It is now the 5th OPEN Period for CACAO Fall 2017! It will end on Sunday November 19, 2017 at 11:59 pm CST
This is your chance to make annotations OR challenge other team's annotations. You may also DEFEND or suggest improvements to your own annotations IF they have been challenged. Please note, although we ENCOURAGE challenges, an excess of identical challenges that do not appear to be applicable to the annotation or well thought out will be considered spam and ignored.

Have any questions? Please email us at

Category:GO:0031386 ! protein tag

Jump to: navigation, search
DAG for GO:0031386id: GO:0031386

name: protein tag
namespace: molecular_function
def: "A molecular function exhibited by a protein that is covalently attached (AKA tagged or conjugated) to another protein where it acts as a marker, recognized by the cellular apparatus to target the tagged protein for some cellular process such as modification, sequestration, transport or degradation." [GOC:dos, GOC:go_curators, PMID:19028679, PMID:20054389, PMID:6305978]
comment: Use this term to annotate conjugated tags, not for conjugating enzymes. At the time of writing, all known gene products with this activity are ubiquitin-like, either based on overall sequence similarity or the presence of common motifs and structures.
subset: goslim_pir
synonym: "covalent modifier" RELATED [GOC:vw]
synonym: "protein tagging activity" RELATED []
synonym: "ubiquitin" RELATED []
synonym: "ubiquitin-like protein modifier" EXACT []
is_a: GO:0003674 ! molecular_function


Last version checked

23:02:2017 10:01.

Last updated

Gene Ontology Home
The contents of this box are automatically generated. You can help by adding information to the "Notes"

Usage Notes


See Help:References for how to manage references in GONUTS.