Conserved properties of a urochordate estrogen receptor-related receptor (ERR) with mammalian ERRalpha. 2009

WooDong Park, and Gil Jung Kim, and Hueng-sik Choi, and Jean-Marc Vanacker, and Young Chang Sohn
Faculty of Marine Bioscience and Technology, Kangnung National University, Gangneung 210-702, Republic of Korea.

Estrogen receptor-related receptors (ERRs) were the first orphan nuclear receptors identified on the basis of their sequence similarity to the estrogen receptors. Although unique ERRs were found in some marine invertebrates, the molecular functions of these receptors are not well understood. In the present study, we identified three transcript variants of the tunicate Halocynthia roretzi ERR (Hr-ERR), varying in their 3' untranslated regions, and putatively encoding a unique receptor deriving from an ancestor protein common to vertebrate ERRalpha/beta/gamma. Maternal mRNA of Hr-ERR was detected throughout the entire egg cytoplasm and early embryos. Zygotic Hr-ERR was predominantly expressed in the heart, and at lower levels in muscle, stomach, gonad and digestive glands. Electrophoretic mobility shift assay demonstrated that Hr-ERR directly binds to the estrogen-response element (ERE) and ERR-response element (ERRE). Gene reporter assays also showed that Hr-ERR activates transcription through ERE and ERRE. Hr-ERR-mediated transactivation was modulated by various cofactors for mammalian ERRs, such as peroxisome proliferator-activated receptor gamma coactivator 1-alpha and small heterodimer partner. In addition, the ERR antagonists 4-hydroxytamoxifen and diethylstilbestrol inhibited the Hr-ERR-mediated transactivation, whereas Hr-ERR activity on ERE was further induced by genistein, an ERRalpha agonist. Taken together, our results show that Hr-ERR is an unduplicated ERR that however, possesses functional properties common to ERRalpha and not to ERRbeta/gamma.

UI MeSH Term Description Entries
D008322 Mammals Warm-blooded vertebrate animals belonging to the class Mammalia, including all that possess hair and suckle their young. Mammalia,Mammal
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D010802 Phylogeny The relationships of groups of organisms as reflected by their genetic makeup. Community Phylogenetics,Molecular Phylogenetics,Phylogenetic Analyses,Phylogenetic Analysis,Phylogenetic Clustering,Phylogenetic Comparative Analysis,Phylogenetic Comparative Methods,Phylogenetic Distance,Phylogenetic Generalized Least Squares,Phylogenetic Groups,Phylogenetic Incongruence,Phylogenetic Inference,Phylogenetic Networks,Phylogenetic Reconstruction,Phylogenetic Relatedness,Phylogenetic Relationships,Phylogenetic Signal,Phylogenetic Structure,Phylogenetic Tree,Phylogenetic Trees,Phylogenomics,Analyse, Phylogenetic,Analysis, Phylogenetic,Analysis, Phylogenetic Comparative,Clustering, Phylogenetic,Community Phylogenetic,Comparative Analysis, Phylogenetic,Comparative Method, Phylogenetic,Distance, Phylogenetic,Group, Phylogenetic,Incongruence, Phylogenetic,Inference, Phylogenetic,Method, Phylogenetic Comparative,Molecular Phylogenetic,Network, Phylogenetic,Phylogenetic Analyse,Phylogenetic Clusterings,Phylogenetic Comparative Analyses,Phylogenetic Comparative Method,Phylogenetic Distances,Phylogenetic Group,Phylogenetic Incongruences,Phylogenetic Inferences,Phylogenetic Network,Phylogenetic Reconstructions,Phylogenetic Relatednesses,Phylogenetic Relationship,Phylogenetic Signals,Phylogenetic Structures,Phylogenetic, Community,Phylogenetic, Molecular,Phylogenies,Phylogenomic,Reconstruction, Phylogenetic,Relatedness, Phylogenetic,Relationship, Phylogenetic,Signal, Phylogenetic,Structure, Phylogenetic,Tree, Phylogenetic
D011960 Receptors, Estrogen Cytoplasmic proteins that bind estrogens and migrate to the nucleus where they regulate DNA transcription. Evaluation of the state of estrogen receptors in breast cancer patients has become clinically important. Estrogen Receptor,Estrogen Receptors,Estrogen Nuclear Receptor,Estrogen Receptor Type I,Estrogen Receptor Type II,Estrogen Receptors Type I,Estrogen Receptors Type II,Receptor, Estrogen Nuclear,Receptors, Estrogen, Type I,Receptors, Estrogen, Type II,Nuclear Receptor, Estrogen,Receptor, Estrogen
D002460 Cell Line Established cell cultures that have the potential to propagate indefinitely. Cell Lines,Line, Cell,Lines, Cell
D006367 HeLa Cells The first continuously cultured human malignant CELL LINE, derived from the cervical carcinoma of Henrietta Lacks. These cells are used for, among other things, VIRUS CULTIVATION and PRECLINICAL DRUG EVALUATION assays. Cell, HeLa,Cells, HeLa,HeLa Cell
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000097983 ERRalpha Estrogen-Related Receptor An orphan nuclear receptor that belongs to the ERR subfamily. It has enriched expression in tissues with high oxidative metabolic capacity. ERR1 Protein,Estrogen-Related Receptor 1,Estrogen-Related Receptor alpha,ERRalpha
D000595 Amino Acid Sequence The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION. Protein Structure, Primary,Amino Acid Sequences,Sequence, Amino Acid,Sequences, Amino Acid,Primary Protein Structure,Primary Protein Structures,Protein Structures, Primary,Structure, Primary Protein,Structures, Primary Protein
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia

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