你看第5个综述里有他的用处Thenameofgp60subtypesstartswiththesubtypefamilydesignation 　　(Ia,Ib,Id,Ie,If,etc.forC.hominis,andIIa,IIb,IIc,IId,etc. 　　forC.parvum)followedbythenumberofTCA(representedby 　　theletterA),TCG(representedbytheletterG),orTCT(represented 　　bytheletterT)repeats(Sulaimanetal.,2005).Thus,thename 　　IbA10G2indicatesthatparasitebelongstoC.hominissubtypefamily 　　Ibandhas10copiesoftheTCArepeatandtwocopiesoftheTCG 　　repeatinthetrinucleotiderepeatregionofthegp60gene.IntheC. 　　parvumIIasubtypefamily,afewsubtypesalsohavetwocopiesof 　　theACATCAsequencerightafterthetrinucleotiderepeats,which 　　arerepresentedby‘‘R2”(R1formostsubtypes).