各种氨基酸的缩写

tyr,gly,phe,met,leu,arg,pro,lys,gln,glu,asn,ileasp,val,his,ser,ala,thrcys,trp分别是哪20种氨基酸？... tyr,gly,phe,met,leu,arg,pro,lys,gln,glu,asn,ileasp,val,his,ser,ala,thr cys,trp分别是哪20种氨基酸？