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Render Timestamp:
4/2/2025, 11:41:47 PM EDT
4/3/2025, 3:41:47 AM UTC
Commit: 461ca8d8fe5b1efd4c01fc87e5b5eb592e2d154a
XML generation date: 2025-03-07 13:06:41.200
Product last modified at: 2025-03-31T15:45:08.454Z
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PDP - Template Name: Monoclonal Antibody
PDP - Template ID: *******c5e4b77
R Recombinant
Recombinant: Superior lot-to-lot consistency, continuous supply, and animal-free manufacturing.

STF-1 (D1Z2A) XP® Rabbit mAb #12800

Filter:
  • WB
  • IP
  • IF
  • ChIP
Western Blotting Image 1: STF-1 (D1Z2A) XP® Rabbit mAb
Western blot analysis of extracts from various cell lines using STF-1 (D1Z2A) XP® Rabbit mAb (upper) and GAPDH (D16H11) XP® Rabbit mAb #5174 (lower).

To Purchase # 12800

Cat. # Size Qty. Price
12800T 20 µl
$168
12800S 100 µl
$379

Supporting Data

REACTIVITY H M
SENSITIVITY Endogenous
MW (kDa) 50
Source/Isotype Rabbit IgG
Application Key:
  • WB-Western Blotting 
  • IP-Immunoprecipitation 
  • IF-Immunofluorescence 
  • ChIP-Chromatin Immunoprecipitation 
Species Cross-Reactivity Key:
  • H-Human 
  • M-Mouse 
  • Related Products

Product Information

Product Usage Information

For optimal ChIP and ChIP-seq results, use 10 μl of antibody and 10 μg of chromatin (approximately 4 x 106 cells) per IP. This antibody has been validated using SimpleChIP® Enzymatic Chromatin IP Kits.

Application Dilution
Western Blotting 1:1000
Immunoprecipitation 1:100
Immunofluorescence (Immunocytochemistry) 1:100
Chromatin IP 1:50
Chromatin IP-seq 1:50

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.

Protocol

Specificity / Sensitivity

STF-1 (D1Z2A) XP® Rabbit mAb recognizes endogenous levels of total STF-1 protein. This antibody does not cross-react with LRH-1/NR5A2.

Species Reactivity:

Human, Mouse

The antigen sequence used to produce this antibody shares 100% sequence homology with the species listed here, but reactivity has not been tested or confirmed to work by CST. Use of this product with these species is not covered under our Product Performance Guarantee.

Species predicted to react based on 100% sequence homology:

Bovine

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Leu184 of human STF-1 protein.

Background

The orphan nuclear receptor, steroidogenic factor 1 (STF-1, also called Ad4BP), is encoded by the NR5A1 gene and plays an instrumental role in directing the transcriptional control of steroidogenesis (1). Initially identified as a tissue-specific transcriptional regulator of cytochrome P450 steroid hydroxylases, research studies of both global (2) and tissue-specific knockout mice (3-6) have demonstrated that STF-1 is required for the development of adrenal glands, gonads, ventromedial hypothalamus, and for the proper functioning of pituitary gonadotropes. Indeed, humans with mutations that render STF-1 transcriptionally inactive can present with testicular failure, ovarian failure, and adrenal insufficiency (7,8). Furthermore, dysregulation of STF-1 has been linked to diseases such as endometriosis (9) and adrenocortical carcinoma (10).

Like other nuclear hormone receptors, STF-1 has a modular domain structure composed of an amino-terminal zinc finger DNA-binding domain, a ligand-binding domain, a carboxy-terminal AF-2 activation domain, and a hinge region with AF-1-like activation activity. STF-1 also contains a fushi tarazu factor 1 box, which functions as an accessory DNA binding domain (11). STF-1 is primarily phosphorylated at Ser203, which is thought to enhance its transcriptional activity by promoting complex formation with transcriptional cofactors (12). In addition to phosphorylation at Ser203, STF-1 is subject to SUMO conjugation and acetylation at ε-amino groups of target lysine residues. Whereas SUMOylation represses STF-1 function (13,14), acetylation enhances its transcriptional activity (15).
For Research Use Only. Not For Use In Diagnostic Procedures.
Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
SimpleChIP is a registered trademark of Cell Signaling Technology, Inc.
XP is a registered trademark of Cell Signaling Technology, Inc.
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