| molecular function |
| | GO:0044549 | | GTP cyclohydrolase binding | | Interacting selectively and non-covalently with a GTP cyclohydrolase. |
| | GO:0030742 | | GTP-dependent protein binding | | Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules) using energy from the hydrolysis of GTP. |
| | GO:0016597 | | amino acid binding | | Interacting selectively and non-covalently with an amino acid, organic acids containing one or more amino substituents. |
| | GO:0019899 | | enzyme binding | | Interacting selectively and non-covalently with any enzyme. |
| | GO:0004857 | | enzyme inhibitor activity | | Binds to and stops, prevents or reduces the activity of an enzyme. |
| | GO:0005515 | | protein binding | | Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules). |
| biological process |
| | GO:0043105 | | negative regulation of GTP cyclohydrolase I activity | | Any process that stops or reduces the activity of the enzyme GTP cyclohydrolase I. |
| | GO:0009890 | | negative regulation of biosynthetic process | | Any process that stops, prevents, or reduces the rate of the chemical reactions and pathways resulting in the formation of substances. |
| | GO:0006461 | | protein complex assembly | | The aggregation, arrangement and bonding together of a set of components to form a protein complex. |
| | GO:0051291 | | protein heterooligomerization | | The process of creating protein oligomers, compounds composed of a small number, usually between three and ten, of component monomers that are not all identical. Oligomers may be formed by the polymerization of a number of monomers or the depolymerization of a large protein polymer. |
| | GO:0045428 | | regulation of nitric oxide biosynthetic process | | Any process that modulates the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of nitric oxide. |
| cellular component |
| | GO:0005737 | | cytoplasm | | All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures. |
| | GO:0005829 | | cytosol | | The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes. |
| | GO:0030425 | | dendrite | | A neuron projection that has a short, tapering, often branched, morphology, receives and integrates signals from other neurons or from sensory stimuli, and conducts a nerve impulse towards the axon or the cell body. In most neurons, the impulse is conveyed from dendrites to axon via the cell body, but in some types of unipolar neuron, the impulse does not travel via the cell body. |
| | GO:0042470 | | melanosome | | A tissue-specific, membrane-bounded cytoplasmic organelle within which melanin pigments are synthesized and stored. Melanosomes are synthesized in melanocyte cells. |
| | GO:0016020 | | membrane | | A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it. |
| | GO:0031965 | | nuclear membrane | | Either of the lipid bilayers that surround the nucleus and form the nuclear envelope; excludes the intermembrane space. |
| | GO:0005634 | | nucleus | | A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent. |
| | GO:0043234 | | protein complex | | A stable macromolecular complex composed (only) of two or more polypeptide subunits along with any covalently attached molecules (such as lipid anchors or oligosaccharide) or non-protein prosthetic groups (such as nucleotides or metal ions). Prosthetic group in this context refers to a tightly bound cofactor. The component polypeptide subunits may be identical. |