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Table 1 Four categories of evidence codes used in GO and their meanings

From: NoGOA: predicting noisy GO annotations using evidences and sparse representation

Experimental Computational Author Curatorial
EXP: inferred from experiment ISS: inferred from sequence or structural similarity TAS: traceable author statement IC: inferred by curator
IDA: inferred from direct assay ISO: inferred from sequence orthology NAS: non-traceable author statement ND: no biological data available
IPI: inferred from physical interaction ISA: inferred from sequence alignment   
IMP: inferred from mutant phenotype ISM: inferred from sequence model   
IGI: inferred from genetic interaction IGC: inferred from genomic context   
IEP: inferred from expression pattern 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   
  IEA: inferred from electronic annotation