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Human SCLY / Selenocysteine Lyase Protein (His Tag)

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Human SCLY Protein Product Information
Synonym:SCLY, SCL
Protein Construction:A DNA sequence encoding the human SCLY (AAH07891.1) (Met1-Ala445) was expressed with a C-terminal polyhistidine tag.
Expressed Host:Baculovirus-Insect Cells
Shipping:In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.
Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Human SCLY Protein QC Testing
Purity:> 95 % as determined by SDS-PAGE
Endotoxin:< 1.0 EU per μg of the protein as determined by the LAL method
Stability:Samples are stable for up to twelve months from date of receipt at -70℃
Predicted N Terminal:Met
Molecule Mass:The secreted recombinant human SCLY consists of 455 amino acids and predicts a molecular mass of 49.5 KDa. The apparent molecular mass of the protein is approximately 46 KDa in SDS-PAGE under reducing conditions due to glycosylation.
Formulation:Lyophilized from sterile 20mM Tris, 500mM NaCl, 10% glycerol, pH 8.0.
1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
2. Please contact us for any concerns or special requirements.
Human SCLY Protein Usage Guide
Storage:Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution:A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
Human SCLY Protein SDS-PAGE
Human SCLY / Selenocysteine Lyase Protein (His Tag) SDS-PAGE
Other SCLY Recombinant Protein Products
SCLY / Selenocysteine Lyase Background

SCLY, also known as selenocysteine lyase, belongs to the class-V pyridoxal-phosphate-dependent aminotransferase family. It is a novel enzyme that exclusively decomposes L-selenocysteine into L-alanine and H2Se in various mammalian tissues. SCLY contains pyridoxal 5'-phosphate and weighs approximately 85,000. SCLY participates in selenoamino acid metabolism. It employs one cofactor, pyridoxal phosphate. Its maximum reactivity is at about pH 9.0. It was shown that 1 mol of selenocysteine is converted to equimolar amounts of alanine and H2Se. The following amino acids are insert: L-cysteine, L-serine, L-cysteine sulfinate, selenocysteamine, Se-ethyl-DL-selenocysteine, and L-selenohomocysteine. L-Cysteine (Ki, 1.0 mM) competes with L-selenocysteine (Km, 0.83mM) to inhibit the enzyme reaction.

Human SCLY / Selenocysteine Lyase References
  • Johansson AL. et al., 2012, PLoS One. 7 (1): e30528.
  • Collins R. et al., 2012, PLoS One. 7 (1): e30581.
  • N Esaki. et al., 1982, The Journal of Biological Chemistry. 257: 4386-91.
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    Catalog: 14905-H08B-100
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