| 摘要 |
A +E,uns s+EE alicylic acid-+E,uns i+EE nduced +E,uns p+EE rotein (SIP) kinase is disclosed. The kinase has a molecular weight of about 48 kDa and is activated in response to salicylic acid, H2O2 and infection with tobacco mosaic virus. The activation and enzymatic properties of the purified protein have been characterized. The partial amino acid sequence and complete nucleotide sequence of a cDNA encoding the SIP kinase demonstrate that it is a unique member of the +E,uns m+EE itogen-+E,uns a+EE ctivated +E,uns p+EE rotein (MAP) kinase family. The novel SIP kinase may play a critical role in signal transduction for activation of plant defenses against microbial pathogens. |
