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Novus/Recombinant Human TGF-beta 1 (Human Cell-expressed) Protein/25 ug/7754-BH-025
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4000-520-616
RecombinantHumanTGF-beta1(HumanCell-expressed)ProteinSummary
| DetailsofFunctionality | MeasuredbyitsABIlitytoinhibittheIL-4-dependentproliferationofHT‑2mouseT cells.Tsang, M.et al.(1995)Cytokine7:389.TheED50forthiseffectis0.04-0.2ng/mL. |
| Source | Humanembryonickidneycell,HEK293-derivedhumanTGF-beta1proteinAla279-Ser390 |
| Accession# | P01137 |
| N-terminalSequence | Ala279 |
| Structure/Form | Disulfide-linkedhomodimer |
| Protein/PeptideType | RecombinantProteins |
| Gene | TGFB1 |
| Purity | >95%,bySDS-PAGEunderreducingconditionsandvisualizedbysilverstain. |
| EndotoxinNote | <0.01 eu="" per="" 1="" μg="" of="" the="" protein="" by="" the="" lal=""> |
Applications/Dilutions
| TheoreticalMW | 12.8kDa(monomer).Disclaimernote:Theobservedmolecularweightoftheproteinmayvaryfromthelistedpredictedmolecularweightduetoposttranslationalmodifications,posttranslationcleavages,relativecharges,andotherexperimentalfactors. | |
| SDS-PAGE | 11kDa,reducingconditions | |
| Publications |
|
Packaging,Storage&Formulations
| Storage | Useamanualdefrostfreezerandavoidrepeatedfreeze-thawcycles.
|
| Buffer | Lyophilizedfroma0.2μmfilteredsolutioninAcetonitrileandTFAwithBSAasacarrierprotein.*1mgpacksize(01M)issuppliedasa0.2µmfilteredsolutioninAcetonitrileandTFAwithBSAasacarrierprotein. |
| Purity | >95%,bySDS-PAGEunderreducingconditionsandvisualizedbysilverstain. |
| ReconstitutionInstructions | Reconstituteat100μg/mLinsterile4mMHClcontainingatleast0.1%humanorbovineserumalbumin. |
Notes
ThisproductisproducedbyandshipsfromR&DSystems,Inc.,aBio-Technebrand.
AlternateNamesforRecombinantHumanTGF-beta1(HumanCell-expressed)Protein
- CEDLAP
- DPD1
- latency-associatedpeptide
- TGFbeta1
- TGFB
- TGFB1
- TGF-beta1protein
- TGFbeta1
- TGF-beta1
- TGFbeta
- TGF-beta-1
- transforminggrowthfactorbeta-1
- transforminggrowthfactor,beta1
Background
TGF‑beta1(transforminggrowthfactorbeta1)isoneofthreecloselyrelatedmammalianmembersofthelargeTGF‑betasuperfamilythatshareacharacteristiccystineknotstructure(1‑7).TGF‑beta1,‑2and‑3arehighlypleiotropiccytokinesthatareproposedtoactascellularswitchesthatregulateprocessessuchasimmunefunction,proliferationandepithelial‑mesenchymaltransition(1‑4).EachTGF‑betaisoformhassomenon‑redundantfunctions;forTGF‑beta1,micewithtargeteddeletionshowdefectsinhematopoiesisandendothelialdifferentiation,anddieofoverwhelminginflammation(2).HumanTGF‑beta1CDNAencodesa390aminoacid(aa)precursorthatcontainsa29aasignalpeptideanda361aaproprotein(8).Afurin-likeconvertaseprocessestheproproteintogenerateanN‑terminal249aalatency‑associatedpeptide(LAP)andaC‑terminal112aamatureTGF‑beta1(8,9).Disulfide-linkedhomodimersofLAPandTGF‑beta1remainnon‑covalentlyassociatedaftersecretion,formingthesmalllatentTGF‑beta1complex(8‑10).CovalentlinkageofLAPtooneofthreelatentTGF‑betabindingproteins(LTBPs)createsalargelatentcomplexthatmayinteractwiththeextracellularmatrix(9,10).TGF‑betaisactivatedfromlatencybypathwaysthatincludeactionsoftheproteaseplasmin,matrixmetalloproteases,thrombospondin1andasubsetofintegrins(10).MaturehumanTGF‑beta1shares100%aaidentitywithpig,dogandcowTGF‑beta1,and99%aaidentitywithmouse,ratandhorseTGF‑beta1.Itdemonstratescross‑speciesactivity(1).TGF‑beta1signalingbeginswithhigh‑affinitybindingtoatypeIIser/thrkinasereceptortermedTGF‑betaRII.Thisreceptorthenphosphorylatesandactivatesasecondser/thrkinasereceptor,TGF‑betaRI(alsocalledactivinreceptor‑likekinase(ALK)‑5),oralternatively,ALK‑1.ThiscomplexphosphorylatesandactivatesSmadproteinsthatregulatetranscription(3,11,12).Contributionsoftheaccessoryreceptorsbetaglycan(alsoknownasTGF‑betaRIII)andendoglin,oruseofSmad-independentsignalingpathways,allowfordisparateactionsobservedinresponsetoTGF‑betaindifferentcontexts(11).
- Derynck,R.andK.Miyazono(2008)ColdSpringHarborLaboratoryPressp.29.
- Dunker,N.andK.Krieglstein(2000)Eur.J.Biochem.267:6982.
- Wahl,S.M.(2006)Immunol.Rev.213:213.
- Chang,H.etal.(2002)Endocr.Rev.23:787.
- Lin,J.S.etal.(2006)Reproduction132:179.
- Hinck,A.P.etal.(1996)Biochemistry35:8517.
- Mittl,P.R.E.etal.(1996)ProteinSci.5:1261.
- Derynck,R.etal.(1985)Nature316:701.
- Miyazono,K.etal.(1988)J.Biol.Chem.263:6407.
- Oklu,R.andR.Hesketh(2000)Biochem.J.352:601.
- deCaestecker,M.etal.(2004)CytokineGrowthFactorRev.15:1.
- Zuniga,J.E.etal.(2005)J.Mol.Biol.354:1052.
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商品咨询
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爱钓鱼的小猫2014-10-15
有关信号肽的很多疑惑 分子生物 123
hfztim2007-12-10
gleason分级_123
隐幽羽2018-02-04
如题，最好有详解
高级生物化学问答题123
yjgao2021-07-21
抗体常见问题与解答_蛋白123
tjzbyw2021-07-20
我想做个目的蛋白的单抗，通过基因克隆、表达、纯化来得到目的蛋白，但是因为用的是原核表达系统，缺少翻译后的正常修饰，所以肯定与天然蛋白有区别，这样的话，作出来的单抗就不一定能够识别组织中的天然蛋白了，有什么方法可以减少他们的差异？也就是尽量让单抗可以识别天然蛋白。谢谢！
Science子刊新研究找到治疗致命脑癌的关键靶点 分析行业新闻123
sunyongjun2021-07-23
http://www.medicalnewstoday.com/medicalnews.php?newsid=58498
NaturalProteinStopsDeadlyHumanBrainCancerInMice
ScientistsfromJohnsHopkinsandfromtheUniversityofMilanhaveeffectivelyproventhattheycaninhibitlethalhumanbraincancersinmiceusingaproteinthatselectivelyinducespositivechangesintheactivityofcellsthatbehavelikecancerstemcells.ThereportispublishedinNature.
Themostcommontypeofbraincancer-glioblastoma-ismarkedbythepresenceofthesestem-cell-likebraincells,which,insteadoftriggeringthereplacementofdamagedcells,formcancertissue.Stemcells,unlikeallothercellsinthebody,arecapableofformingalmostanykindofcellwhentheright"signals"triggertheirdevelopment.
Fortheirtreatmentexperiment,theresearchersreliedonaclassofproteins,bonemorphogenicproteins,thatcauseneuralstem-cell-likeclusterstolosetheirstemcellproperties,whichinturnstopstheirABIlitytodivide.
Firsttheypretreatedhumanglioblastomacellswithbonemorphogenicprotein4(BMP4),theninjectedthesetreatedcellsintomousebrains.Inmiceinjectedwithcellsthatwerenotpretreated,large,invasivecancersgrew.InthemicewithBMP4-treatedcells,nocancersgrewatall.Threetofourmonthsafterinjection,allmicethatgotuntreatedcellsdied,andnearlyallmicewithBMP4-treatedcellswerealive.
Next,thescientistsdeliveredslow-releaseBMP4-containing"beads"directlyintomousebrainswithimplantedglioblastomacells.Micethatgotemptybeadsdevelopedlargemalignanttumorsanddied.MicewithBMP4beadssurvivedmuchlonger,and80percentsurvivedfourmonthsaftercancercellimplants.
"OurideaistotreatpatientswithBMP4orsomethinglikeitrightaftersurgerytoremoveglioblastomainhopesofpreventingtheregrowthofthecancerandimprovingsurvivaltime,"saysAlessandroOlivi,M.D.,directoroftheDivisionofNeurosurgicalOncologyatHopkinsandacontributortothestudy.
OlivisaysclinicalstudiesusingBMP4couldbeginwithinayearand,ifsuccessful,drugtherapiescouldbeavailabletothepublicwithinthreetofouryears.
"ThiswasproofoftheideathatBMPscouldstopglioblastomabydepletingthestem-cell-likepopulationthatfeedsit,"saysHenryBrem,M.D.,chairmanoftheDepartmentofNeurosurgeryatHopkinsandacollaboratorinthestudy."Thisopensexcitingdoorstofutureresearchintotreatmentsandtherapiesforsuchadevastatingdisease."
NaturalProteinStopsDeadlyHumanBrainCancerInMice
ScientistsfromJohnsHopkinsandfromtheUniversityofMilanhaveeffectivelyproventhattheycaninhibitlethalhumanbraincancersinmiceusingaproteinthatselectivelyinducespositivechangesintheactivityofcellsthatbehavelikecancerstemcells.ThereportispublishedinNature.
Themostcommontypeofbraincancer-glioblastoma-ismarkedbythepresenceofthesestem-cell-likebraincells,which,insteadoftriggeringthereplacementofdamagedcells,formcancertissue.Stemcells,unlikeallothercellsinthebody,arecapableofformingalmostanykindofcellwhentheright"signals"triggertheirdevelopment.
Fortheirtreatmentexperiment,theresearchersreliedonaclassofproteins,bonemorphogenicproteins,thatcauseneuralstem-cell-likeclusterstolosetheirstemcellproperties,whichinturnstopstheirABIlitytodivide.
Firsttheypretreatedhumanglioblastomacellswithbonemorphogenicprotein4(BMP4),theninjectedthesetreatedcellsintomousebrains.Inmiceinjectedwithcellsthatwerenotpretreated,large,invasivecancersgrew.InthemicewithBMP4-treatedcells,nocancersgrewatall.Threetofourmonthsafterinjection,allmicethatgotuntreatedcellsdied,andnearlyallmicewithBMP4-treatedcellswerealive.
Next,thescientistsdeliveredslow-releaseBMP4-containing"beads"directlyintomousebrainswithimplantedglioblastomacells.Micethatgotemptybeadsdevelopedlargemalignanttumorsanddied.MicewithBMP4beadssurvivedmuchlonger,and80percentsurvivedfourmonthsaftercancercellimplants.
"OurideaistotreatpatientswithBMP4orsomethinglikeitrightaftersurgerytoremoveglioblastomainhopesofpreventingtheregrowthofthecancerandimprovingsurvivaltime,"saysAlessandroOlivi,M.D.,directoroftheDivisionofNeurosurgicalOncologyatHopkinsandacontributortothestudy.
OlivisaysclinicalstudiesusingBMP4couldbeginwithinayearand,ifsuccessful,drugtherapiescouldbeavailabletothepublicwithinthreetofouryears.
"ThiswasproofoftheideathatBMPscouldstopglioblastomabydepletingthestem-cell-likepopulationthatfeedsit,"saysHenryBrem,M.D.,chairmanoftheDepartmentofNeurosurgeryatHopkinsandacollaboratorinthestudy."Thisopensexcitingdoorstofutureresearchintotreatmentsandtherapiesforsuchadevastatingdisease."
【求助】westernblot的有关问题！123
liujingyi20062021-07-22
药学论文天然药用植物蛋白质的理化性质与分离研究金锄头文库123
2018-02-03
快速回答，谢谢
【求助】天然蛋白与重组蛋白的质量标准 生物制药版论坛123
838xu2013-11-18
请教，天然菌种发酵的蛋白和重组技术发酵的蛋白在质量检测指标上有何区别？谢谢！
【原创】天然蛋白质多肽的营养补充 营养学讨论版论坛123
szj20032010-04-06
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