
- SynonymSIGLEC6,CD327,CD33L,CD33L1,OBBP1,OB-BP1,CDw327
- SourceHuman Siglec-6, Fc Tag (SI6-H5256) is expressed from human 293 cells (HEK293). It contains AA Gln 16 - Val 320 (Accession # AAH35359).Predicted N-terminus: Gln 16Request for sequence
- Molecular Characterization
This protein carries a human IgG1 Fc tag at the C-terminus.
The protein has a calculated MW of 60.3kDa. As a result of glycosylation, the protein migrates as 80-100 kDa under reducing (R) condition, and 130-150 kDa and 250-300 kDa under non-reducing (NR) condition (SDS-PAGE).
- EndotoxinLess than 1.0 EU per μg by the LAL method.
- Purity
>90% as determined by SDS-PAGE.
- Formulation
Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 100 mM Glycine, pH7.5. Normally trehalose is added as protectant before lyophilization.
Contact us for customized product form or formulation.
- Reconstitution
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
- Storage
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- -20°C to -70°C for 12 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.

Human Siglec-6, Fc Tag on SDS-PAGE under reducing (R) and non-reducing (NR) conditions. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 90%.
- BackgroundSialic acid-binding Ig-like lectin 6 (SIGLEC6) is also known as CD antigen CD327, CD33 antigen-like 1 (CD33L or CD33L1), Obesity-binding protein 1 (OB-BP1). SIGLEC6 belongs to the immunoglobulin superfamily and SIGLEC (sialic acid binding Ig-like lectin) family, which contains two Ig-like C2-type (immunoglobulin-like) domains and one Ig-like V-type (immunoglobulin-like) domain. SIGLEC6 mediates sialic-acid dependent binding to cells. SIGLEC6 binds to alpha-2,6-linked sialic acid. The sialic acid recognition site may be masked by cis interactions with sialic acids on the same cell surface.
- References
- (1)Takei Y., et al., 1997, Cytogenet. Cell Genet. 78:295-300.
- (2)Patel N., et al., 1999, J. Biol. Chem. 274:22729-22738.
Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.
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本人目前需从电鳗放电器官中提取乙酰胆碱受体蛋白,提纯需要的步骤和电鳗器官都可以提供,有没有提供外包提纯服务的公司或者实验室。
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."
算上其他生物24种
大概是记不太清了

