Gene Ontology

Gene Ontology (GO) provides a way to describe the molecular function, biological process and cellular component of a gene or it's protein product in a species independent way. There are a limited number of terms for which the relations between terms are known to facilitate computational analysis.

GO terms can be derived experimentally or can be inferred through computational studies, the evidence tag provides details how a term was obtained.

Official documentation
Tag Description
Experimental Evidence Codes
EXP Inferred from Experiment
IDA Inferred from Direct Assay
IPI Inferred from Physical Interaction
IMP Inferred from Mutant Phenotype
IGI Inferred from Genetic Interaction
IEP Inferred from Expression Pattern
Computational Analysis evidence codes
ISS Inferred from Sequence Similarity
ISO Inferred from Sequence Orthology
ISA Inferred from Sequence Alignment
ISM Inferred from Sequence Model
IGC Inferred from Genomic Context
IBA Inferred from Biological aspect of Ancestor
IBD Inferred from Biological aspect of Descendant
IKR Inferred from Key Residues
IRD Inferred from Rapid Divergence
RCA Inferred from Reviewed Computational Analysis
Other types
TAS Traceable Author Statement
NAS Non-traceable Author Statement
IC Inferred by Curator
ND No biological data available