STAR
Reactivity: Human
WB
Host: Mouse
Polyclonal
unconjugated
Application Notes
The concentration stated for each application is a general starting point. Variations in protocols, secondaries and substrates may require the StAR antibody to be titered up or down for optimal performance.
Restrictions
For Research Use only
Format
Liquid
Concentration
0.2 mg/mL
Buffer
0.2 mg/mL in 1X PBS with 0.1 mg/mL BSA (US sourced) and 0.05 % sodium azide
Preservative
Sodium azide
Precaution of Use
This product contains Sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
Storage
4 °C,-20 °C
Storage Comment
Store the StAR antibody at 2-8oC (with azide) or aliquot and store at -20oC or colder (without azide).
Target
STAR
(Steroidogenic Acute Regulatory Protein (STAR))
Alternative Name
StAR
Background
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.