StAR Antibody / Steroidogenic acute regulatory protein
Steroidogenic Acute Regulatory Protein (STAR) controls the rate-limiting step of steroidegenesis by translocating cholesterol from the outer mitochondrial membrane to the inner membrane where it is later cleaved to pregnenolone. It is primarily present in steroid-producing cells, including Leydig cells in the testis, theca cells and luteal cells in the ovary and adrenal cells in the adrenal cortex. Due to low levels of pregnenolone, seminomas and Leydig cell tumors display no specific STAR staining. Therefore, STAR antibody may assist in differentiating sex cord stromal tumors (SCST), seminomas and embryonal carcinomas.
Product Specifications
CAS Number
9007-83-4
Specifications
Immunohistochemistry (FFPE) : 1-2 µg/mL for 30 min at RT
UniProt
P49675
Host
Mouse
Reactivity
Human
Immunogen
A portion of amino acids 39-108 from the human protein was used as the immunogen for this StAR antibody.
Clonality
Monoclonal
Isotype
IgG1 k
Clone
STAR/2154
Applications
IHC-P
Purity
Protein G affinity chromatography
Format
Purified
Buffer
0.2 mg/ml in 1X PBS with 0.1 mg/ml BSA (US sourced) and 0.05% sodium azide
Reconstitution
Store the StAR antibody at 2-8oC (with azide) or aliquot and store at -20oC or colder (without azide).
Limitations
This StAR antibody is available for research use only.
Storage Conditions
Store the StAR antibody at 2-8°C (with azide) or aliquot and store at -20°C or colder (without azide) .
Formulation
0.2 mg/mL in 1X PBS with 0.1 mg/mL BSA (US sourced) and 0.05% sodium azide
Applications Notes
Location
Cytoplasmic (mitochondrial)
Image Legend
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