These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Cloning and expression of a human placenta inositol 1,3,4,5-tetrakisphosphate and phosphatidylinositol 3,4,5-trisphosphate 5-phosphatase.
    Author: Drayer AL, Pesesse X, De Smedt F, Woscholski R, Parker P, Erneux C.
    Journal: Biochem Biophys Res Commun; 1996 Aug 05; 225(1):243-9. PubMed ID: 8769125.
    Abstract:
    Distinct inositol and phosphatidylinositol polyphosphate 5-phosphatases have recently been cloned. Primers were designated coding for highly conserved amino acid regions that are shared between sequences of 5-phosphatases. We used degenerate primers to amplify polymerase chain reaction products from rat brain cDNA. A product with a novel sequence was identified and used to clone a 4.9 kb cDNA from human placenta cDNA libraries (hp51CN). COS-7 cells transfected with a C-terminal truncated form of this cDNA showed an increase in Ins(1,3,4,5)P4 and PtdIns(3,4,5)P3 hydrolyzing activity, but not in Ins(1,4,5)P3 5-phosphatase. Enzymatic activity was inhibited in the presence of 2,3-bisphosphoglycerate and p-hydroxymercuribenzoate. The presence of an SH2 domain and proline-rich sequence motifs within hp51CN suggests that this 5-phosphatase interacts with various proteins in signal transduction.
    [Abstract] [Full Text] [Related] [New Search]