文章基本信息

标题：mda-5: An interferon-inducible putative RNA helicase with double-stranded RNA-dependent ATPase activity and melanoma growth-suppressive properties
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作者：Dong-chul Kang ; Rahul V. Gopalkrishnan ; Qingping Wu 等
期刊名称：Proceedings of the National Academy of Sciences
印刷版ISSN：0027-8424
电子版ISSN：1091-6490
出版年度：2002
卷号：99
期号：2
页码：637-642
DOI：10.1073/pnas.022637199
语种：English
出版社：The National Academy of Sciences of the United States of America
摘要：Human melanoma cells can be reprogrammed to terminally differentiate and irreversibly lose proliferative capacity by appropriate pharmacological manipulation. Subtraction hybridization identified melanoma differentiation-associated gene-5 (mda-5) as a gene induced during differentiation, cancer reversion, and programmed cell death (apoptosis). This gene contains both a caspase recruitment domain and putative DExH group RNA helicase domains. Atypical helicase motifs of MDA-5 deviate from consensus sequences but are well conserved in a potentially new group of cloned and hypothetical proteins. mda-5 is an early response gene inducible by IFN and tumor necrosis factor-, responding predominantly to IFN-{beta}. Protein kinase C activation by mezerein further augments mda-5 expression induced by IFN-{beta}. Expression of mda-5 is controlled transcriptionally by IFN-{beta