MUTATION ON WD DIPEPTIDE MOTIFS OF THE p48 SUBUNIT OF CHROMATIN ASSEMBLY FACTOR-1 CAUSING VIABILITY AND GROWTH OF DT40 CHICKEN B CELL LINE

https://doi.org/10.22146/ijc.21468

Ahyar Ahmad(1*), Harningsih Karim(2)

(1) Biochemistry and Biotechnology Lab., Department of Chemistry, Faculty of Natural Sciences, Hasanuddin University, Makassar 90245
(2) Department of Pharmacy, School of Pharmacy YAMASI, Jl. Mapala 2 Blok D5 No.10 Makassar 90222
(*) Corresponding Author

Abstract


Chromatin assembly factor-1 (CAF-1), a protein complex consisting of three subunits, p150, p60, and p48, is highly conserved from yeast to humans and facilitated nucleosome assembly of newly replicated DNA. The p48 subunit, CAF-1p48 (p48), with seven WD (Trp-Asp) repeat motifs, is a member of the WD protein family. The immunoprecipitation experiment revealed that ß-propeller structure of p48 was less stringent for it's binding to HDAC-1, but more stringent for its binding to both histones H4 and CAF-1p60 but not to ASF-1, indicating that the proper ß-propeller structure of p48 is essential for the binding to these two proteins histone H4 and CAF-1p60. Complementation experiments, involving missense and truncated mutants of FLAG-tagged p48, revealed that mutations of every of seven WD dipeptide motifs, like both the N-terminal and C-terminal truncated mutations, could not rescue for the tet-induced lethality. These results indicate not only that p48 is essential for the viability of vertebrate cells, although the yeast p48 homolog is nonessential, but also that all the seven WD dipeptide motifs are necessary for the maintenance of the proper structure of p48 that is fundamentally important for cell viability.


Keywords


Chromatin assembly factor-1; complementation experiments; viability

Full Text:

Full Text PDF


References

[1] Wolffe, A.P., 1996, Science, 272, 371-372.

[2] Pazin, M.J., and Kadonaga, J.T., 1997, Cell, 89, 325-328.

[3] Takami, Y., Ono, T., Fukagawa, T., Shibaraha, K.I., and Nakayama, T., 2007, Mol. Biol. Cell, 18, 129-141.

[4] Stillman, B., 1986, Cell, 45, 555-565.

[5] Smith, S., and Stillman, B., 1989, Cell, 58, 15-25.

[6] Kaufman, P.D., Kobayashi, R., Kessler, N., and Stillman, B., 1995, Cell, 81, 1105-1114.

[7] Smith, S., and Stillman, B., 1991, EMBO J., 10, 971-980.

[8] Krude, T., 1999, Eur. J. Biochem., 263, 1-5.

[9] Verreault, A., Kaufman, P.D., Kobayashi, R., and Stillman, B., 1996, Cell, 87, 95-104.

[10] Ito, T., Bulger, M., Kobayashi, R., and Kadonaga, J.T., 1996, Mol. Cell. Biol., 16, 3112-3124.

[11] Qian, Y.W., Wang, Y.C., Hollingsworth, R.E., Jones, D., Ling, N., and Lee, E.Y., 1993, Nature, 364, 648-652.

[12] Marheineke, K. and Krude, T., 1998, J. Biol. Chem., 273, 15279-15286.

[13] Taunton, J., Hassig, C.A., and Schreiber, S.L., 1996, Science, 272, 408-411.

[14] Tyler, J.K., Bulger, M., Kamakaka, R.T., Kobayashi, R., and Kadonaga, J.T., 1996, Mol. Cell. Biol., 16, 6149-6159.

[15] Hassig, C.A., Fleischer, T.C., Billin, A.N., Schreiber, S.L., and Ayer, D.E., 1997, Cell, 89, 341-347.

[16] Ahmad, A., Takami, Y., and Nakayama, T., 1999, J. Biol. Chem., 274, 16646-16653.

[17] Takami, Y., Kikuchi, H., and Nakayama, T., 1999, J. Biol. Chem., 274, 23977-23990.

[18] Sambrook, J., Fritsch, E.F., and Maniatis, T., 1989, Molecular cloning: a laboratory manual, 2nd ed., Cold Spring Harbor, New York: Cold Spring Harbor Laboratory Press.

[19] Wang, J., Takagaki, Y., and Manley, J.L., 1996, Genes Dev., 10, 2588-2599.

[20] Vermaak, D., Wade, P.A., Jones, P.L., Shi, Y.B., and Wolffe, A.P., 1999, Mol. Cell. Biol., 19, 5847-5860.

[21] Sharp, J.A., Fouts, E.T., Krawitz, D.C., and Kaufman, P.D., 2001, Curr Biol., 11, 463-473.

[22] Mello, J.A., Sillje, H.H., Roche, D.M., Kirschner, D.B., Nigg, E.A., and Almouzni, G., 2002, EMBO Rep., 3, 329-334.

[23] Munakata, T., Adachi, N., Yokoyama, N., Kuzuhara, T., and Horikoshi, M., 2000, Genes Cells, 5, 221-233.

[24] Eitoku, M., Sato, L., Senda, T., and Horikoshi, M., 2008, Cell Mol. Life Sci., 65, 3, 414-444.

[25] Ahmad, A., Kikuchi, H., Takami, Y., and Nakayama, T., 2005, J. Biol. Chem., 280, 32090-32100.

[26] Ahmad, A., 2008, Indo. J. Chem., 8, 3, 454-458.

[27] Sanematsu, F., Takami, Y., Barman, H.K., Ono, T., Fukagawa, T., Shibaraha, K.I., and Nakayama, T. 2006, J. Biol. Chem., 281, 13817-13827.

[28] Kim, H.J., Seol, J.H., and Cho, E.J. 2009, B.M.B Rep., 42, 4, 227-231.



DOI: https://doi.org/10.22146/ijc.21468

Article Metrics

Abstract views : 1250 | views : 1053


Copyright (c) 2010 Indonesian Journal of Chemistry

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

 

Indonesian Journal of Chemistry (ISSN 1411-9420 /e-ISSN 2460-1578) - Chemistry Department, Universitas Gadjah Mada, Indonesia.

Web Analytics View The Statistics of Indones. J. Chem.