Biliverdin reductase A (BLVRA), human, recombinant

Organism: Homo sapiens (Human). Source: E.coli. Expression Region: 1-296aa. Protein Length: Full Length. Tag Info: N-terminal GST-tagged. Target Protein Sequence: MNAEPERKFG VVVVGVGRAG SVRMRDLRNP HPSSAFLNLI GFVSRRELGS IDGVQQISLE DALSSQEVEV AYICSESSSH EDYIRQFLNA GKHVLVEYPM TLSLAAAQEL WELAEQKGKV LHEEHVELLM EEFAFLKKEV VGKDLLKGSL LFTAGPLEEE RFGFPAFSGI SRLTWLVSLF GELSLVSATL EERKEDQYMK MTVCLETEKK SPLSWIEEKG PGLKRNRYLS FHFKSGSLEN VPNVGVNKNI FLKDQNIFVQ KLLGQFSEKE LAAEKKRILH CLGLAEEIQK YCCSRK. Purity: Greater than 90% 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: Reduces the gamma-methene bridge of the open tetrapyrrole, biliverdin IX alpha, to bilirubin with the concomitant oxidation of a NADH or NADPH cofactor. Reference: "Human biliverdin IXalpha reductase is a zinc-metalloprotein. Characterization of purified and Escherichia coli expressed enzymes." Maines M.D., Polevoda B.V., Huang T.-J., McCoubrey W.K. Jr. Eur. J. Biochem. 235:372-381(1996). Function: Reduces the gamma-methene bridge of the open tetrapyrrole, biliverdin IX alpha, to bilirubin with the concomitant oxidation of a NADH or NADPH cofactor.