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Excellgen/T4 RNA Ligase 2 Truncated/EG-1053/20,000 Units

价格
¥5000.00
货号:EG-1053-20,000Units
浏览量:127
品牌:Excellgen
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商品描述
DescriptionT4RNALigase2truncatedcatalyzesphosphodiesterbondformationbetweenapre-adenylated5′phosphate(DNAorRNA)andthe3′hydroxylofRNA.Thetruncatedenzymecontainingthefirst249aminoacidsisunabletoadenylatethe5´endofthesubstrate,thusitcannotligatethephosphorylated5´endofRNAorDNAtothe3´endofRNA.Suchapropertyisusefulforcertainapplicationssuchaslinkerligationswithpre-adenylated5′DNAto3′hydroxylRNA,suchasmicroRNAs.Thistruncatedenzymesignificantlyreducesunwantedbackgroundligationasitcanonlyuseadenylatedprimers.
Applications
  • Ligateapre-adenylatedDNAorRNAsequencetagtoanyRNA3´-end
  • JoinasinglestrandedadenylatedprimertosmallRNAsforCDNAlibrarycreation
  • JoinasinglestrandedadenylatedprimertoRNAforstrand-specificcDNAlibraryconstruction
SourcePurifiedfromarecombinantE.colistraincarryingtheT4phageRNALigase2Rnl2(gp24.1)(1-249)gene
Components
  • T4RNALigase2truncated:200,000units/mlinstoragebuffer:10mMTris-HCl,100mMNaCl,0.1mMDTT,0.1mMEDTA,50%glycerol,pH7.5@25°C
  • 10XT4RNALigase2truncatedBuffer:500mMTris-HCl,100mMMgCl2,50mMDTT,pH7.6@25°C
UnitDefinitionOneunitisdefinedastheamountofenzymerequiredtoligate50%of0.4µgofanequimolarmixofasingle-stranded5′FAM-labeled17-merRNAtothe5′pre-adenylatedendofa18-merDNAwhenboth17-mersareannealedtoacomplementary35-merDNAstrandin20μL1Xreactionbufferfollowinga30minuteincubationat37°C.
QualityControl
  • Theabsenceofendo-,exodeoxyribonucleases,phosphatases,andribonucleasesconfirmedbyappropriatequalitytests.
  • Functionallytestedforthecapacitytojoincohesive-andblunt-endDNAfragments.
Storage-20°C.
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