Summary
A 1,820bp full-length clone encoding for a new human protein was isolated from a λgt11 placental cDNA library using anti-human hexokinase antibodies. The cDNA complete sequence includes a 12 by 5′ noncoding region, a single open reading frame encoding a protein of 55 KDa (HP-10) and a 177 by non-coding with two putative polyadenylation signals upstream of 3′poly(A)tail. The deduced amino acid sequence reveals a sequence of 492 amino acids that contains a stretch of 7 glutamic acid from position 169 and one potential glycosylation site at position 274. Although antibodies against hexokinase recognize the fusion protein and antibodies against the fusion protein recognize hexokinase, HP-10 is not human hexokinase, by a number of criteria including the alignment of determined amino acid sequences.
In searching for a possible functional role of HP-10 its cDNA was inserted into a procaryotic vector which allows the expression of the non-fused protein. Bacteria expressing the HP-10 encoded protein were isolated and found to have a dramatic increase in endogenous phosphorylated proteins. Since HP-10 does not have a protein kinase activity per se it should be considered a new regulatory phosphorylation protein which is active in E. coli
Similar content being viewed by others
Abbreviations
- HK:
-
Hexokinase (EC 2.7.1.1)
References
Edelman AM, Blumenthal DK, Krebs EG: In: CC Riehardson, PD Boyer, IB David, A Meister (eds.) Protein serine/threonine kinases. Ann Rev Biochem. Annual Reviews Inc, Palo Alto, vol. 56, 1987, pp 567–613
Krebs EG: In: PD Boyer (ed.) The enzymes. Academic Press, New York, vol 17, 1986, pp 3–18
McVey D, Brizuela L, Mohr I, Marshak DR, Glizman Y, Beach D: Phosphorylation of large tumor antigen by cdc2 stimulates SV40 DNA replication, Nature 341: 503–507, 1989
Murray AV: The cell cycle as a cdc 2 cycle. Nature 342: 14–15, 1989
Gould KL, Nurse P: Tyrosine phosphorylation of the fission yeast cdc2+ protein kinase regulates entry into mitosis. Nature 342: 39–45, 1989
Varms H: The molecular basis of blood diseases. In: G Stomatoyannopoulos, AW Nienhuis, P Leder, PW Majerus (eds.) Saunders, Philadelphia, 1987, pp 271–346
Saier MH, Wu LF Jr, Reizer J: Regulation of bacterial physiological processes by three types of protein phosphorylating systems. TIBS 15: 391–395, 1990
Magnani M, Stocchi V, Serafini G, Chiarantini L, Fornaini G: Purification, properties and evidence for two subtypes of human placenta hexokinase type I. Arch Biochem Biophys 260: 388–399, 1988
Hunkapillar MV, Lujan E, Ostander F, Hood LE: Isolation of microgram quantities of proteins from polyacrylamide gels for amino acid sequence analysis. In: CHW Hirs, SN Timasheff (eds.) Methods in Enzymology. Academic Press, Orlando, vol 91, 1983, pp 227–236
Miller JM: Experiments in Molecular Genetics. Cold Spring Harbor Laboratory, New York, 1972
Allen G: In: TS Work, RH Burdon (eds.) Sequencing of Proteins and Peptides: Laboratory techniques in Biochemistry and Molecular Biology. 1981, Elsevier/North Holland, New York
Chang JY: Manual micro-sequence analysis of polypeptides using dimethylaminoazobenzene isothiocyanate. In: CHW Hirs, SN Timasheff (eds.) Methods in Enzymology. Academic Press, New York, vol 91, 1983, pp 455–466
Chang JY, Brauer D, Wittmann-Liebold B: Micro-sequence analysis of peptides and proteins using 4-NN-dimethylaminoazobenzene 4′-isothiocyanate/phenylisothiocyanate double coupling method. FEBS Lett 93: 205–214, 1978
Stocchi V, Piccoli G, Magnani M, Palma F, Biagiarelli B, Cucchiarini L: Reversed-phase high-performance liquid chromatography separation of dimethylaminoazobenzene thiohydantoin-amino acid derivatives for amino acid analysis and microsequencing studies at the picomole level. Anal Biochem: 107–117, 1989
Chomczymski P, Sacchi N: Single-step method of RNA isolation by acid guanidium thiocynate-phenol-chloroform extraction. Anal Biochem 162: 156–159, 1987
Gubler U, Hoffman BJ: A simple and very efficient method for generation c-DNA libraries. Gene 25: 263–271, 1983
Young RA, Davis RW: Efficient isolation of genes by using antibody probes. Proc Natl Acad Sci USA 80: 1194–1198, 1983
Sanger F, Nicklen S, Culson AR: DNA sequencing with chain terminating inhibitors. Proc Natl Acad Sci USA 74: 5463–5467, 1977
Lipman DJ, Pearson WR: Rapid and sensitive protein similarity searches. Science 227: 1435–1441, 1985
Thomas PS: Hybridization of denatured RNA transferred or dotted to nitrocellulose paper. In: R Wu, L Grossman, K Moldave (eds.) Methods in Enzymology. Academic Press, Orlando, vol 100, 1983, pp 255–266
Wang JYJ, Queen C, Baltimore D: Expression of an abelson murine leukemia virus-enclosed protein in Escherichia coli causes extensive phosphorylation of tyrosine residues. J Biol Chem 257: 13181–13184, 1982
Nishi S, Seino S, Bell GI: Human hexokinase: sequences of amino and carboxyl-terminal halves are homologous. Biochem Biophys Res Commun 157: 937–943, 1988
Schwab DA, Wilson JE: Complete amino acid sequence of rat brain hexokinase, deduced from the cloned cDNA, a proposed structure of a mammalian hexokinase. Proc Natl Acad Sci USA 86: 2563–2567, 1989
Arora KK, Fanciulli M, Pedersen PL: Glucose phosphorylation in tumor cells. Cloning, sequencing, and overexpression in active form of a full-length cDNA encoding a mitochondrial bindable form of hexokinase. J Biol Chem 265: 6481–6488, 1990
Wang JYJ, Koshland DE Jr: Regulatory protein phosphorylation in the prokariote Salmonella typhimurium. Cold String Harbor Cord Cell Proliferation 8: 637–643, 1981
Colowick SP: The Hexokinases. In: PD Boyer (ed.) The Enzymes. Academic Press, New York, 3rd ed, vol 9, 1973, pp 1–48
Schirch DM, Wilson JE: Rat brain hexokinase: amino acid sequence at the substrate hexose binding site is homologous to that of yeast hexokinase. Arch Biochem Biophys 257: 1–12, 1987
Nishizuka Y: The molecular heterogeneity of protein kinase C and its implications for cellular regulation, Nature 334: 661–665, 1988
Mozier NM, Zurcher-Neerly HA, Guido DM, Mathews WR, Heinrikson RL, Fraser ED, Walsh MP, Pearson JD: Amino acid sequence of a 12-KDa inhibitor of protein kinase C. Eur J Biochem 134: 19–23, 1990
Melloni E, Pontremoli S, Michetti M, Sacco O, Sparatore B, Horecker BL: The involvement of Calpain in the activation of Protein Kinase C in neutrophils by phorbol mizistic acid. J Biol Chem 261: 4101–4105, 1986
Huang FL, Glinsmann WL: Separation and characterization of two phosphorylase phosphatase inhibitor from rabbit skeletal muscle. Eur J Biochem 70: 419–426, 1976
Kyte J, Doolittle RF: A simple method for displaying the hydropathic character of a protein. J Mol Biol 157: 105–132, 1982
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Daniele, A., Altruda, F., Ferrone, M. et al. Cloning and expression of a new human polypeptide which regulates protein phosphorylation in Escherichia coli. Mol Cell Biochem 107, 87–94 (1991). https://doi.org/10.1007/BF00225511
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00225511