Abstract
Immunofluorescent studies with anti-2A antisera, raised specifically against a synthetic C-terminal peptide of native murine P70, the testes-specific cognate heat shock protein 70, demonstrated that the rat homologue of P70 is expressed on the surface of testicular cells. The murine hsp 70.2 gene, encoding P70, was cloned and expressed in Escherichia coli. The recombinant P70 (rP70) protein with a 6Xhistidine affinity tag at its amino terminus was purified from E. coli via nickel affinity column chromatography. Monoclonal anti-hsp70 antisera and anti-2A antisera cross-reacted with purified rP70. Binding of rP70 was specific for sulfogalactosylceramide (SGC) and sulfogalactosyglycerolipid (SGG). Binding was not inhibited by the sugar, galactose 3′ sulfate, nor was binding observed to desulfated derivatives of SGC and SGG, to other negatively charged lipids or other sulfated lipids. Furthermore, rP70 bound to an SGC-column and was eluted only at high salt in combination with high pH. These results show rP70 to possess a specific sulfatide binding site. Since the biochemical properties and immunoreactivity of rP70 are indistinguishable from native P70 and SLIP1 (testicular sulfoglycolipid immobilized protein 1) rP70 can be employed to examine the role of hsp70-mediated sulfatide binding in fertilization. Abbreviations: PAGE, polyacrylamide gel electrophoresis; IPTG, isopropylthio-β-D-galactoside; X-gal, 5-bromo-4-chloro-3-indolyl-β-D-galactoside; km, kanamycin; amp, ampicillin; kDa, kilodaltons; kb, kilobases; BHI, brain heart infusion; OPD, O-phenylenediamine dichloride peroxidase substrate; RT, room temperature; h, hours
Similar content being viewed by others
References
Tanphaichitr N, Tayabali A, Gradil C, Juneja S, Leveille MC, Lingwood CA (1992) Mol Reprod Dev 32: 17-22.
Tanphaichitr N, Smith J, Mongkolsirikieart S, Gradil C, Lingwood CA (1993) Devel Biol 156: 164-75.
Kubushiro K, Mikami M, Nozawa S, Ishizuka R, Iwamori M, Nagai Y (1989) Arch Biochem Biophys 268: 129-36.
Lingwood CA, Quinn PA, Wilansky S, Nutikka A, Ruhnke H, Miller RB (1990) Biol Reprod 43: 694-97.
Lingwood CA, Schramayr S, Quinn P (1990) J Cell Physiol 142: 170-76.
Boulanger J, Faulds D, Eddy EM, Lingwood CA (1995) J Cell Physiol 165: 7-17.
Huesca M, Borgia S, Hoffman P, Lingwood CA (1996) Infect Immunity 64: 2643-48.
Hartmann E, Lingwood CA (in press) Infect Immunity.
Lingwood CA (1985) Can J Biochem Cell Biol 63: 1077-85.
Rosario MO, Perkins SL, O' Brien DA, Allen RL, Eddy EM (1992) Devel Biol 150: 1-11.
Lingwood CA, Murray RK, SchachterH(1980) J Immunol 124: 769-74.
Boulanger J, Huesca M, Arab S, Lingwood CA (1994) Anal Biochem 217: 1-6.
Boyd B, Lingwood CA (1989) Nephron 51: 207-10.
Archbald PJ, Fenn MD, Roy AB (1981) Carbohyd Res 93: 177-90.
Lingwood CA (1986) Biochem Cell Biol 64: 984-92.
Lingwood CA, Nutikka A (1991) J Cell Physiol 146: 258-63.
Lingwood CA, Schachter H (1981) J Cell Biol 89: 620-30.
Sambrook J, Fritsch E, Maniatis T (1989) In A Laboratory Manual (Nolan C) Cold Spring Harbor, NY: Cold Spring Harbor Laboratory Press.
Morgenstern JP, Land H (1990) Nucleic Acid Res 18: 3587-96.
Laemmeli UK (1980) Nature 227: 680-85.
Allen JW, Dix DJ, Collins BW, Merrick BA, He C, Selkirk JK, Poorman-Allen P, Dresser ME, Eddy EM (1996) Chromosoma 104: 414-21.
Maeda Y, Bigbee JW, Maeda R, Miyatani N, Kalb RG, Yu RK (1991) Exp Neurol 113: 221-25.
Miller D, Brough S, Al-Harbi O (1992) Hum Reprod 7: 637-45.
Zakeri ZF, Wolgemuth DJ, Hunt CR (1988) Mol Cell Biol 8: 2925-32.
Boyd B, Zhiuyan Z, Magnusson G, Lingwood CA (1994) Eur J Biochem 223: 873-78.
Kiarash A, Boyd B, Lingwood CA (1994) J Biol Chem 269: 11138-46.
Lingwood CA (1996) Glycoconj J 13: 495-503.
Flaherty KM, DeLuca-Flaherty C, McKay DB (1990) Nature 346: 623-28.
Chapell T, Konforti B, Schmid S, Rothman J (1985) J Biol Chem 262: 746-51.
Allen R, O' Brien D, Eddy E (1988) Mol Cell Biol 8: 828-32.
Wolgemuth D, Gruppi C (1992) Result Prob Cell Diff 17: 138-52.
Dix DJ, Allen JW Collins BW, Mori C, Nakamura N, Poorman-Allen P, Goulding EH, Eddy EM (1996) Proc Natl Acad Sci º SA 93: 3264-68.
Raab LS, Polakoski KL, Hancock LW, Hamilton DW (1995) Mol ReprodDev 40: 186-95.
Lingwood CA (1985) J Cell Sci 75: 1-10.
Lingwood CA (1985) Biochem J 231: 393-400.
Lingwood CA (1986) Ann Rev Biochem 55: 1151-91.
Craig E (1993) Science 260: 1902-3.
Michiels T, Wattiau P, Brasseur R, Ruysschaert J-M, Cornelis G (1990) Infect Immunity 58: 2840-49.
Phadnis S, Parlow M, Levy M, Ilver D, Caulkins C, Connors J, Dunn B (1996) Infect Immunol 64: 905-12.
Dunn BE, Cambell GP, Perez-Perez GI, Blaser MJ (1990) J Biol Chem 265: 9464-69.
Hightower L, Guidon P (1989) J Cell Physiol 138: 257-66.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Mamelak, D., Lingwood, C. Expression and sulfogalactolipid binding specificity of the recombinant testis-specific cognate heat shock protein 70. Glycoconj J 14, 715–722 (1997). https://doi.org/10.1023/A:1018569417218
Issue Date:
DOI: https://doi.org/10.1023/A:1018569417218