PDX1 Recombinant Rabbit Monoclonal Antibody [JM62-45]
Catalog# ET1705-99
PDX1 Recombinant Rabbit Monoclonal Antibody [JM62-45]
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WB
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IHC-P
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IF-Cell
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IF-Tissue
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Human
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unconjugated
Overview
Product Name
PDX1 Recombinant Rabbit Monoclonal Antibody [JM62-45]
Antibody Type
Recombinant Rabbit monoclonal Antibody
Immunogen
Synthetic peptide within Human PDX1 234-283 / 283.
Species Reactivity
Human
Validated Applications
WB, IHC-P, IF-Cell, IF-Tissue
Molecular Weight
Predicted band size: 31 kDa
Positive Control
Hela cell lysates, human pancreas tissue, human gallbladder tissue, human stomach tissue.
Conjugation
unconjugated
Clone Number
JM62-45
RRID
Product Features
Form
Liquid
Concentration
Storage Instructions
Shipped at 4℃. Store at +4℃ short term (1-2 weeks). Store at -20℃ long term.
Storage Buffer
1*TBS (pH7.4), 0.05% BSA, 40% Glycerol. Preservative: 0.05% Sodium Azide.
Isotype
IgG
Purification Method
Protein A affinity purified.
Application Dilution
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WB
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1:500-1:1,000
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IHC-P
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1:100-1:800
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IF-Cell
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1:50-1:200
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IF-Tissue
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1:50-1:200
Target
Function
Activates insulin, somatostatin, glucokinase, islet amyloid polypeptide and glucose transporter type 2 gene transcription. Particularly involved in glucose-dependent regulation of insulin gene transcription. As part of a PDX1:PBX1b:MEIS2b complex in pancreatic acinar cells is involved in the transcriptional activation of the ELA1 enhancer; the complex binds to the enhancer B element and cooperates with the transcription factor 1 complex (PTF1) bound to the enhancer A element. Binds preferentially the DNA motif 5'-[CT]TAAT[TG]-3'. During development, specifies the early pancreatic epithelium, permitting its proliferation, branching and subsequent differentiation. At adult stage, required for maintaining the hormone-producing phenotype of the beta-cell.
Background References
1. Qiu G et al. Formononetin exhibits anti-hyperglycemic activity in alloxan-induced type 1 diabetic mice. Exp Biol Med (Maywood) 242:223-230 (2017).
2. Wang W et al. PDX1 and ISL1 differentially coordinate with epigenetic modifications to regulate insulin gene expression in varied glucose concentrations. Mol Cell Endocrinol 428:38-48 (2016).
Sequence Similarity
Belongs to the Antp homeobox family. IPF1/XlHbox-8 subfamily.
Tissue Specificity
Duodenum and pancreas (Langerhans islet beta cells and small subsets of endocrine non-beta-cells, at low levels in acinar cells).
Post-translational Modification
Phosphorylated by the SAPK2 pathway at high intracellular glucose concentration. Phosphorylated by HIPK2 on Ser-268 upon glucose accumulation. This phosphorylation mediates subnuclear localization shifting. Phosphorylation by PASK may lead to translocation into the cytosol (By similarity).
Subcellular Location
Cytosol, Nucleus.
UNIPROT
Synonyms
Glucose sensitive factor antibody
Glucose-sensitive factor antibody
GSF antibody
IDX 1 antibody
IDX-1 antibody
IDX1 antibody
Insulin promoter factor 1 antibody
Insulin promoter factor 1 homeodomain transcription factor antibody
Insulin upstream factor 1 antibody
IPF 1 antibody
ExpandImages
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Western blot analysis of PDX1 on Hela cell lysates. Proteins were transferred to a PVDF membrane and blocked with 5% BSA in PBS for 1 hour at room temperature. The primary antibody (ET1705-99, 1/500) was used in 5% BSA at room temperature for 2 hours. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1:200,000 dilution was used for 1 hour at room temperature.
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Immunofluorescence staining of paraffin-embedded human pancreas tissue using anti-PDX1 antibody.The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 20 minutes.(sodium citrate buffer (pH 6.0) (high pressure) for 2 minutes.) The tissues were blocked in 10% negative goat serum for 1 hour at room temperature, washed with PBS, and then probed with ET1705-99 at 1/50 dilution for 10 hours at 4℃ and detected using Alexa Fluor® 488 conjugate-Goat anti-Rabbit IgG (H+L) Secondary Antibody at a dilution of 1:500 for 1 hour at room temperature.
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Immunohistochemical analysis of paraffin-embedded human pancreas tissue with Rabbit anti-PDX1 antibody (ET1705-99) at 1/800 dilution.
The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) (high pressure) for 2 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ET1705-99) at 1/800 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX. -
Immunohistochemical analysis of paraffin-embedded human gallbladder tissue with Rabbit anti-PDX1 antibody (ET1705-99) at 1/100 dilution.
The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) (high pressure) for 2 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ET1705-99) at 1/100 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX. -
Immunohistochemical analysis of paraffin-embedded human stomach tissue with Rabbit anti-PDX1 antibody (ET1705-99) at 1/1,000 dilution.
The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) (high pressure) for 2 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ET1705-99) at 1/1,000 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX. -
Immunocytochemistry analysis of HeLa cells labeling PDX1 with Rabbit anti-PDX1 antibody (ET1705-99) at 1/100 dilution.
Cells were fixed in 4% paraformaldehyde for 15 minutes at room temperature, permeabilized with 0.1% Triton X-100 in PBS for 15 minutes at room temperature, then blocked with 1% BSA in 10% negative goat serum for 1 hour at room temperature. Cells were then incubated with Rabbit anti-PDX1 antibody (ET1705-99) at 1/100 dilution in 1% BSA in PBST overnight at 4 ℃. Goat Anti-Rabbit IgG H&L (iFluor™ 488, HA1121) was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. Nuclear DNA was labelled in blue with DAPI.
Beta tubulin (HA601187, red) was stained at 1/100 dilution overnight at +4℃. Goat Anti-Mouse IgG H&L (iFluor™ 594, HA1126) was used as the secondary antibody at 1/1,000 dilution.
Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"