Neutrophil elastase (ELANE), human, recombinant

Organism: Homo sapiens (Human). Source: E.coli. Expression Region: 30-267aa. Protein Length: Full Length of Mature Protein. Tag Info: N-terminal 10xHis-tagged. Target Protein Sequence: IVGGRRARPH AWPFMVSLQL RGGHFCGATL IAPNFVMSAA HCVANVNVRA VRVVLGAHNL SRREPTRQVF AVQRIFENGY DPVNLLNDIV ILQLNGSATI NANVQVAQLP AQGRRLGNGV QCLAMGWGLL GRNRGIASVL QELNVTVVTS LCRRSNVCTL VRGRQAGVCF GDSGSPLVCN GLIHGIASFV RGGCASGLYP DAFAPVAQFV NWIDSIIQRS EDNPCPHPRD PDPASRTH. Purity: Greater than 85% as determined by SDS-PAGE. Endotoxin: Not test. Biological Activity: n/a. Form: Liquid or Lyophilized powder. Buffer: If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0. Reconstitution: We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20 °C/-80 °C. Our default final concentration of glycerol is 50%. Customers could use it as reference. Storage: The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20 °C/-80 °C. The shelf life of lyophilized form is 12 months at -20 °C/-80 °C. Notes: Repeated freezing and thawing is not recommended. Store working aliquots at 4 °C for up to one week. Relevance: Retroviral envelope proteins mediate receptor recognition and membrane fusion during early infection. Endogenous envelope proteins may have kept, lost or modified their original function during evolution. This endogenous envelope protein has lost its original fusogenic properties. SU mediates receptor recognition. TM anchors the envelope heterodimer to the viral membrane through one transmembrane domain. The other hydrophobic domain, called fusion peptide, mediates fusion of the viral membrane with the target cell membrane. Reference: "Identification of a Rev-related protein by analysis of spliced transcripts of the human endogenous retroviruses HTDV/HERV-K." Loewer R., Toenjes R.R., Korbmacher C., Kurth R., Loewer J. J. Virol. 69:141-149(1995). Function: nan