- oga
O-GlcNAc selective N-Acetyl-beta-D-glucosaminidase (O-GlcNAcase)
- pfut
protein O-fucosyltransferase
- oac
O-ACyltransferase homolog
- comt
Catechol-O-MethylTransferase family
- homt
Hydroxyindole-O-MethylTransferase homolog
- ogt
O-linked GlcNAc Transferase
- sro
Serpentine Receptor, class O (opsin)
- goa
G protein,O, Alpha subunit
- mboa
Membrane Bound O-Acyl transferase, MBOAT
- pigo
PhosphatidylInositol Glycan anchor biosynthesis class O