The multiple subunits of discoidin I are encoded by different genes
[摘要] ThetranslationproductencodedbythemRNAcomplementarytoapreviouslydescribedplasmidtermedpDd8.1.2.(Williamsetal.,1979)comigratesonSDSgelswithdiscoidinI,adevelopmentallyregulatedlectinofDictyosteliumdiscoideum.Thistranslationproductalsoreactsspecificallywithanantiserumraisedagainstpurifieddiscoidin.Two-dimensionalgelanalysisrevealedthatdiscoidinIconsistsoftwopolypeptideswhichwedesignateasdiscoidinIaanddiscoidinIb.DiscoidinIbsometimesmigratesasadiffusespotandsometimesastwobarelyresolvedspots.Itispossible,therefore,thatdiscoidinIbisitselfamixtureoftwopolypeptideswhichdisplayverysimilarelectrophoreticbehavior.WefindthatpDd8.1.2.DNAhybridizespreferentiallywiththemRNAencodingdiscoidinIa,suggestingthatdiscoidinIaanddiscoidinIbaretheproductsofdifferentgenes.
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[效力级别] [学科分类] 生物科学(综合)
[关键词] [时效性]