牛津英语词典-生物化学与分子生物学

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1、245fragment-crystallizabiefreeze-etchingspectrometertoformanionoflowermolecularmassandaradical.fragment-crystallizabieseeFcfragment.fragmention(inmassspectrometry)anyionproducedbythelossofoneormorepiecesfromaparentmolecularion(orlargerfragmention).fragmentography

2、secmolecularfragmentography.fragminaCa2+-sensitiveprotein,ofM,43000andisolatedfromPhysarumpolycephalum,thatregulatesthelengthofactinfilamentsinvitro.frameshortnameforreadingframe.frameshifting(inribosomalfunction)seeprogrammedribosomalframeshifting.frameshiftmuta

3、genanymutagenthatiscapableofcausingframeshiftmutations.frameshiftmutationorphaseshiftmutationanymutationin-volvingtheadditionordeletionofnucleotideresiduesinaDNAmoleculethatresultsinout-of-phasetranslation,atpo-free(inchemistry)notchemicallycombined(withanothersu

4、b-sitionsbeyondthesiteofmutation,ofthemessengerRNAstance);notphysicallybound(toanothersubstance).formedfromit.Sincethegeneticcodeisreadasunpunctuatedfreediffusiondiffusioninagasphaseoracrossaboundarybasetriplets,additionsordeletionsinthemessagethatarenotbetweentw

5、osolutions(orbetweenasolutionandpuresol-multiplesofthreebasesresultinashiftinthereadingframe.vent),asdistinctfromdiffusionacrossamembraneorsomeframeshiftsuppressoranyofaclassofexternalsuppressorotherporousbarrier.mutationsthatspecificallysuppressaframeshiftmutati

6、onbyfree-drainingcoilamodelforpolymermoleculesinsolutionchanging(correcting)thephaseoftranslation.Frameshiftthatarenotwellapproximatedbyasolidparticle.Inthissuppressorsaregeneticalterationsoutsidethemutatedmodelthepolymerisconsideredasastringofbeadsthroughcistron

7、.SomegiverisetoalteredtRNAmolecules,frameshiftwhichthesolventstreamsduringviscousflow.suppressortRNAs,thatrecognizeabasequadrupletinsteadoffreeelectrophoresisanalternativenameformovingboundaryabasetriplet.electrophoresis(def.1).Franck,James(1882-1964)German-bornU

8、SphysicistnotablefreeenergyanalternativenameforGibbsenergy.forhisworkonquantumtheory(withG.Hertz),onphoto-freeenergychangeanalternativenameforGibbsfreeenergych