| Source: |
Escherichia coli |
| Molecular Weight: |
Approximately 60.1 kDa, a single non-glycosylated polypeptide chain containing 538 amino acids. |
| AA Sequence: |
NKQNTASTET TTTNEQPKPE SSELTTEKAG QKTDDMLNSN DMIKLAPKEM PLESAEKEEK KSEDKKKSEE DHTEEINDKI YSLNYNELEV LAKNGETIEN FVPKEGVKKA DKFIVIERKK KNINTTPVDI SIIDSVTDRT YPAALQLANK GFTENKPDAV VTKRNPQKIH IDLPGMGDKA TVEVNDPTYA NVSTAIDNLV NQWHDNYSGG NTLPARTQYT ESMVYSKSQI EAALNVNSKI LDGTLGIDFK SISKGEKKVM IAAYKQIFYT VSANLPNNPA DVFDKSVTFK ELQRKGVSNE APPLFVSNVA YGRTVFVKLE TSSKSNDVEA AFSAALKGTD VKTNGKYSDI LENSSFTAVV LGGDAAEHNK VVTKDFDVIR NVIKDNATFS RKNPAYPISY TSVFLKNNKI AGVNNRTEYV ETTSTEYTSG KINLSHQGAY VAQYEILWDE INYDDKGKEV ITKRRWDNNW YSKTSPFSTV IPLGANSRNI RIMARECTGL AWEWWRKVID ERDVKLSKEI NVNISGSTLS PYGSITYK |
| Purity: |
> 97% by SDS-PAGE and HPLC analyses. |
| Physical Appearance: |
Sterile filtered white lyophilized (freeze-dried) powder. |
| Formulation: |
Lyophilized from a 0.2 μm filtered concentrated solution in PBS, pH7.4. |
| Endotoxin: |
Less than 0.1 EU/μg of rStreptolysin O as determined by LAL method. |
| Reconstitution: |
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20°C. Further dilutions should be made in appropriate buffered solutions. |
| Stability & Storage: |
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.- Refer to lot specific COA for the Use by Date when stored at ≤ -20°C as supplied.- 1 month, 2 to 8°C under sterile conditions after reconstitution.- 3 months, -20 to -70°C under sterile conditions after reconstitution. |
| Background: |
A sulfhydryl-activated toxin that induces cytolysis by creating pores in cholesterol-rich host membranes. Upon binding to the target membranes, the protein undergoes a significant conformational change, allowing it to insert into the host membrane and form an oligomeric pore complex. Cholesterol is likely necessary for the binding, insertion, and pore formation processes. |
