Article
Redox-regulated rotational coupling of receptor protein-tyrosine phosphatase alpha dimers.
The Journal of biological chemistry - 18 Apr 2003
van der Wijk Thea, Blanchetot Christophe, Overvoorde John, den Hertog Jeroen
Abstract excerpt
Receptor protein-tyrosine phosphatase alpha (RPTP alpha) constitutively forms dimers in the membrane, and activity studies with forced dimer mutants of RPTP alpha revealed that rotational coupling of the dimer defines its activity. The hemagglutinin (HA) tag of wild type RPTP alpha and of constitutively dimeric, active RPTP alpha-F135C with a disulfide bond in the extracellular domain was not accessible for...
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