09100 Metabolism

 09120 Genetic Information Processing

 09130 Environmental Information Processing

   09131 Membrane transport

   09132 Signal transduction

     02020 Two-component system [PATH:hut02020]

     04010 MAPK signaling pathway

     04013 MAPK signaling pathway - fly

     04016 MAPK signaling pathway - plant

     04011 MAPK signaling pathway - yeast

     04012 ErbB signaling pathway

     04014 Ras signaling pathway

     04015 Rap1 signaling pathway

     04310 Wnt signaling pathway

     04330 Notch signaling pathway

     04340 Hedgehog signaling pathway

     04341 Hedgehog signaling pathway - fly

     04350 TGF-beta signaling pathway

     04390 Hippo signaling pathway

     04391 Hippo signaling pathway - fly

     04392 Hippo signaling pathway - multiple species

     04370 VEGF signaling pathway

     04371 Apelin signaling pathway

     04630 JAK-STAT signaling pathway

     04064 NF-kappa B signaling pathway

     04668 TNF signaling pathway

     04066 HIF-1 signaling pathway

     04068 FoxO signaling pathway

     04020 Calcium signaling pathway

     04070 Phosphatidylinositol signaling system

     04072 Phospholipase D signaling pathway

     04071 Sphingolipid signaling pathway

     04024 cAMP signaling pathway

     04022 cGMP-PKG signaling pathway

     04151 PI3K-Akt signaling pathway

     04152 AMPK signaling pathway

     04150 mTOR signaling pathway

     04075 Plant hormone signal transduction

   09133 Signaling molecules and interaction

 09140 Cellular Processes

 09150 Organismal Systems

 09160 Human Diseases

 09180 Brite Hierarchies

 09190 Not Included in Pathway or Brite