Summary

Name PDX1
Full Name Pancreas/duodenum homeobox protein 1
Synonyms PDX-1, Glucose-sensitive factor, GSF, Insulin promoter factor 1, IPF-1, Insulin upstream factor 1, IUF-1, Islet/duodenum homeobox-1, IDX-1, Somatostatin-transactivating factor 1, STF-1 | IPF1, STF1
Primary ID P52945
Links - -
Type protein
Relations 15
Pathways Insulin Signaling
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.

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Modifications Tables

Relations

Regulator Mechanism target score
+ img/unknown.png phosphorylation PDX1 0.361
Publications: 1 Organism: Mus Musculus
+ down-regulates quantity img/direct_inhibition.png phosphorylation PDX1 0.2
Publications: 4 Organism: Mus Musculus
Pathways:Insulin Signaling
+ down-regulates quantity by destabilization img/direct_inhibition.png phosphorylation PDX1 0.311
Publications: 1 Organism: Mus Musculus
+ down-regulates quantity img/direct_inhibition.png ubiquitination PDX1 0.331
Publications: 1 Organism: Mus Musculus
+ up-regulates quantity by expression img/direct-activation.png transcriptional regulation NKX6-1 0.481
Publications: 1 Organism: Mus Musculus
+ up-regulates quantity by expression img/indirect-activation.png transcriptional regulation PDX1 0.737
Publications: 1 Organism: Homo Sapiens
+ down-regulates quantity by destabilization img/direct_inhibition.png binding PDX1 0.311
Publications: 1 Organism: Mus Musculus
+ up-regulates quantity by expression img/indirect-activation.png transcriptional regulation Hexokinase 0.59
Publications: 2 Organism: Homo Sapiens
+ up-regulates quantity by expression img/indirect-activation.png transcriptional regulation GCK 0.59
Publications: 1 Organism: Homo Sapiens
+ up-regulates quantity by expression img/direct-activation.png transcriptional regulation INS 0.63
Publications: 1 Organism: Mus Musculus
Pathways:Insulin Signaling
+ up-regulates quantity by expression img/direct-activation.png transcriptional regulation SLC2A2 0.538
Publications: 1 Organism: Mus Musculus