Abstract:
:Transcriptional activity of nuclear receptors is the result of transactivation capability and the concentration of the receptor protein. The concentration of ecdysteroid receptor (EcR) isoforms, constitutively expressed in mammalian CHO cells, is dependent on a number of factors. As shown previously, ligand binding stabilizes receptor protein concentration. In this paper, we investigate the degradation of EcR isoforms and provide evidence that N-terminal degradation is modulated by isoform-specific ubiquitination sites present in the A/B domains of EcR-A and -B1. This was demonstrated by the increase in EcR concentration by treatment with carbobenzoxy-L-leucyl-L-leucyl-L-leucinal (MG132), an inhibitor of ubiquitin-mediated proteasomal degradation and by deletion of ubiquitination sites. In addition, EcR is degraded by the peptidyl-dipeptidase cathepsin B (CatB) and the endopeptidase cathepsin S (CatS) at the C-terminus in an isoform-specific manner, despite identical C-termini. Ubiquitin-proteasome-mediated degradation and the proteolytic action are modulated by heterodimerization with Ultraspiracle (USP). The complex regulation of receptor protein concentration offers an additional opportunity to regulate transcriptional activity in an isoform- and target cell-specific way and allows the temporal limitation of hormone action.
journal_name
Insect Mol Bioljournal_title
Insect molecular biologyauthors
Schauer S,Burster T,Spindler-Barth Mdoi
10.1111/j.1365-2583.2012.01144.xsubject
Has Abstractpub_date
2012-06-01 00:00:00pages
383-94issue
3eissn
0962-1075issn
1365-2583journal_volume
21pub_type
杂志文章abstract::Costelytra zealandica larvae are pests of New Zealand pastures causing damage by feeding on the roots of grasses and clovers. The major larval protein digestive enzymes are serine proteases (SPs), which are targets for disruption in pest control. An expressed sequence tag (EST) library from healthy, third instar larva...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.2008.00798.x
更新日期:2008-06-01 00:00:00
abstract::In the wake of constant improvements in sequencing technologies, numerous insect genomes have been sequenced. Currently, 1219 insect genome-sequencing projects have been registered with the National Center for Biotechnology Information, including 401 that have genome assemblies and 155 with an official gene set of ann...
journal_title:Insect molecular biology
pub_type: 杂志文章,评审
doi:10.1111/imb.12599
更新日期:2019-12-01 00:00:00
abstract::A new piggyBac-related transposable element (TE) was found in the genome of a mutant Anticarsia gemmatalis multiple nucleopolyhedrovirus interrupting an inhibitor of apoptosis gene. This mutant virus induces apoptosis upon infection of an Anticarsia gemmatalis cell line, but not in a Trichoplusia ni cell line. The seq...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.2009.00917.x
更新日期:2009-11-01 00:00:00
abstract::Insects and other arthropods have an effective innate immune system that can clear infections with bacteria and other microorganisms. Despite this ability, one group of bacteria, the spiroplasmas, survive unharmed within the haemolymph of a wide range of arthropod hosts. We investigated the interaction between one mem...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1046/j.1365-2583.2003.00380.x
更新日期:2003-02-01 00:00:00
abstract::Little is known about when, how or even if the wing development gene network elucidated in Drosophila is deployed in direct-developing insects. Here we identify the wing development genes (as determined in Drosophila) of the pea aphid (Acyrthosiphon pisum), which produces winged or unwinged adults in response to envir...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.2009.00935.x
更新日期:2010-03-01 00:00:00
abstract::In this paper we describe the peculiar structures and preferential codon usage found in wild silkworm fibroin genes. We determined a 1350 bp nucleotide sequence from the Chinese oak silkworm, Antheraea pernyi. The deduced amino acid sequence was partitioned into thirteen polyalanine-containing repetitive motifs, which...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1046/j.1365-2583.1997.00161.x
更新日期:1997-02-01 00:00:00
abstract::Phenoloxidases, including tyrosinases and laccases, are enzymes involved in the synthesis of melanin, a process that can be elicited during insect immune responses, cuticle maturation, wound healing and egg chorion development. We cloned a putative inhibitor of melanization (POI) from Anopheles gambiae on the basis of...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.2006.00643.x
更新日期:2006-06-01 00:00:00
abstract::Cyclobutane pyrimidine dimer (CPD) photolyases repair ultraviolet (UV)-induced DNA damage using blue light. To get insight in the origin of baculovirus CPD photolyase (phr) genes, homologues in the lepidopteran insects Chrysodeixis chalcites, Spodoptera exigua and Trichoplusia ni were identified and characterized. Lep...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.2011.01076.x
更新日期:2011-08-01 00:00:00
abstract::Three genes encoding clan MB metalloproteinases (EpMP1-3) were identified from venom glands of the ectoparasitic wasp Eulophus pennicornis. The derived amino acid sequences predict mature proteins of approximately 46 kDa, with a novel two-domain structure comprising a C-terminal reprolysin domain, and an N-terminal do...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.2009.00864.x
更新日期:2009-04-01 00:00:00
abstract::In the present study, we characterized a full-length cDNA encoding a putative iron-binding protein transferrin from the lepidopteran Mediterranean flour moth (EkTrf, 2397 bp). The putative EkTrf is 683 amino acids with a molecular mass of approximately 76 kDa. The deduced amino acid sequence showed significant homolog...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.2011.01129.x
更新日期:2012-04-01 00:00:00
abstract::HindIII restriction digests of the rDNA repeat unit of the German cockroach, Blattella germanica, reveal significant intraspecies sequence polymorphism. This variability is probably caused by structural differences within the nontranscribed spacer regions (NTS) of the ribosomal repeat unit. HindIII rDNA fragment polym...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1046/j.1365-2583.2000.00175.x
更新日期:2000-04-01 00:00:00
abstract::The brown planthopper (BPH), Nilaparvata lugens, is a major threat to rice production. The eggshell plays an important role in insect reproduction. The constituents and formation process of BPH eggshells remains largely unknown. Here, we report a novel eggshell-associated protein, NlChP38, containing an amelogenin dom...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/imb.12576
更新日期:2019-10-01 00:00:00
abstract::Rapid degradation of odours after interaction with olfactory receptors is a critical step of the signal reception process. However, the implied mechanisms are still largely unknown in vertebrates as well as in insects. Involvement of odourant-degrading enzymes in odourant degradation within the antennae has been shown...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.2006.00702.x
更新日期:2007-02-01 00:00:00
abstract::A microarray analysis of 14 900 genes of the malaria vector mosquito, Anopheles gambiae, shows that as many as 33% (4924) of their corresponding transcription products vary in abundance within 24 h after a blood meal. Approximately half (2388) of these products increase in their accumulation and the remainder (2536) d...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.2005.00567.x
更新日期:2005-08-01 00:00:00
abstract::Knockdown Resistance to High Temperature (KRHT) is an adaptive trait of thermotolerance in insects. An interval mapping was performed on chromosome X of Drosophila melanogaster to search for quantitative trait loci (QTL) affecting KRHT. A backcross population was obtained from two lines that dramatically differ for KR...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.2007.00747.x
更新日期:2007-08-01 00:00:00
abstract::To elucidate the molecular mechanisms underlying honeybee social behaviours, we identified a novel gene, Nb-1, whose expression in the worker brain changes according to the age-dependent division of labour in normal colonies. The open reading frames contained in the Nb-1 cDNA were not conserved in the homologue of a r...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.2009.00911.x
更新日期:2009-11-01 00:00:00
abstract::The insertion of exogenous genetic cargo into insects using transposable elements is a powerful research tool with potential applications in meeting food security and public health challenges facing humanity. piggyBac is the transposable element most commonly utilized for insect germline transformation. The described ...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/imb.12220
更新日期:2016-06-01 00:00:00
abstract::Although the Hymenoptera represent a remarkably diverse and socioeconomically important group that is of considerable interest in genome biology, they remain understudied in terms of genome size. This study reports new genome size estimates for 89 species of ants, bees and wasps, representing 17 families and four supe...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.2010.00992.x
更新日期:2010-06-01 00:00:00
abstract::The genome sequence of Aedes aegypti was recently reported. A significant amount of Expressed Sequence Tags (ESTs) were sequenced to aid in the gene prediction process. In the present work we describe an integrated analysis of the genomic and EST data, focusing on genes with preferential expression in larvae (LG), adu...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.2008.00845.x
更新日期:2009-02-01 00:00:00
abstract::RNA interference (RNAi) has emerged as a promising method for validating gene function; however, its utility in nonmodel insects has proven problematic, with delivery methods being one of the main obstacles. This study investigates a novel method of RNAi delivery in aphids, the aerosolization of short interfering RNA ...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/imb.12301
更新日期:2017-06-01 00:00:00
abstract::A gene from the Mediterranean fruit fly (Medfly) Ceratitis capitata, belonging to the hsp70 family of genes, has been cloned and characterized. This gene appears to be an example of a heat shock cognate (hsc) gene based on a variety of structural and functional criteria. The heat shock cognate genes serve critical rol...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1046/j.1365-2583.1998.71051.x
更新日期:1998-02-01 00:00:00
abstract::Isolating an unknown gene with fine-scale mapping is possible in a "non-model" organism. Sex determination in honey bees consists of a single locus (sex locus) with several complementary alleles. Diploid females are heterozygous at the sex locus, whereas haploid males arise from unfertilized eggs and are hemizygous. T...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1046/j.0962-1075.2001.00300.x
更新日期:2001-12-01 00:00:00
abstract::Wolbachia is an intracellular bacterium that has aroused intense interest because of its ability to alter the biology of its host in diverse ways. In the two-spotted spider mite, Tetranychus urticae, Wolbachia can induce complex cytoplasmic incompatibility (CI) phenotypes and fitness changes, although little is known ...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/imb.12128
更新日期:2015-02-01 00:00:00
abstract::The P450 monooxygenases of insects are important in the metabolism of numerous endogenous and exogenous compounds. However, identity of the P450 isoform(s) involved in these reactions is rarely known. A critical first step in the identification of important P450s is the cloning and sequencing of their genes. Toward th...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1046/j.1365-2583.2001.00256.x
更新日期:2001-06-01 00:00:00
abstract::Germline transformation using a piggyBac-derived vector is feasible in the sawfly, Athalia rosae. A previously generated transgenic line carrying green fluorescence protein (GFP) genes as reporters was successfully maintained and preserved without consecutive rearing. Sperm taken from males that were frozen directly i...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.2004.00526.x
更新日期:2005-01-01 00:00:00
abstract::The full-length Hsp90 cDNA in Delia antiqua was cloned and sequenced. The deduced polypeptide comprised 717 amino acid residues, with a molecular mass of 82 140 Da. Summer- and winter-diapauses both elevated HSP90 transcript levels in D. antiqua pupae. Levels gradually increased with time in summer diapausing pupae wh...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.2005.00602.x
更新日期:2005-12-01 00:00:00
abstract::Lipids of the insect cuticle have important roles in resistance against the arid environment and invasion of foreign substances. Fatty acid synthase (FAS) is an important enzyme of the insect lipid synthesis pathway. In the present study, we identified three FAS genes from transcriptome data of the migratory locust, L...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/imb.12665
更新日期:2020-12-01 00:00:00
abstract::E26 transformation-specific (Ets) family transcription factors are known to play roles in various biological phenomena, including immunity, in vertebrates. However, the mechanisms by which Ets proteins contribute to immunity in invertebrates remain poorly understood. In this study, we identified a cDNA encoding BmEts2...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/imb.12244
更新日期:2016-10-01 00:00:00
abstract::Ticks continue to be a threat to animal and human health, and new and novel control strategies are needed for ticks and tick-borne pathogens. The characterization of the tick-pathogen interface and the tick immune response to microbial infections is fundamental toward the formulation of new control strategies for tick...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.2010.01037.x
更新日期:2010-10-01 00:00:00
abstract::Expression of heat shock proteins (hsp) in the BRL-AG-3C cell line from the cotton boll weevil was examined. It was determined that the maximal expression of endogenous hsp occurred at 41 degrees C. Various transfection methods were then compared using this cell line in conjunction with a transiently expressed bacteri...
journal_title:Insect molecular biology
pub_type: 杂志文章
doi:10.1111/j.1365-2583.1993.tb00108.x
更新日期:1992-01-01 00:00:00