Rabbit Recombinant Monoclonal CYP11A1 antibody. Suitable for mIHC, IP, WB, ICC/IF, Flow Cyt (Intra), IHC-P and reacts with Human, Mouse, Rat samples. Cited in 2 publications.
IgG
Rabbit
pH: 7.2 - 7.4
Preservative: 0.01% Sodium azide
Constituents: 59% PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA
Liquid
Monoclonal
mIHC | IP | WB | ICC/IF | Flow Cyt (Intra) | IHC-P | |
---|---|---|---|---|---|---|
Human | Tested | Tested | Tested | Tested | Tested | Tested |
Mouse | Expected | Tested | Tested | Not recommended | Not recommended | Tested |
Rat | Expected | Tested | Tested | Not recommended | Tested | Tested |
Species | Dilution info | Notes |
---|---|---|
Species Human | Dilution info 1/10000 | Notes Perform heat-mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol. |
Species | Dilution info | Notes |
---|---|---|
Species Mouse, Rat | Dilution info Use at an assay dependent concentration. | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Mouse | Dilution info 1/30 | Notes - |
Species Human | Dilution info 1/30 | Notes - |
Species Rat | Dilution info 1/30 | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Mouse | Dilution info 1/1000 | Notes - |
Species Rat | Dilution info 1/1000 | Notes - |
Species Human | Dilution info 1/1000 | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Human | Dilution info 1/50 | Notes ICC application does not react with Mouse and Rat species. |
Species | Dilution info | Notes |
---|---|---|
Species Mouse | Dilution info - | Notes ICC application does not react with Mouse and Rat species. |
Species Rat | Dilution info - | Notes ICC application does not react with Mouse and Rat species. |
Species | Dilution info | Notes |
---|---|---|
Species Human | Dilution info 1/50 | Notes FC application does not react with Mouse species. |
Species Rat | Dilution info 1/50 | Notes FC application does not react with Mouse species. |
Species | Dilution info | Notes |
---|---|---|
Species Mouse | Dilution info - | Notes FC application does not react with Mouse species. |
Species | Dilution info | Notes |
---|---|---|
Species Human | Dilution info 1/10000 | Notes - |
Species Mouse | Dilution info 1/10000 | Notes - |
Species Rat | Dilution info 1/10000 | Notes - |
A cytochrome P450 monooxygenase that catalyzes the side-chain hydroxylation and cleavage of cholesterol to pregnenolone, the precursor of most steroid hormones (PubMed:21636783). Catalyzes three sequential oxidation reactions of cholesterol, namely the hydroxylation at C22 followed with the hydroxylation at C20 to yield 20R,22R-hydroxycholesterol that is further cleaved between C20 and C22 to yield the C21-steroid pregnenolone and 4-methylpentanal (PubMed:21636783). Mechanistically, uses molecular oxygen inserting one oxygen atom into a substrate and reducing the second into a water molecule. Two electrons are provided by NADPH via a two-protein mitochondrial transfer system comprising flavoprotein FDXR (adrenodoxin/ferredoxin reductase) and nonheme iron-sulfur protein FDX1 or FDX2 (adrenodoxin/ferredoxin) (PubMed:21636783).
CYPXIA1, Cholesterol desmolase, Cytochrome P450 11A1, Cytochrome P450(scc), CYP11A, CYP11A1
Rabbit Recombinant Monoclonal CYP11A1 antibody. Suitable for mIHC, IP, WB, ICC/IF, Flow Cyt (Intra), IHC-P and reacts with Human, Mouse, Rat samples. Cited in 2 publications.
IgG
Rabbit
pH: 7.2 - 7.4
Preservative: 0.01% Sodium azide
Constituents: 59% PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA
Liquid
Monoclonal
EPR24868-86
Affinity purification Protein A
ICC application does not react with Mouse and Rat species.
Flow Cyt application does not react with Mouse species.
Blue Ice
1-2 weeks
+4°C
-20°C
Upon delivery aliquot
Avoid freeze / thaw cycle
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.
This product is a recombinant monoclonal antibody, which offers several advantages including:
For more information, read more on recombinant antibodies.
This supplementary information is collated from multiple sources and compiled automatically.
CYP11A1 also called cytochrome P450scc is an important enzyme that catalyzes the first step in steroid hormone biosynthesis. This enzyme has a molecular weight of approximately 60 kDa. It is primarily located in the mitochondria of steroidogenic tissues such as the adrenal cortex testes and ovaries. CYP11A1 converts cholesterol into pregnenolone a precursor for all steroid hormones. Its gene expression is tightly regulated by trophic hormones which play an important role in modulating steroid production.
CYP11A1 is a member of the cytochrome P450 superfamily a large group of enzymes known for their role in oxidation and metabolism. It exists in the mitochondrial electron transport chain working closely with proteins such as ferredoxin and ferredoxin reductase. These interactions facilitate the conversion of cholesterol to pregnenolone. Through these biochemical activities CYP11A1 controls the synthesis rate of steroid hormones influencing various physiological functions including metabolism immune response and reproductive system dynamics.
CYP11A1 operates within the steroidogenesis pathway which is essential for the synthesis of steroid hormones like cortisol and aldosterone. It directly interacts with StAR protein which transports cholesterol into mitochondria initiating the steroidogenesis process. Moreover CYP11A1 fits into the pregnenolone biosynthesis pathway showing functional connectivity with other cytochrome P450 enzymes like CYP17A1. These interconnected pathways highlight the role of CYP11A1 as a vital catalyst in hormone synthesis affecting both endocrine and metabolic pathways.
CYP11A1 mutations or expression abnormalities have associations with conditions such as congenital adrenal hyperplasia (CAH) and primary adrenal insufficiency. CAH arises from enzyme deficiencies in the steroidogenesis pathway and changes in CYP11A1 activity can exacerbate the disorder by altering cortisol and aldosterone synthesis. Additionally the enzyme’s link with StAR protein suggests a possible connection to lipoid congenital adrenal hyperplasia where defects in cholesterol transport may disrupt steroid production. Understanding these relationships helps in exploring therapeutic targets for steroid-related diseases.
We have tested this species and application combination and it works. It is covered by our product promise.
We have not tested this specific species and application combination in-house, but expect it will work. It is covered by our product promise.
This species and application combination has not been tested, but we predict it will work based on strong homology. However, this combination is not covered by our product promise.
We do not recommend this combination. It is not covered by our product promise.
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In the unlikely event of one of our products not working as expected, you are covered by our product promise.
Full details and terms and conditions can be found here:
Terms & Conditions.
Blocking and diluting buffer and concentration: 5% NFDM/TBST
Negative control: human heart (PMID:19491374, 21520051)
The band below (~37 kDa) in lane 2 may be caused by degradation.
Exposure time: Lane 1: 7.75 seconds Lane 2-4: 37 seconds
All lanes: Western blot - Anti-CYP11A1 antibody [EPR24868-86] (ab272494) at 1/1000 dilution
Lane 1: Human adrenal gland tissue lysate at 20 µg
Lane 2: Human testis tissue lysate at 20 µg
Lane 3: Human heart tissue lysate at 20 µg
Lane 4: JEG-3 (Human placenta epithelial choriocarcinoma) whole cell lysate at 20 µg
All lanes: Goat Anti-Rabbit IgG (HRP) with minimal cross-reactivity with human IgG at 1/2000 dilution
Predicted band size: 60 kDa
Observed band size: 50 kDa
Blocking and diluting buffer and concentration: 5% NFDM/TBST
Low expression: brain (PMID: 21520051, 19491374)
Lane 7-9: This blot was developed using a higher sensitivity ECL substrate.
The band below (~37 kDa) in lane 1 may be caused by degradation.
Exposure time: Lane 1-4, 7-9: 3 minutes Lane 5-6: 37 seconds
All lanes: Western blot - Anti-CYP11A1 antibody [EPR24868-86] (ab272494) at 1/1000 dilution
Lane 1: Mouse testis tissue lysate at 20 µg
Lane 2: Mouse brain tissue lysate at 20 µg
Lane 3: Rat testis tissue lysate at 20 µg
Lane 4: Rat brain tissue lysate at 20 µg
Lane 5: Mouse ovary tissue lysate at 20 µg
Lane 6: Rat ovary tissue lysate at 20 µg
Lane 7: NIH/3T3 (mouse embryonic fibroblast) whole cell lysate at 20 µg
Lane 8: PC-12 (rat adrenal gland pheochromocytoma) whole cell lysate at 20 µg
Lane 9: Rat-1 (rat embryonic fibroblast) whole cell lysate at 20 µg
All lanes: Goat Anti-Rabbit IgG, (H+L), Peroxidase conjugated (Goat Anti-Rabbit IgG H&L (HRP) ab97051) at 1/100000 dilution
Predicted band size: 60 kDa
Observed band size: 50 kDa
Immunohistochemical analysis of paraffin-embedded Human adrenal gland tissue labelling CYP11A1 with ab272494 at 1/10000 (0.054 ug/ml) followed by a ready to use LeicaDS9800 (BNOD™, Polymer Refine Detection) was used. Positive staining on human adrenal cortex (PMID: 22796438). (A) Low‑powered (magnification, x40) and (B) high‑powered (magnification, x400) microscopic images. The section was incubated with ab272494 for 30 mins at room temperature.The immunostaining was performed on a Leica Biosystems BOND® RX instrument Counterstained with Hematoxylin.
Secondary antibody only control: Secondary antibody is a ready to use LeicaDS9800 (BOND™ Polymer Refine Detection) was used.
Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0, epitope retrieval solution2) for 20 minsn was used.
Immunohistochemical analysis of paraffin-embedded Human testis tissue labelling CYP11A1 with ab272494 at 1/10000 (0.054 ug/ml) followed by a ready to use LeicaDS9800 (BOND™ Polymer Refine Detection). Positive staining on Leydig cells of human testis. The section was incubated with ab272494 for 30 mins at room temperature.The immunostaining was performed on a Leica Biosystems BOND® RX instrument Counterstained with Hematoxylin.
Secondary antibody only control: Secondary antibody is a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection) was used.
Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0, epitope retrieval solution2) for 20 mins
Immunohistochemical analysis of paraffin-embedded Mouse testis tissue labelling CYP11A1 with ab272494 at 1/10000 (0.054 ug/ml) followed by a ready to use LeicaDS9800(BOND™ Polymer Refine Detection) was used. Positive staining on Leydig cells of mouse testis. The section was incubated with ab272494 for 30 mins at room temperature.The immunostaining was performed on a Leica Biosystems BOND® RX instrument Counterstained with Hematoxylin.
Secondary antibody only control: Secondary antibody is a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection) was used.
Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0, epitope retrieval solution2) for 20 mins
Immunohistochemical analysis of paraffin-embedded Rat adrenal gland tissue labelling CYP11A1 with ab272494 at 1/10000 (0.054 ug/ml) followed by a ready to use LeicaDS9800 (BOND™ Polymer Refine Detection)was used. Positive staining on rat adrenal cortex. The section was incubated with ab272494 for 30 mins at room temperature.The immunostaining was performed on a Leica Biosystems BOND® RX instrument Counterstained with Hematoxylin.
Secondary antibody only control: Secondary antibody is a ready to use LeicaDS9800 (BOND™ Polymer Refine Detection) was used.
Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0, epitope retrieval solution2) for 20 mins
CYP11A1 was immunoprecipitated from 0.35 mg JEG-3 (Human placenta epithelial choriocarcinoma) whole cell lysate with ab272494 at 1/30 dilution (2ug in 0.35mg lysates). Western blot was performed on the immunoprecipitate using ab272494 at 1/1000 dilution. VeriBlot for IP secondary antibody(HRP)(VeriBlot for IP Detection Reagent (HRP) ab131366) was used at 1/5000 dilution.
Lane 1: JEG-3 (Human placenta epithelial choriocarcinoma) whole cell lysate 10μg
Lane 2: ab272494 IP in JEG-3 whole cell lysate
Lane 3: Rabbit monoclonal IgG (Rabbit IgG, monoclonal [EPR25A] - Isotype Control ab172730) instead of ab272494 in JEG-3 whole cell lysate
Blocking and dilution buffer and concentration: 5% NFDM/TBST.
Exposure time: 58 seconds
All lanes: Immunoprecipitation - Anti-CYP11A1 antibody [EPR24868-86] (ab272494)
Predicted band size: 60 kDa
Observed band size: 50 kDa
Immunohistochemical analysis of paraffin-embedded Human cardiac muscle tissue labelling CYP11A1 with ab272494 at 1/10000 (0.054 ug/ml) followed by a ready to use LeicaDS9800 (BOND™ Polymer Refine Detection). Negative control: no staining on human cardiac muscle. The section was incubated with ab272494 for 30 mins at room temperature.The immunostaining was performed on a Leica Biosystems BOND® RX instrument Counterstained with Hematoxylin.
Secondary antibody only control: Secondary antibody is a ready to use LeicaDS9800 (BOND™ Polymer Refine Detection)was used.
Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0, epitope retrieval solution2) for 20 mins
CYP11A1 was immunoprecipitated from 0.35 mg Mouse testis tissue lysate with ab272494 at 1/30 dilution (2 μg in 0.35mg lysates). Western blot was performed on the immunoprecipitate using ab272494 at 1/1000 dilution. VeriBlot for IP secondary antibody(HRP)(VeriBlot for IP Detection Reagent (HRP) ab131366) was used at 1/5000 dilution.
Lane 1: Mouse testis tissue lysate 10μg
Lane 2: ab272494 IP in Mouse testis tissue lysate
Lane 3: Rabbit monoclonal IgG (Rabbit IgG, monoclonal [EPR25A] - Isotype Control ab172730) instead of ab272494 in mouse testis tissue lysate
Blocking and dilution buffer and concentration: 5% NFDM/TBST.
Exposure time: 10 seconds
All lanes: Immunoprecipitation - Anti-CYP11A1 antibody [EPR24868-86] (ab272494)
Predicted band size: 60 kDa
Observed band size: 50 kDa
Immunofluorescent analysis of 100% methanol-fixed, 0.1% TritonX-100 permeabilized JEG-3 (human placenta epithelial choriocarcinoma) cells labelling CYP11A1 with ab272494 at 1/50 dilution, followed by Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) preadsorbed ab150081 Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) preadsorbed antibody at 1/1000 dilution (Green). Confocal image showing cytoplasmic staining colocalized with mitochondrial marker (Anti-COX IV antibody [mAbcam33985] - Mitochondrial Marker ab33985) in JEG-3 cell line is observed. Anti-COX IV antibody [mAbcam33985] - Mitochondrial Marker ab33985 Anti-COX IV mouse monoclonal antibody - Mitochondrial Marker was used to counterstain mitochondrion at 1/1000 dilution (Red). The Nuclear counterstain was DAPI (Blue).
Secondary antibody only control: Secondary antibody is Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) preadsorbed ab150081 Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) preadsorbed at 1/1000 dilution.
CYP11A1 was immunoprecipitated from 0.35 mg Rat testis tissue lysate with ab272494 at 1/30 dilution (2 μg in 0.35mg lysates). Western blot was performed on the immunoprecipitate using ab272494 at 1/1000 dilution. VeriBlot for IP secondary antibody(HRP)(VeriBlot for IP Detection Reagent (HRP) ab131366) was used at 1/5000 dilution.
Lane 1: Rat testis tissue lysate 10μg
Lane 2: ab272494 IP in Rat testis tissue lysate
Lane 3: Rabbit monoclonal IgG (Rabbit IgG, monoclonal [EPR25A] - Isotype Control ab172730) instead of ab272494 in rat testis tissue lysate
Blocking and dilution buffer and concentration: 5% NFDM/TBST.
Exposure time: 58 seconds
All lanes: Immunoprecipitation - Anti-CYP11A1 antibody [EPR24868-86] (ab272494)
Predicted band size: 60 kDa
Observed band size: 50 kDa
Flow cytometric analysis of 4% paraformaldehyde fixed 90% methanol permeabilized JEG-3 (Human placenta epithelial choriocarcinoma) cells labelling CYP11A1 with ab272494 at 1/500 dilution (0.1ug) (Red) compared with a Rabbit monoclonal IgG (Rabbit IgG, monoclonal [EPR25A] - Isotype Control ab172730) (Black) isotype control and an unlabelled control (cells without incubation with primary antibody and secondary antibody) (Blue). A Goat Anti-Rabbit IgG (Alexa Fluor® 488, Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) preadsorbed ab150081) at 1/2000 dilution was used as the secondary antibody.
Flow cytometric analysis of 4% paraformaldehyde fixed 90% methanol permeabilized PC-12 (Rat adrenal gland pheochromocytoma) cells labelling CYP11A1 with ab272494 at 1/50 dilution (1ug) (Red) compared with a Rabbit monoclonal IgG (Rabbit IgG, monoclonal [EPR25A] - Isotype Control ab172730) (Black) isotype control and an unlabelled control (cells without incubation with primary antibody and secondary antibody) (Blue). A Goat Anti-Rabbit IgG (Alexa Fluor® 488, Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) preadsorbed ab150081) at 1/2000 dilution was used as the secondary antibody.
Fluorescence multiplex immunohistochemical analysis of human adrenal gland (formalin-fixed paraffin-embedded section). Panel A shows merged staining of anti-PCSK2 stained on adrenal medulla (Anti-PCSK2 antibody [EPR23578-19] ab274418; gray; Opal™690) at 1:2000 (0.263 μg/ml) [Panel B], anti-CYP11A1 stained on adrenal cortex (ab272494; green; Opal™520) at 1:10000 (0.053 μg/ml) [Panel C], and anti-Collagen VI stained on extracellular matrix (Anti-Collagen VI antibody [EPR17072] ab182744; red; Opal™570) at 1:1000 (1.518 μg/ml) [Panel D] on human adrenal gland. DAPI was used as a nuclear counter stain. Followed by Opal Polymer HRP Ms + Rb secondary antibody. The immunostaining was performed on a Leica Biosystems BOND® RX instrument with an Opal™ 4-color kit. Image acquisition was performed with Leica SP8 confocal microscope. The section was incubated in three rounds of staining: in the order of Anti-PCSK2 antibody [EPR23578-19] ab274418, ab272494, and Anti-Collagen VI antibody [EPR17072] ab182744 for 30 mins at room temperature. Each round was followed by a separate fluorescent tyramide signal amplification system. Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0, epitope retrieval solution2) for 20 mins was used.
Fluorescence multiplex immunohistochemical analysis of human adrenal gland (formalin-fixed paraffin-embedded section). Panel A shows merged staining of anti-PCSK2 stained on adrenal medulla (Anti-PCSK2 antibody [EPR23578-19] ab274418; gray; Opal™690) at 1:2000 (0.263 μg/ml) [Panel B], anti-CYP11A1 stained on adrenal cortex (ab272494; green; Opal™520) at 1:10000 (0.053 μg/ml) [Panel C], and anti-Neuropeptide Y stained on chromaffin cells (Anti-Neuropeptide Y antibody [EPR21877] ab221145; red; Opal™570) at 1:2000 (0.279 μg/ml) [Panel D] on human adrenal gland. DAPI was used as a nuclear counter stain. Followed by Opal Polymer HRP Ms + Rb secondary antibody. The immunostaining was performed on a Leica Biosystems BOND® RX instrument with an Opal™ 4-color kit. Image acquisition was performed with Leica SP8 confocal microscope. The section was incubated in three rounds of staining: in the order of Anti-PCSK2 antibody [EPR23578-19] ab274418, ab272494, and Anti-Neuropeptide Y antibody [EPR21877] ab221145 for 30 mins at room temperature. Each round was followed by a separate fluorescent tyramide signal amplification system. Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0, epitope retrieval solution2) for 20 mins was used.
Multiplex immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of human testis tissue.
Panel A: Merged staining of anti-Vimentin (Anti-Vimentin antibody [EPR3776] - BSA and Azide free ab193555; red; Opal™690), anti-CYP11A1 (ab272494; cyan; Opal™520) and anti-DDX4 / MVH (Anti-DDX4 / MVH antibody [EPR24148-58] ab270534; green; Opal™570) on human testis.
Panel B: Anti-CYP11A1 stained on Leydig cells.
Panel C: Anti-DDX4 / MVH stained on all spermatogenic cell types.
Panel D: Anti-Vimentin stained on Sertoli cells and fibroblasts.
Key protocol steps: The section was incubated in three rounds of staining: in the order of Anti-Vimentin antibody [EPR3776] - BSA and Azide free ab193555 (1:2000 dilution) and ab272494 (1:10000 dilution) for 30 mins, then Anti-DDX4 / MVH antibody [EPR24148-58] ab270534 (1:2000 dlilution) for 10 mins at room temperature. Each round was followed by a separate fluorescent tyramide signal amplification system.
The immunostaining was performed on a Leica Biosystems BOND® RX instrument with an Opal™ 4-color kit. Image acquisition was performed with Leica SP8 confocal microscope.
DAPI was used as a nuclear counter stain. Opal Polymer HRP Ms + Rb was used as a secondary.
Antigen retrieval: Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0, epitope retrieval solution2) for 20 mins
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