EOG8ZPH8F GO:0005089 23/128 Rho guanyl-nucleotide exchange factor activity molecular_function "Stimulates the exchange of guanyl nucleotides associated with a GTPase of the Rho family. Under normal cellular physiological conditions, the concentration of GTP is higher than that of GDP, favoring the replacement of GDP by GTP in association with the GTPase." [GOC:mah] EOG8ZPH8F GO:0035556 2/128 intracellular signal transduction biological_process "The process in which a signal is passed on to downstream components within the cell, which become activated themselves to further propagate the signal and finally trigger a change in the function or state of the cell." [GOC:bf, GOC:jl, GOC:signaling, ISBN:3527303782] EOG8ZPH8F GO:0004833 1/128 tryptophan 2,3-dioxygenase activity molecular_function "Catalysis of the reaction: L-tryptophan + O2 = N-formyl-L-kynurenine." [EC:1.13.11.11] EOG8ZPH8F GO:0020037 1/128 heme binding molecular_function "Interacting selectively and non-covalently with heme, any compound of iron complexed in a porphyrin (tetrapyrrole) ring." [CHEBI:30413, GOC:ai] EOG8ZPH8F GO:0019441 1/128 tryptophan catabolic process to kynurenine biological_process "The chemical reactions and pathways resulting in the breakdown of tryptophan into other compounds, including kynurenine." [GOC:go_curators]