| Field | Specification |
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| Alternative Names | SF-1 (STF-1) (Adrenal 4-binding protein) (Embryonal LTR-binding protein) (ELP) (Embryonal long terminal repeat-binding protein) (Fushi tarazu factor homolog 1) (Nuclear receptor subfamily 5 group A member 1) (Steroid hormone receptor Ad4BP) (Steroid hydroxylase positive regulator) (Ftzf1) |
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| Endotoxin Level | |
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| Form | Liquid or Lyophilized powder |
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| Reconstitution | |
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| UniProt # |
Overview
This Recombinant Protein provides recombinant Nr5a1 from Mus musculus (Mouse), produced in in vitro E.coli expression system (region 1-462aa). It is commonly used as a defined reagent for assay development, binding studies, and mechanistic research (RUO).
Key elements and design rationale
- Region: 1-462aa (domain boundaries can affect binding/activity readouts).
- Expression host: in vitro E.coli expression system (may differ from native PTMs/processing).
- Tag(s): His (supports purification/detection; consider tag effects in controls).
Biological background
Also reported as SF-1 (STF-1) (Adrenal 4-binding protein) (Embryonal LTR-binding protein) (ELP) (Embryonal long terminal repeat-binding protein) (Fushi tarazu factor homolog 1) (Nuclear receptor subfamily 5 group A member 1) (Steroid hormone receptor Ad4BP) (Steroid hydroxylase positive regulator) (Ftzf1). Transcriptional activator. Seems to be essential for sexual differentiation and formation of the primary steroidogenic tissues. Binds to the Ad4 site found in the promoter region of steroidogenic P450 genes such as CYP11A, CYP11B and CYP21B. Also regulates the AMH/Muellerian inhibiting substance gene as well as the AHCH and STAR genes. 5'-YCAAGGYC-3' and 5'-RRAGGTCA-3' are the consensus sequences for the recognition by NR5A1. The SFPQ-NONO-NR5A1 complex binds to the CYP17 promoter and regulates basal and cAMP-dependent transcriptional activity . Transcription repressor of the Moloney leukemia virus long terminal repeat in undifferentiated murine embryonal carcinoma cells. Binds phosphatidylcholine and phospholipids with a phosphatidylinositol headgroup, in particular phosphatidylbisphosphate, phosphatidylbisphosphate and phosphatidyltriphosphate. Activated by the phosphorylation of NR5A1 by HIPK3 leading to increased steroidogenic gene expression upon cAMP signaling pathway stimulation.
Research relevance and current trends
- Use of recombinant standards to improve assay calibration and cross-study comparability.
Transcriptional activator. Seems to be essential for sexual differentiation and formation of the primary steroidogenic tissues. Binds to the Ad4 site found in the promoter region of steroidogenic P450 genes such as CYP11A, CYP11B and CYP21B. Also regulates the AMH/Muellerian inhibiting substance gene as well as the AHCH and STAR genes. 5'-YCAAGGYC-3' and 5'-RRAGGTCA-3' are the consensus sequences for the recognition by NR5A1. The SFPQ-NONO-NR5A1 complex binds to the CYP17 promoter and regulates basal and cAMP-dependent transcriptional activity . Transcription repressor of the Moloney leukemia virus long terminal repeat in undifferentiated murine embryonal carcinoma cells. Binds phosphatidylcholine and phospholipids with a phosphatidylinositol headgroup, in particular phosphatidylbisphosphate, phosphatidylbisphosphate and phosphatidyltriphosphate. Activated by the phosphorylation of NR5A1 by HIPK3 leading to increased steroidogenic gene expression upon cAMP signaling pathway stimulation.
Common research applications
- Standard curve or spike-in reference for quantitative assays involving Nr5a1
- Binding and specificity benchmarking for detection reagents (conceptual)
Notes for experimental interpretation
- Recombinant constructs may not capture all native isoforms or PTMs.
- Consider tag- or host-related effects when interpreting binding or activity.
- Use appropriate blanks and matrix/control concepts to separate signal from background.
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