5K57 | pdb_00005k57

HDD domain from human Ddi2

External Resource: Annotation

Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	TruD	e5k57A1	A: a/b three-layered sandwiches	X: HIT-like	H: HIT-related	T: HIT-related	F: TruD	ECOD (v294.1)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF24669	Ddi2 HDD domain (Ddi2_HDD)	Ddi2 HDD domain	This domain is found in the human DNA-Damage-Inducible 2 (hDdi2) and related proteins. hDdi2 is a member of the Ddi1-like protein family which is intricately connected to the UBQ-proteasome. The better studied yeast homologue Ddi1 (yDdi1) has been im ...	This domain is found in the human DNA-Damage-Inducible 2 (hDdi2) and related proteins. hDdi2 is a member of the Ddi1-like protein family which is intricately connected to the UBQ-proteasome. The better studied yeast homologue Ddi1 (yDdi1) has been implicated in cell cycle regulation, DNA-damage response and exocytosis. There are significant functional differences between hDdi2 and yDdi1 [1]. The domain represented by this entry is located central in the hDdi2, between the UBL and aspartic protease-like RVP domain. It is named HDD after "the helical domain of Ddi". It is composed of four alpha-helices that are arranged in a helical bundle [1]. This domain may act as an interaction platform for an RVP substrate.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Protein DDI1 homolog 2	aspartic-type peptidase activity peptidase activity catalytic activity, acting on a protein hydrolase activity aspartic-type endopeptidase activity catalytic activity endopeptidase activity protein binding binding ubiquitin binding ubiquitin-like protein binding identical protein binding	regulation of protein stability biological regulation regulation of biological quality catabolic process proteasomal protein catabolic process metabolic process cellular process primary metabolic process protein catabolic process protein metabolic process macromolecule metabolic process macromolecule catabolic process cellular response to nitrogen compound cellular response to stimulus regulation of protein stability biological regulation regulation of biological quality catabolic process proteasomal protein catabolic process metabolic process cellular process primary metabolic process protein catabolic process protein metabolic process macromolecule metabolic process macromolecule catabolic process cellular response to nitrogen compound cellular response to stimulus cellular response to hydroxyurea cellular response to chemical stimulus response to hydroxyurea response to stimulus response to chemical response to nitrogen compound gene expression macromolecule biosynthetic process protein maturation biosynthetic process proteolysis protein processing regulation of DNA stability	intracellular organelle cellular anatomical structure intracellular anatomical structure organelle membraneless organelle intracellular membraneless organelle chromosome cytoplasm cytosol membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle cellular anatomical structure intracellular anatomical structure organelle membraneless organelle intracellular membraneless organelle chromosome cytoplasm cytosol membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR057273	Ddi1/2, HDD domain	Domain
A	IPR000626	Ubiquitin-like domain	Domain
A	IPR019103	Aspartic peptidase, DDI1-type	Domain
A	IPR033882	DNA damage inducible protein 1 ubiquitin-like domain	Domain
A	IPR021109	Aspartic peptidase domain superfamily	Homologous Superfamily
A	IPR029071	Ubiquitin-like domain superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q5TDH0	alcoholic pancreatitis malignant glioma ovarian cancer interstitial cystitis myopathy spina bifida juvenile dermatomyositis osteosarcoma tuberculosis

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.