Complex protein binding within the mouse immunoglobulin heavy-chain enhancer.
AUTOR(ES)
Peterson, C L
RESUMO
We have begun to purify and characterize several proteins which bind to the mouse immunoglobulin heavy-chain enhancer to understand the molecular interactions important for enhancer activity. Three proteins which bind to different sites on the immunoglobulin heavy-chain enhancer have been chromatographically separated and partially purified. One protein binds a site which has not been reported previously and does not bind to other reported protein-binding sites on the immunoglobulin heavy-chain enhancer. Binding-site boundaries for the three partially purified proteins have been precisely mapped by methylation interference, DNase I footprinting, and orthophenanthroline/copper chemical nuclease footprinting. We have also characterized these three proteins with respect to dissociation rate constants.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=368100Documentos Relacionados
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