library(GO.db)
class(GO.db)
#[1] "GODb"
#attr(,"package")
#[1] "AnnotationDbi"
methods(class = "GODb")
[1] $ $<- annotatedDataFrameFrom assayData assayData<- coerce
[7] coerce<- columns combine contents dbconn dbfile
[13] dbInfo dbmeta dbschema ExpressionSet featureNames featureNames<-
[19] initialize isNA keys keytypes mapIds mappedkeys
[25] metadata nhit revmap sample sampleNames sampleNames<-
[31] saveDb select show species storageMode storageMode<-
[37] taxonomyId updateObject
see '?methods' for accessing help and source code
mapIds(GO.db,"GO:1904813","TERM","GOID")
'select()' returned 1:1 mapping between keys and columns
GO:1904813
"ficolin-1-rich granule lumen"
使用GO.db包将GO identifier转化为GOterm
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