EOG8XWJCT GO:0016021 29/112 integral component of membrane cellular_component "The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane." [GOC:dos, GOC:go_curators] EOG8XWJCT GO:0008519 29/112 ammonium transmembrane transporter activity molecular_function "Enables the transfer of ammonium from one side of a membrane to the other. Ammonium is the cation NH4+ which is formed from N2 by root-nodule bacteria in leguminous plants and is an excretory product in ammonotelic animals." [GOC:go_curators, ISBN:0198506732]