Site‐specific phosphorylation of the purified receptor for calcium‐channel blockers by cAMP‐ and cGMP‐dependent protein kinases, protein kinase C, calmodulin‐dependent protein kinase II and casein kinase II

FEBS Journal - Tập 178 Số 2 - Trang 535-542 - 1988
Holger Jahn1, Wolfgang Nastainczyk1, Axel Röhrkasten1, Toni Schneider1, Franz Hofmann1
1Institut für Physiologische Chemie, Medizinische Fakultät der Universität des Saarlandes, Homburg/Saar

Tóm tắt

Five protein kinases were used to study the phosphorylation pattern of the purified skeletal muscle receptor for calcium‐channel blockers (CaCB). cAMP kinase, cGMP kinase, protein kinase C, calmodulin kinase II and casein kinase II phosphorylated the 165‐kDa and the 55‐kDa proteins of the purified CaCB receptor. The 130/28‐kDa and the 32‐kDa protein of the receptor are not phosphorylated by these protein kinases. Among these protein kinases only cAMP kinase phosphorylated the 165‐kDa subunit with 2–3‐fold higher initial rate than the 55‐kDa subunit. Casein kinase II phosphorylated the 165‐kDa and the 55‐kDa protein of the receptor with comparable rates. cGMP kinase, protein kinase C and calmodulin kinase II phosphorylated preferentially the 55‐kDa protein. The 55‐kDa protein is phosphorylated 50 times faster by cGMP kinase and protein kinase C than by calmodulin kinase II or casein kinase II and about 10 times faster by these enzymes than by cAMP kinase. Two‐dimensional peptide maps of the 165‐kDa subunit yielded a total of 11 phosphopeptides. Four or five peptides are phosphorylated specifically by cAMP kinase, cGMP kinase, casein kinase II and protein kinase C, whereas the other peptides are modified by several kinases. The same kinases phosphorylate 11 peptides in the 55‐kDa subunit. Again, some of these peptides are modified specifically by each kinase. These results suggest that the 165‐kDa and the 55‐kDa subunit contain specific phosphorylation sites for cAMP kinase, cGMP kinase, casein kinase II and protein kinase C. Phosphorylation of these sites may be relevant for the in vivo function of the CaCB receptor.

Từ khóa


Tài liệu tham khảo

10.1016/0165-6147(87)90103-9

10.1038/304462a0

Trautwein W., 1986, Fortschr. Zool, 33, 163

10.1016/S0022-2828(86)80941-5

10.1113/jphysiol.1986.sp016206

10.1038/327620a0

Schmid A., 1985, J. Biol. Chem., 260, 13041, 10.1016/S0021-9258(17)38835-X

10.1073/pnas.84.8.2518

10.1038/323812a0

10.1038/325714a0

10.1016/S0006-3495(87)83414-8

Navarro J., 1987, J. Biol. Chem., 262, 4649, 10.1016/S0021-9258(18)61243-8

10.1038/325809a0

10.1021/bi00305a001

10.1111/j.1432-1033.1986.tb10145.x

10.1111/j.1432-1033.1987.tb13311.x

10.1016/S0021-9258(18)45353-7

10.1016/S0021-9258(18)47943-4

10.1073/pnas.84.15.5478

10.1016/S0021-9258(17)36105-7

10.1016/0165-6147(87)90082-4

10.1111/j.1432-1033.1986.tb10484.x

10.1016/0014-5793(87)81354-6

10.1073/pnas.82.8.2528

10.1038/323066a0

10.1111/j.1432-1033.1987.tb13590.x

10.1073/pnas.83.11.3733

Röhrkasten A. Meyer H. E. Nastainczyk W. Sieber M.&Hofmann F.(1988)J. Biol. Chem. in the press.

10.1038/328313a0

Cavalié A., 1987, J. Physiol. (Lond.), 390, 82p

10.1016/S0006-3495(87)83283-6

10.1021/bi00396a046

10.1016/S0006-3495(88)83115-1

10.1073/pnas.85.12.4290

10.1016/S0021-9258(18)47568-0

Johnson R. A., 1979, Adv. Cyclic Nucleotide Res., 10, 135

10.1016/S0021-9258(19)86069-6

10.1111/j.1432-1033.1983.tb07191.x

10.1111/j.1432-1033.1987.tb13395.x

10.1016/S0021-9258(18)32934-X

Schworer C. M., 1985, J. Biol. Chem., 260, 13018, 10.1016/S0021-9258(17)38831-2

Sharma R. W., 1979, Adv. Cyclic Nucleotide Res., 10, 187

10.1016/0003-2697(76)90527-3

10.1016/0003-2697(85)90442-7

10.1038/227680a0

10.1016/S0021-9258(17)39987-8

10.1111/j.1432-1033.1988.tb14222.x

10.1098/rspb.1988.0040

10.1146/annurev.bi.56.070187.003031

Thông tin
Thông tin xuất bản

FEBS Journal

Tập 178 Số 2

535-542

Thông tin tác giả