Nanosensor Detection of an Immunoregulatory Tryptophan Influx/Kynurenine Efflux Cycle

• Thijs Kaper,

  Current address: Genencor International, Palo Alto, California, United States of America

  Affiliation Department of Plant Biology, Carnegie Institution, Stanford, California, United States of America

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• Loren L Looger,

  Current address: Janelia Farm, Howard Hughes Medical Institute, Ashburn, Virginia, United States of America

  Affiliation Department of Plant Biology, Carnegie Institution, Stanford, California, United States of America

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• Hitomi Takanaga,

  Affiliation Department of Plant Biology, Carnegie Institution, Stanford, California, United States of America

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• Michael Platten,

  Affiliations Department of Neuro-oncology, University Hospital of Heidelberg, INF 400, Heidelberg, Germany , German Cancer Research Center, INF 280, Heidelberg, Germany

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• Lawrence Steinman,

  Affiliation Department of Neurology and Neurological Sciences, Stanford University, Stanford, California, United States of America

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• Wolf B Frommer

  *To whom correspondence should be addressed. E-mail: wfrommer@stanford.edu

  Affiliation Department of Plant Biology, Carnegie Institution, Stanford, California, United States of America

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