PDX1
Sign in to saveAlso known as GSF, IDX-1, IPF1, IUF1, MODY4, PAGEN1, PDX-1, STF-1
PDX1 (pancreatic and duodenal homeobox 1), also known as insulin promoter factor 1, is a transcription factor in the ParaHox gene cluster. In vertebrates, Pdx1 is necessary for pancreatic development, including β-cell maturation, and duodenal differentiation. In humans this protein is encoded by the PDX1 gene, which was formerly known as IPF1. The gene was originally identified in the clawed frog Xenopus laevis and is present widely across the evolutionary diversity of bilaterian animals, although it has been lost in evolution in arthropods and nematodes. Despite the gene name being Pdx1, ther
Gene data
PDX1- Name
- pancreatic and duodenal homeobox 1
- Type
- protein-coding
- Position
- 27,919,994–27,926,313 (+)
- Aliases
- GSF, IDX-1, IPF1, IUF1, MODY4, PAGEN1, PDX-1, STF-1
- Ensembl
- ENSG00000139515
- RefSeq RNA
- NM_000209.4
- RefSeq protein
- NP_000200.1
The protein encoded by this gene is a transcriptional activator of several genes, including insulin, somatostatin, glucokinase, islet amyloid polypeptide, and glucose transporter type 2. The encoded nuclear protein is involved in the early development of the pancreas and plays a major role in glucose-dependent regulation of insulin gene expression. Defects in this gene are a cause of pancreatic agenesis, which can lead to early-onset insulin-dependent diabetes mellitus (IDDM), as well as maturity onset diabetes of the young type 4 (MODY4). [provided by RefSeq, Aug 2017].
Gene Ontology
Biological process
Molecular function
Cellular component
Pathways
via MyGene.info
Gene · Ensembl
pancreatic and duodenal homeobox 1
- Symbol
- PDX1
- Biotype
- Protein coding
- Organism
- Homo sapiens
- Location
- 13:27,919,994-27,926,313
- Strand
- Forward (+)
- Assembly
- GRCh38
via Ensembl · EMBL-EBI
Wikidata facts
- Instance of
- gene
- Image
- Protein PDX1 PDB 2h1k.png
Show 8 more facts
- HomoloGene ID
- 175
- genomic end
- 28500368
- found in taxon
- Homo sapiens
- exact match
- identifiers.org/ncbigene/3651
- genomic start
- 27920000
- chromosome
- human chromosome 13
- cytogenetic location
- 13q12.2
- expressed in
- body of stomach
Sources (7)
via Wikidata · CC0
~5 min read
Encyclopedic overview
9 sectionsContents
- Function
- Pancreatic development
- β-cell maturation and survival
- Duodenum
- Pathology
- Interactions
- References
- Further reading
- External links
PDX1 (pancreatic and duodenal homeobox 1), also known as insulin promoter factor 1, is a transcription factor in the ParaHox gene cluster. In vertebrates, Pdx1 is necessary for pancreatic development, including β-cell maturation, and duodenal differentiation. In humans this protein is encoded by the PDX1 gene, which was formerly known as IPF1. The gene was originally identified in the clawed frog Xenopus laevis and is present widely across the evolutionary diversity of bilaterian animals, although it has been lost in evolution in arthropods and nematodes. Despite the gene name being Pdx1, there is no Pdx2 gene in most animals; single-copy Pdx1 orthologs have been identified in all mammals. Coelacanth and cartilaginous fish are, so far, the only vertebrates shown to have two Pdx genes, Pdx1 and Pdx2.
== Function ==
Excerpted from Wikipedia’s “PDX1” article, available under the CC BY-SA 4.0 licence.