Provisional Cell Ontology

Last uploaded: September 9, 2025
Id http://purl.obolibrary.org/obo/PR_000000001
http://purl.obolibrary.org/obo/PR_000000001
Preferred Name

protein

Definitions
Note that the definition allows for experimentally-manipulated genes, and allows for artifically-produced derivatives that mimic those found naturally. Note also that the definition excludes protein complexes, which some also consider a protein. Those who wish to refer to a class representing both senses of the word are directed to PR:000064867 ("protein-containing molecular entity"). Proteins (in the sense defined here) that descended from a common ancestor can be classified into families and superfamilies composed of products of evolutionarily-related genes. The domain architecture of a protein is described by the order of its constituent domains. Proteins with the same domains in the same order are defined as homeomorphic [PRO:WCB). An amino acid chain that is canonically produced de novo by ribosome-mediated translation of a genetically-encoded mRNA, and any derivatives thereof.
Synonyms
natural protein
native protein
Type http://www.w3.org/2002/07/owl#Class
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