PMID: 8603104Mar 27, 1996Paper

Identification of a 200 kDa polypeptide as type 3 phosphatidylinositol 4-kinase from bovine brain by partial protein and cDNA sequencing

Biochimica Et Biophysica Acta
T GehrmannLudwig M G Heilmeyer

Abstract

Two phosphatidylinositol 4-kinase isozymes, type 3 and type 2, have been separated on hydroxylapatite after solubilizing bovine brain microsomes with Triton X-114. Employing a newly developed renaturation procedure following SDS-PAGE, we demonstrate that a 200 kDa polypeptide carries the enzyme activity of this type 3 isoform. Chromatography on hydroxylapatite, Heparin-Sepharose, Superdex 200 and finally SDS-PAGE results in an approximately 30,000-fold purification. Tryptic peptides generated from the 200 kDa polypeptide after SDS-PAGE have been sequenced and the obtained data have been used for constructing and synthesizing degenerated oligonucleotides. Polymerase chain reaction as well as screening of cDNA libraries allowed several clones to be isolated from which a 4.7 kb contiguous sequence can be built up. The open reading frame covers 4.4 kb with a 0.3 kb untranslated 3' end which yields a deduced amino acid sequence of 1,467 amino acids. The C-terminal part of ca. 300 amino acids represents the catalytic domain. Sequence alignment of this domain with the mammalian counterpart, the human type 2 phosphatidylinositol 4-kinase, the yeast kinases STT4 and PIK1, as well as with the catalytic domains of bovine, human, mouse and...Continue Reading

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Citations

Jun 8, 1999·Chemistry and Physics of Lipids·K F Tolias, L C Cantley
Jun 1, 2000·Advances in Enzyme Regulation·N M MaraldiF A Manzoli
Jun 1, 1997·Current Opinion in Neurobiology·T F Martin
Apr 20, 2001·The International Journal of Biochemistry & Cell Biology·G VerebL M Heilmeyer
Mar 1, 1997·The International Journal of Biochemistry & Cell Biology·J J Hsuan, S H Tan
Apr 28, 2001·Biochimica Et Biophysica Acta·L Ekblad, B Jergil
Oct 6, 1998·Annual Review of Biochemistry·D A FrumanL C Cantley
Jun 24, 2006·Trends in Cell Biology·Andras Balla, Tamas Balla
Sep 7, 2002·The Journal of Biological Chemistry·Barbara BarylkoJoseph P Albanesi
Apr 12, 2006·The Journal of Biological Chemistry·Ilona SzivakLudwig M G Heilmeyer
Aug 26, 1998·The Journal of Biological Chemistry·J M StevensonW F Boss
May 4, 2000·American Journal of Physiology. Cell Physiology·A ZólyomiT Balla
May 16, 1997·The Journal of Biological Chemistry·K WongL C Cantley
Dec 5, 1998·Biochimica Et Biophysica Acta·T Balla
Apr 2, 1999·Biochimica Et Biophysica Acta·T GehrmannL M Heilmeyer

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