Recombinant Human STAR Protein (Sumo Tag)
Product Specifications
Background
The protein encoded by this gene plays a key role in the acute regulation of steroid hormone synthesis by enhancing the conversion of cholesterol into pregnenolone. This protein permits the cleavage of cholesterol into pregnenolone by mediating the transport of cholesterol from the outer mitochondrial membrane to the inner mitochondrial membrane. Mutations in this gene are a cause of congenital lipoid adrenal hyperplasia (CLAH), also called lipoid CAH. A pseudogene of this gene is located on chromosome 13.
Abbreviation
STAR
Synonyms
Cholesterol trafficker; Luteinizing hormone induced protein; mitochondrial; Mitochondrial steroid acute regulatory protein; StAR; StAR related lipid transfer (START) domain containing 1; STAR; StARD1; START domain containing 1; START domain containing protein 1; START domain-containing protein 1; Steroid acute regulatory protein; Steroidogenic acute regulator; Steroidogenic acute regulatory protein; Steroidogenic acute regulatory protein mitochondrial
UniProt
P49675
Accession Number
P49675
Expression System
E.coli
Tag
N-Sumo
Sequence
Met1-Cys285
Field of Research
Signal Transduction; Cancer; Metabolism
Endotoxin
< 10 EU/mg of the protein as determined by the LAL method.
Purity
> 90% as determined by reducing SDS-PAGE.
Bioactivity
Not validated for activity
Reconstitution
It is recommended that sterile water be added to the vial to prepare a stock solution of 0.5 mg/mL. Concentration is measured by UV-Vis.
Shipping Conditions
This product is provided as lyophilized powder which is shipped with ice packs.
Storage Conditions
Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80°C. Reconstituted protein solution can be stored at 4-8°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.
Calculated Molecular Weight
44.2 kDa
Observed Molecular Weight
45-50 kDa
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with 5% Trehalose and 5% Mannitol.
Species
Human
Available Sizes
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