2H1K | pdb_00002h1k

Crystal structure of the Pdx1 homeodomain in complex with DNA

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
E [auth A]	d2h1ka_	All alpha proteins	DNA/RNA-binding 3-helical bundle	Homeodomain-like	automated matches	automated matches	golden hamster (Mesocricetus auratus ) [TaxId: 10036 ],	SCOPe (2.08)
F [auth B]	d2h1kb_	All alpha proteins	DNA/RNA-binding 3-helical bundle	Homeodomain-like	automated matches	automated matches	golden hamster (Mesocricetus auratus ) [TaxId: 10036 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
E [auth A]	Cystatin	e2h1kA1	A: a/b three-layered sandwiches	X: Profilin-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Cystatin	ECOD (v294.1)
F [auth B]	HTHP	e2h1kB1	A: a/b three-layered sandwiches	X: HTH	H: Nudix	T: Nudix	F: HTHP	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
E [auth A]	1.10.10.60	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Homeodomain-like	CATH (4.3.0)
F [auth B]	1.10.10.60	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Homeodomain-like	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
E [auth A], F [auth B]	PF00046	Homeodomain (Homeodomain)	Homeodomain		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth C], C [auth E]	15-mer DNA	-	-	-
B [auth D], D [auth F]	15-mer DNA	-	-	-
E [auth A], F [auth B]	Pancreatic and duodenal homeobox 1	DNA binding sequence-specific DNA binding binding double-stranded DNA binding nucleic acid binding RNA polymerase II transcription regulatory region sequence-specific DNA binding cis-regulatory region sequence-specific DNA binding sequence-specific double-stranded DNA binding transcription cis-regulatory region binding transcription regulatory region nucleic acid binding RNA polymerase II cis-regulatory region sequence-specific DNA binding DNA-binding transcription factor activity, RNA polymerase II-specific transcription regulator activity DNA-binding transcription factor activity	developmental process multicellular organismal process epithelium development cellular developmental process endocrine system development animal organ development tissue development epithelial cell differentiation multicellular organism development pancreas development cell differentiation anatomical structure development cellular process endocrine pancreas development developmental process multicellular organismal process epithelium development cellular developmental process endocrine system development animal organ development tissue development epithelial cell differentiation multicellular organism development pancreas development cell differentiation anatomical structure development cellular process endocrine pancreas development enteroendocrine cell differentiation type B pancreatic cell differentiation system development positive regulation of cell communication regulation of localization establishment of protein localization regulation of cellular process nitrogen compound transport positive regulation of establishment of protein localization cell communication localization positive regulation of insulin secretion intracellular protein localization regulation of biological quality regulation of peptide hormone secretion regulation of biological process regulation of hormone levels positive regulation of peptide hormone secretion establishment of protein localization to extracellular region protein secretion establishment of localization regulation of protein secretion regulation of secretion positive regulation of protein localization regulation of hormone secretion regulation of protein localization regulation of peptide secretion transport signaling positive regulation of biological process positive regulation of secretion by cell hormone secretion protein localization to extracellular region positive regulation of protein transport peptide secretion regulation of secretion by cell secretion by cell positive regulation of hormone secretion positive regulation of secretion signal release positive regulation of cellular process positive regulation of peptide secretion regulation of signaling regulation of transport secretion regulation of peptide transport biological regulation regulation of establishment of protein localization export from cell cell-cell signaling regulation of protein transport positive regulation of protein secretion peptide transport positive regulation of transport protein transport regulation of insulin secretion peptide hormone secretion macromolecule localization hormone transport regulation of cell communication insulin secretion positive regulation of signaling positive regulation of DNA-templated transcription RNA metabolic process positive regulation of macromolecule biosynthetic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process positive regulation of metabolic process DNA-templated transcription regulation of RNA metabolic process transcription by RNA polymerase II positive regulation of biosynthetic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of transcription by RNA polymerase II primary metabolic process regulation of macromolecule metabolic process positive regulation of transcription by RNA polymerase II nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process positive regulation of RNA metabolic process regulation of gene expression biosynthetic process positive regulation of RNA biosynthetic process metabolic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle intracellular organelle organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
E [auth A], F [auth B]	IPR009057	Homedomain-like superfamily	Homologous Superfamily
E [auth A], F [auth B]	IPR020479	Homeodomain, metazoa	Domain
E [auth A], F [auth B]	IPR001356	Homeodomain	Domain
E [auth A], F [auth B]	IPR017995	Homeobox protein, antennapedia type	Family
E [auth A], F [auth B]	IPR017970	Homeobox, conserved site	Conserved Site

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.