functional groups. Relationship, Structure-Activity,Relationships, Structure-Activity,Structure Activity Relationship,Structure-Activity Relationships

Related Publications

P Van Dijken, and A A Lammers, and S Ozaki, and B V Potter, and C Erneux, and P J Van Haastert
October 1994, Cell calcium,
P Van Dijken, and A A Lammers, and S Ozaki, and B V Potter, and C Erneux, and P J Van Haastert
January 2024, Research and practice in thrombosis and haemostasis,
P Van Dijken, and A A Lammers, and S Ozaki, and B V Potter, and C Erneux, and P J Van Haastert
August 1993, British journal of pharmacology,
P Van Dijken, and A A Lammers, and S Ozaki, and B V Potter, and C Erneux, and P J Van Haastert
February 1989, Biochemical Society transactions,
P Van Dijken, and A A Lammers, and S Ozaki, and B V Potter, and C Erneux, and P J Van Haastert
September 1996, FEBS letters,
P Van Dijken, and A A Lammers, and S Ozaki, and B V Potter, and C Erneux, and P J Van Haastert
April 1991, Biochemical Society transactions,
P Van Dijken, and A A Lammers, and S Ozaki, and B V Potter, and C Erneux, and P J Van Haastert
February 1998, The Journal of biological chemistry,
P Van Dijken, and A A Lammers, and S Ozaki, and B V Potter, and C Erneux, and P J Van Haastert
October 2005, Biochemical and biophysical research communications,
P Van Dijken, and A A Lammers, and S Ozaki, and B V Potter, and C Erneux, and P J Van Haastert
March 1991, The Biochemical journal,
Copied contents to your clipboard!