R - Remove commas from values in a column and place separated values into new rows -

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i have column of gene symbols have retrieved directly database, , of rows contain 2 or more symbols comma separated (see example below).

slc6a13 atp5j2-ptcd1,bud31,ptcd1 acot7 bud31,pdap1 ttc26

i remove commas, , place separated symbols new rows so:

slc6a13 atp5j2-ptcd1 bud31 ptcd1 acot7 bud3 pdap1 ttc26

i haven't been able find straight forward way in r, have suggestions?

another option use readlines , strsplit :

unlist(strsplit(readlines(textconnection(txt)),','))  "slc6a13"      "atp5j2-ptcd1" "bud31"        "ptcd1"        "acot7"          "bud31"        "pdap1"        "ttc26"

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