ProductName | Recombinanthumanp53[1-363]protein(C-terminaldeletion) |
Size | 5,000U |
Description | Thisgeneencodestumorproteinp53,whichrespondstodiversecellularstressestoregulatetargetgenesthatinducecellcyclearrest,apoptosis,senescence,DNArepair,orchangesinmetabolism.p53proteinisexpressedatlowlevelinnormalcellsandatahighlevelinavarietyoftransformedcelllines,whereit'sbelievedtocontributetotransformationandmalignancy.p53isaDNA-bindingproteincontainingtranscriptionactivation,DNA-binding,andoligomerizationdomains.Itispostulatedtobindtoap53-bindingsiteandactivateexpressionofdownstreamgenesthatinhibitgrowthand/orinvasion,andthusfunctionasatumorsuppressor.Mutantsofp53thatfrequentlyoccurinanumberofdifferenthumancancersfailtobindtheconsensusDNAbindingsite,andhencecausethelossoftumorsuppressoractivity.Alterationsofthisgeneoccurnotonlyassomaticmutationsinhumanmalignancies,butalsoasgermlinemutationsinsomecancer-pronefamilieswithLi-Fraumenisyndrome.Multiplep53variantsduetoalternativepromotersandmultiplealternativesplicinghavebeenfound.Thesevariantsencodedistinctisoforms,whichcanregulatep53transcriptionalactivity. Humanwild-typep53proteiniscomposedof393aminoacidresidueswithseveraldistinctregions.TheN-terminalactivationdomainallowsp53proteintorecruitthebasaltranscriptionmachineryandactivatetheexpressionoftargetgenes,whereasthecoredomainbindstotargetDNAinasequence-specificmannerandthemajorityofmutationsfoundinhumantumorsoccurintheregionofthegeneencodingthisdomain(1-3).TheC-terminaldomainiscomposedofpredominantlybasicresiduesandmodificationoftheC-terminalbasicdomain,includingacetylation,glycosylationandphosphorylation,isanessentialmechanismforregulatingp53function(4-6). |
Applications |
|
Source | baculovirus/sf9cells |
FusionTag | 6XHis |
PurificationMethod | FPLC |
UnitDefinition(Activity) | 1unitequalsto1nanogramofpurifiedprotein.1unitissufficientforagelmobilityshiftassayina20µlreaction;50unitsaresufficientforreconstitutedtranscriptionassayand100unitsaresufficientforaprotein-proteininteractionassay. |
Purity | ~95%asdeterminedbySDS-PAGE |
GeneID | 7157 |
Accession# | NM_000546 |
GeneName | tumorproteinp53 |
GeneSymbol | TP53 |
GeneSynonyms | P53;BCC7;LFS1;TRP53 |
MW | 39.5kDa |
ProteinSequence | 1MEEPQSDPSVEPPLSQETFSDLWKLLPENNVLSPLPSQAMDDLMLSPDDIEQWFTEDPGP 61DEAPRMPEAAPPVAPAPAAPTPAAPAPAPSWPLSSSVPSQKTYQGSYGFRLGFLHSGTAK 121SVTCTYSPALNKMFCQLAKTCPVQLWVDSTPPPGTRVRAMAIYKQSQHMTEVVRRCPHHE 181RCSDSDGLAPPQHLIRVEGNLRVEYLDDRNTFRHSVVVPYEPPEVGSDCTTIHYNYMCNS 241SCMGGMNRRPILTIITLEDSSGNLLGRNSFEVRVCACPGRDRRTEEENLRKKGEPHHELP 301PGSTKRALPNNTSSSPQPKKKPLDGEYFTLQIRGRERFEMFRELNEALELKDAQAGKEPG 361GSR |
StorageBuffer | 20mMTris-Cl(pH8.0),20%Glycerol,100mMKCl,1mMDTTand0.2mMEDTA |
Storage | -20to-80°C. |
Shipping | 4°Cordryice |
References | 1.Finlay,C.etal.,(1989)Cell57,1083-1093 2.Michalovitz,D.etal.,(1990)Cell62,671-680 3.Baker,S.etal.,(1990)Science249,912-915 |