Isolation and characterization of a calmodulin-like protein from Halobacterium salinarium.

AUTOR(ES)

Rothärmel, T

RESUMO

The first evidence for a calmodulin-like protein in an archaeon, Halobacterium salinarium, is reported here. The calmodulin-like protein, with a molecular mass of 24 kDa and an estimated pI of 4.8, stimulated cyclic nucleotide phosphodiesterase in a calcium-dependent manner. This stimulation could be suppressed by calmodulin inhibitors. The Ca(2+)-binding ability was verified by 45Ca autoradiography.

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