Abcam, ab203193, Anti-StAR antibody

Size: 100µL
Rabbit Polyclonal STAR antibody. Suitable for IHC-P, WB and reacts with Mouse, Rat, Human samples. Cited in 11 publications. Immunogen corresponding to Synthetic Peptide within Human STAR aa 100-200 conjugated to Keyhole Limpet Haemocyanin.
Key facts
Host species:Rabbit,
Clonality:Polyclonal,
Isotype:IgG,
Carrier free:No,
Reacts with:Mouse, Rat, Human,
Applications:WB, IHC-PSee reactivity dataSee the reactivity data table below for information on validated species and application combinations.,
Immunogen:Synthetic Peptide within Human STAR aa 100-200 conjugated to Keyhole Limpet Haemocyanin. The exact immunogen used to generate this antibody is proprietary information.P49675

Properties and Storage Information:
Form-Liquid, Purification technique-Affinity purification Protein A, Storage buffer-pH: 7.4Preservative: 0.02% Proclin 300Constituents: 50% Glycerol (glycerin, glycerine), 48.98% TBS, 1X, 1% BSA, Shipped at conditions-Blue Ice, Appropriate short-term storage duration-1-2 weeks, Appropriate short-term storage conditions-+4°C, Appropriate long-term storage conditions--20°C, Aliquoting information-Upon delivery aliquot, Storage information-Avoid freeze / thaw cycle

Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
The Steroidogenic Acute Regulatory protein (StAR) also known as STARD1 plays an important role in steroid hormone synthesis. It facilitates the transport of cholesterol from the outer to the inner mitochondrial membrane essential for steroid biosynthesis. StAR has a molecular mass of approximately 30 kDa. Expression of StAR occurs predominantly in steroidogenic tissues like adrenal glands ovaries and testes. The protein's efficient functioning is necessary for the maintenance of proper steroid hormone levels in the body.
Biological function summary
The transport activity of StAR is important for the production of steroid hormones which are pivotal in numerous physiological functions. StAR does not function alone; it forms a part of a larger complex of proteins involved in mitochondrial cholesterol transfer. By enabling the conversion of cholesterol to pregnenolone a precursor to various steroid hormones StAR directly affects processes such as metabolism immune function and sexual differentiation. Abnormalities in these processes can result from disruptions in StAR's activity.
Pathways
The involvement of StAR in cholesterol transport places it in the important steroidogenic pathway. This pathway includes interactions with other pivotal proteins such as cytochrome P450scc (CYP11A1) which further converts cholesterol into pregnenolone. Another important pathway where StAR participates is the adrenal biosynthesis pathway linking it to the production of glucocorticoids and mineralocorticoids. Disruption in these pathways due to StAR deficiency or malfunction can lead to severe biological implications.
StAR is closely associated with conditions like lipoid congenital adrenal hyperplasia (LCAH) and Addison's disease. Mutations or deficiencies in StAR can interrupt steroid hormone production which is essential for managing these conditions. Additionally proteins like CYP11A1 may show functional impairment in the presence of StAR mutations exacerbating these disorders. A deeper understanding of StAR's role in these conditions can support the development of targeted therapeutic strategies.